Abstract: The present invention relates generally to multi-layered reflective insulating composites and a method of fabricating those composites. The present invention comprises a multi-layered reflective insulation system comprising a first protective layer; a first scattering optic layer; microsphere film layers; a polyblend foam layer; a second scattering optic layer; and a second protective layer. The present invention also comprises a method of manufacture of a multi-layered reflective insulation system comprising a first protective layer; a first scattering optic layer; microsphere film layers; a polyblend foam layer; a second scattering optic layer; a second protective layer; securably disposing the layers on top of each other; and securably attaching the layers. The multi-layered reflective insulation system provides a cost-effective and efficient insulation system.

Abstract: The present invention provides a polarizing plate comprising a substrate, a polarizing coating layer formed on one side of the substrate, a first adhesive layer formed on the polarizing coating layer, a first retardation coating layer formed on the first adhesive layer, a second adhesive layer formed on the first retardation coating layer, a second retardation coating layer formed on the second adhesive layer, and a soft layer formed on the second retardation coating layer, wherein, the soft layer has an amended toughness of 1,000 to 40,000 MPa·%. The polarizing plate according to the present invention has excellent bending resistance and thus can be effectively used for a flexible display.

Abstract: Provided is a polarizer. The polarizer includes a base layer and a wire grid layer which is disposed on the base layer and which include a plurality of wire metal patterns extending along a first direction and spaced apart from each other along a second direction crossing the first direction, wherein the wire grid layer is made of an aluminum (Al) alloy containing nickel (Ni) and lanthanum (La).

Abstract: Disclosed herein is a quantum rod light-guide plate for a backlight module of a liquid crystal display. The quantum rod light-guide plate includes a light-guide substrate with a side as a light in surface, a prism layer and a quantum rod layer. The prism layer is disposed on a first surface of the light-guide substrate and includes a plurality of parallel strip-shaped prisms extending along an extending direction parallel to the light incident surface of the light-guide substrate. The quantum rod layer is disposed on a second surface of the light-guide substrate opposite to the side of the prism layer, wherein the second surface is a light exiting surface and includes a plurality of quantum rods, wherein the major axes of the quantum rods are aligned along a direction parallel to the extending direction. With the quantum rod light-guide plate, the utilization of the backlight can be increased.

Abstract: A directional backlight unit and a three-dimensional (3D) image display device including the directional backlight unit are provided. The directional backlight unit includes: a light guide plate, a light source configured to irradiate an incident surface of the light guide plate with a plurality of color lights, and a grating that includes a sub-grating configured to react to all of the plurality of color lights. The directional backlight unit may further include a color filter that corresponds to a plurality of color lights emitted from each sub-grating.

Abstract: A device includes an input coupling grating having a first grating structure characterized by a first set of grating parameters. The input coupling grating is configured to receive light from a light source. The device also includes an expansion grating having a second grating structure characterized by a second set of grating parameters varying in at least two dimensions. The second grating structure is configured to receive light from the input coupling grating. The device further includes an output coupling grating having a third grating structure characterized by a third set of grating parameters. The output coupling grating is configured to receive light from the expansion grating and to output light to a viewer.

Abstract: A waveguide apparatus has in combination: a light pipe with an optical axis for guiding light therethrough; a light coupling element in optical contact with an elongate portion of the reflecting surface of the light guide; and an optical waveguide in optical contact with the coupling element.

Abstract: A light guide element of a wearable apparatus adapted to guide a light beam includes first and second light guide plates and a light splitting film. The first light guide plate has first and second surfaces, and a light entrance surface. The second light guide plate is disposed on the partial first surface and located on a transmission path of the light beam. The light splitting film is disposed between the partial first surface and the second light guide plate, and adjacent to the light entrance surface. The light splitting film is adapted to reflect a portion of the light beam and allow the partial light beam from the partial first surface to pass to the second light guide plate.

Abstract: The present invention discloses a novel light guide plate lamp. A light guide plate is disposed at an opening of a casing, a bottom reflective surface is disposed between the bottom of the casing and the light guide plate, and lateral reflective surfaces are disposed between the lateral surfaces of the casing and the lateral surfaces of the light guide plate. A part of light generated by the lamp beads is reflected by an arc-shaped or inclined lateral reflective surface onto the bottom reflective panel and the other lateral reflective surface, which eventually shoots out from the light guide plate at the opening of the casing after refraction and reflection. As a result, the lamp of the present invention has uniform and soft light emergence and no dazzling. Meanwhile this structural design is simple and reasonable, allowing convenience of manufacture and assembly, which may lower manufacturing cost.

Abstract: A backlight module includes a first light guide plate; a second light guide plate located below the first light guide plate; a first backlight source constructed to generate a light incident to the first light guide plate; a second backlight source constructed to generate a light incident to the first light guide plate after passing through the second light guide plate; and a plurality of reflective bars disposed at a surface of the first light guide plate facing the second light guide plate with a gap between two adjacent reflective bars. The backlight module may be switched between the narrow viewing angle mode and the wide viewing angle mode by controlling the first backlight source and/or the second backlight source to be turned off or turned on.

Abstract: A substrate with a textured surface is disclosed. The substrate may be, for example, a light emitter comprising a light guide, for example a backlight element for use in a display device, wherein a surface of the light guide, for example a glass substrate, is configured to have a textured surface with a predetermined RMS roughness and a predetermined correlation length of the texture. A plurality of light scatter suppressing features can be provided on the textured surface. Textured surfaces disclosed herein may be effective to reduce electrostatic charging of the substrate surface. Methods of producing the textured surface are also disclosed.

Abstract: A backlight module includes a light guide panel having a light output region and a light blocking region, a light source that emits light to a side surface of the light guide panel, a color layer disposed over the light output region that transmits colored light, a planarization layer that covers the color layer on the light guide panel, and an air gap provided between the light blocking region and the planarization layer.

Abstract: A display device includes a display panel and a backlight module. The display panel is disposed opposite to the backlight module. The backlight module includes a metal substrate, a light emitting element, a circuit layer, an adhesive layer, a reflective element and a light guiding element. The light emitting element is disposed at one side of the circuit layer facing the light guiding element. The adhesive layer is disposed between the circuit layer and a surface of the metal substrate. The reflective element is disposed adjacent to the circuit layer and the adhesive layer and is located on the surface of the metal substrate. The reflective element is disposed between the metal substrate and the light guiding element. A bottom surface of the adhesive layer and at least a part of a bottom surface of the reflective element are located at a same plane.

Abstract: A double-sided glassless three-dimensional (3D) display apparatus including a backlight unit may include an light source unit configured to emit light to the front and the rear thereof by diffracting incident light, and first and second display devices configured to use the light emitted by the light source unit as light for a 3D image formation and to form the 3D image on both sides of the light source unit. The light source unit may include a light source portion configured to emit three lights that have three different respective wavelengths and a light guide panel configured to transmit the lights emitted by the light source portion to the first and second display devices.

Abstract: A planar illumination apparatus according to an embodiment includes a light guide plate that outputs light entered into the light guide plate through a side face of the light guide plate, a plurality of light sources that are arranged on the side face side, and emit light to be entered into the side face, a substrate having a mounting surface where the light sources are mounted, and first wiring that is formed on an opposite surface opposite to the mounting surface of the substrate, and connects serially the light sources with each other.

Abstract: A light emitting module includes a light guide, a first light source, and a second light source. The light guide includes a first face, a second face oriented not parallel to the first face, a third face connected between the first face and the second face, and a light-emitting surface larger than each of the first face, the second face, and the third face. The first light source faces the first face. No light source is positioned between the first light source and an edge of the first face. The second light source faces the third face. No light source is positioned between the second light source and an edge of the third face. A distance from the second light source to the edge of the third face is greater than a distance from the first light source to the edge of the first face.

Abstract: The present disclosure discloses a backlight module and the manufacturing method thereof. The backlight module comprises a substrate, a plastic frame, a light guide plate, and a film set. The plastic frame is formed on the substrate through printing, which forms a housing space together with the substrate. The light guide plate and the film set are sequentially stacked in the housing space. The backlight module according to the present disclosure will not affect the display of the liquid crystal display panel during thermal expansion.

Abstract: A slim bezel backlight module and a liquid crystal display apparatus having the same are disclosed. The backlight module includes a light source, a light guide plate, a reflector, a plastic frame assembly and a square-shaped adhesive tape. The plastic frame assembly is designed to be integrated by iron material and plastic material, and a few plastic portions of the plastic frame assembly protruded from the sides of the plastic frame assembly to form a zigzagged surface for increasing the adhesion area for the square-shaped adhesive tape, thereby solving the problem that the lack of enough border width makes the plastic frame assembly hard to be processed and assembled.

Abstract: A backlight unit and a display device including the same are provided. The backlight unit includes: a frame; a reflection sheet located on the frame; a housing coupled to at least one side of the frame; a substrate located on the housing; a light assembly mounted on the substrate; and a light guide plate located opposite to the light assembly on the reflection sheet, wherein the housing is exposed to the outside of the frame. Therefore, as the housing is exposed to the outside of the frame, even if a problem occurs in a light assembly, by separating only the housing, the problem can be solved, and the housing is exposed to the outside of the frame to enhance a heat releasing effect.

Abstract: In one aspect, a light emitting device comprises a film-based lightguide including folded and stacked strips extending from a lightguide region of the film. In one aspect, the film comprises light extracting features defining light emitting regions that extract light from at least one light source positioned to emit light into the stacked end of strips. The light emitting device may include a light reflecting layer physically coupled to the light emitting device, laminated to a layer of the film, or printed onto a layer of the film proximate the light emitting region of the film. The light emitting device may also include a fastener configured to attach the light emitting device to a wall or ceiling.

Abstract: A lighting device is provided. The lighting device may include a base operable to support the lighting device in an upright position. A translucent rod includes an elongated body having a bottom end and a top end. The bottom end is attached to the base. A light emitting bulb is positioned to emit light into the bottom end of the translucent rod. A power supply may provide power to the light emitting bulb. A balloon may be secured to the top end of the rod.

Abstract: Techniques are described for using confinement structures and/or pattern gratings to reduce or prevent the wicking of sealant polymer (e.g., glue) into the optically active areas of a multi-layered optical assembly. A multi-layered optical structure may include multiple layers of substrate imprinted with waveguide grating patterns. The multiple layers may be secured using an edge adhesive, such as a resin, epoxy, glue, and so forth. A confinement structure such as an edge pattern may be imprinted along the edge of each layer to control and confine the capillary flow of the edge adhesive and prevent the edge adhesive from wicking into the functional waveguide grating patterns of the layers. Moreover, the edge adhesive may be carbon doped or otherwise blackened to reduce the reflection of light off the edge back into the interior of the layer, thus improving the optical function of the assembly.

Abstract: Methods of forming ion-exchanged waveguides in glass substrates are disclosed. In one embodiment, a method of forming a waveguide in an ion-exchanged glass substrate having an ion-exchanged layer extending from a surface to a depth of layer of the ion-exchanged glass substrate includes locally heating at least one band at the surface of the ion-exchanged glass substrate to diffuse ions in the ion-exchanged layer within the at least one band. A concentration of ions within the at least one band is less than a concentration of ions outside of the at least one band, and at least one waveguide is defined within the ion-exchanged layer adjacent the at least one band. In some embodiments, the at least one waveguide is embedded within the ion-exchanged glass substrate such that an upper surface of the at least one waveguide is below the surface of the glass substrate by a depth d.

Abstract: Methods for cleaving an optical fiber that extends from a ferrule are provided herein. The ferrule can be aligned on a first side of a scribe wire and an unconstrained end of the optical fiber on a second side of the scribe wire. Tension can be applied to the scribe wire with the optical fiber. Relative motion between the scribe wire and the optical fiber can be caused, while the tension is applied with the optical fiber. The scribe wire and the optical fiber can be separated. A fiber optic shard can be cleaved from the optical fiber. The fiber optic shard may include the unconstrained end of the optical fiber.

Abstract: Beam combining optical systems include a fiber beam combiner having multiple inputs to which output fibers of laser diode sources are spliced. Cladding light stripping regions are situated at the splices, and include exposed portions of fiber claddings that are at least partially encapsulated with an optical adhesive or a polymer. A beam combiner fiber that is optically downstream of a laser source has an exposed cladding secured to a thermally conductive support with a polymer or other material that is index matched to the exposed cladding. This construction permits attenuation of cladding light propagating toward a beam combiner from a splice.

Abstract: A polarization rotator and an optical signal processing method are disclosed. A first transceiving waveguide includes a first end and a second end; a polarization rotation region waveguide includes a first waveguide and a second waveguide, where the first waveguide is located above the second waveguide, the first waveguide is connected to the second end of the first transceiving waveguide, the first waveguide and the second waveguide are non-linear profile waveguides; a mode conversion region waveguide includes a third waveguide and a fourth waveguide, where the third waveguide is connected to the second waveguide, the fourth waveguide is on a same horizontal plane as the third waveguide and the second waveguide, the third waveguide and the fourth waveguide are non-linear profile waveguides; and the second transceiving waveguide includes a third end and a fourth end, where the third end of the second transceiving waveguide is connected to the fourth waveguide.

Abstract: An optical fiber sensor extends coaxially with a controllable heater to provide high-resolution axial measurement of thermal properties such as thermal convection of the surrounding, Heat removal by either conduction or convection may be used to deduce material height in a tank, or velocity of flow when coupled with localized heating, or other aspects of the material based on thermal conductivity.

Abstract: Optical splitter modules and methods are disclosed. An optical splitter module includes a housing, a splitter chip, a plurality of optical fibers, and a base member. An outer coating of the optical fibers is stripped from the first end such that the first end has a bare portion extending from a fiber end and a stripped portion extending from the bare portion. The second end of each optical fiber has the outer coating with a diameter larger than the diameter of the stripped portion. A connector is coupled to the second end of each optical fiber. A fan-out body surrounds the coating of the optical fibers. The optical fibers are coupled to the surface of the base member such that the fiber end is positioned at the first edge of the base member. The first edge of the base member is coupled to the first edge of the splitter chip.

Abstract: In order to reduce a high frequency loss of a substrate-type optical waveguide without facilitating, in a low frequency domain, a reflection by an entrance end of a traveling-wave electrode, the substrate-type optical waveguide includes a coplanar line, provided on an upper surface of an upper cladding, which includes (i) a traveling-wave electrode connected to a P-type semiconductor region and (ii) an earth conductor connected to an N-type semiconductor region. The traveling-wave electrode and the earth conductor are provided so that a distance D therebetween decreases as a distance from an entrance end of the traveling-wave electrode increases.

Abstract: The optical device coupleable to a waveguide to receive an optical signal from the waveguide generally has at least two diffraction grating devices optically coupled to one another and having corresponding spectral responses, the spectral response of at least one of said diffraction grating devices being tunable to adjust an amount of overlapping between

Abstract: A photonic circuit including a structure of coupling to an external device, the structure including a main waveguide and at least two secondary waveguides, each secondary waveguide having a first portion substantially parallel to the main guide arranged in the vicinity of the main guide to perform an evanescent wave coupling between the main guide and the secondary guide, the first portion extending in a second portion having an end opposite to the first portion defining a coupling surface of the secondary guide, emerging at the level of an external surface of the circuit.

Abstract: An optical interface device for a photonic integrated system includes a plug and a receptacle. The receptacle is operably arranged on a PIC that supports waveguides. The plug operably supports optical fibers. The receptacle and plug are configured to operably engage to establish optical communication between the optical fibers and the waveguides. A tab on the receptacle is configured to constrain longitudinal motion while allowing for lateral motion of the receptacle to adjust its position relative to the PIC to optimize alignment. The plug can include a spacer sized to fit within a recess defined by the tab to further facilitate alignment. The receptacle and plug can be engaged and disengaged in a manner similar to conventional electrical connectors.

Abstract: An optical interface device for a photonic integrated system includes a plug and a receptacle. The receptacle is operably arranged on a PIC that supports waveguides. The plug operably supports optical fibers. The receptacle and plug are configured to operably engage to establish optical communication between the optical fibers and the waveguides. A tab on the receptacle is configured to constrain longitudinal motion while allowing for lateral motion of the receptacle to adjust its position relative to the PIC to optimize alignment. The plug can include a spacer sized to fit within a recess defined by the tab to further facilitate alignment. The plug can also include lenses to establish the optical communication between the optical fibers and the waveguides. The receptacle and plug can be engaged and disengaged in a manner similar to conventional electrical connectors.

Abstract: A photonic device such as a polarization controller includes a coupler, such as a 2×2 MMI coupler, or a series of such couplers. Couplers may be interspersed with other components such as phase shifters. Photodetectors such as photodiodes are coupled to input and output lines of the coupler or couplers, for example via taps. In various embodiments, all of the couplers include photodetectors monitoring light power for at least two of their inputs and outputs, and at least one of the couplers includes photodetectors monitoring at least three of its inputs and outputs. The arrangement of photodetectors can provide sufficient information for feedback control of the photonic device and/or determining the state of polarization of light within the photonic device. Signals from some photodetectors can be used to estimate light power at locations in the photonic device lacking photodetectors.

Abstract: An optical receptacle, includes a fiber stub having an optical fiber with a core and cladding, a ferrule with a through-hole fixing the optical fiber, a bonding agent fixing the optical fiber in the through hole and a holder holding the fiber stub. The optical fiber is disposed inside the through-hole over an entire region of the optical fiber, and includes a portion in which a core diameter and a fiber outer diameter decrease gradually toward an end surface of the ferrule on a side opposite to a side to be optically connected to a plug ferrule. The bonding agent is filled into a space between the optical fiber and an inner wall of the through-hole.

Abstract: A fiber optic cable and connector assembly is disclosed. In one aspect, the assembly includes a cable optical fiber, an optical fiber stub and a beam expanding fiber segment optically coupled between the cable optical fiber and the optical fiber stub. The optical fiber stub has a constant mode field diameter along its length and has a larger mode field diameter than the cable optical fiber. In another aspect, a fiber optic cable and connector assembly includes a fiber optic connector mounted at the end of a fiber optic cable. The fiber optic connector includes a ferrule assembly including an expanded beam fiber segment supported within the ferrule. The expanded beam fiber segment can be constructed such that the expanded beam fiber segment is polished first and then cleaved to an exact pitch length. The expanded beam fiber segment can be fusion spliced to a single mode optical fiber at a splice location behind the ferrule.

Abstract: Methods of securing an optical fiber within an optical fiber connector include applying heat to a front-end section of a ferrule through a heating sleeve. The heating sleeve at least partially surrounds the front-end section of the ferrule and heats a bonding agent that resides within the ferrule a securing temperature. The optical fiber is inserted into the optical fiber connector and through the bonding agent. The optical fiber is secured in the ferrule axial bore by the bonding agent when the bonding agent reaches the securing temperature.

Abstract: A fiber optic connector sub-assembly includes a ferrule having a front end, a rear end, and a ferrule bore extending between the front and rear ends along a longitudinal axis. The fiber optic connector sub-assembly also includes a bonding agent disposed in the ferrule bore and having first and second ends along the longitudinal axis. The bonding agent has been melted and solidified at the first and second ends.

Abstract: A connector assembly for a fiber optic cable comprises a multi-part inner housing adapted to support an optical fiber splice connection structure. A cable clamp is located at a proximal end of the inner housing and is adapted to engage an outer sheath of a fiber optic cable. Preferably, the cable clamp is rotatable with respect to the inner housing.

Abstract: A fiber optic connector arrangement includes a printed circuit board coupled to a connector housing. The printed circuit board includes a memory storage device that is configured to store physical layer information pertaining to the fiber optic connector arrangement. The printed circuit board also defines contacts that are electrically coupled to the memory storage device to enable the physical layer information to be read from the memory storage device by a media reading interface. A connector assembly includes at least one adapter assembly; a printed circuit board; and a media reading interface. The connector assembly also may include a tactile pressure sensor. The adapter assembly defines at least a first port and a second port that are configured to connect optical fibers of two connector arrangements. One or more connector assemblies can be mounted to a fiber panel system.

Abstract: A transimpedance amplifier and photodiode that has a bias voltage node established at a bias voltage and a ground node/plane that connects, over a short distance as compared to the prior art, to a photodiode and a transimpedance amplifier. The photodiode is in a substrate and configured to receive and convert an optical signal to an electrical current. The photodiode has an anode terminal and a cathode terminal which is connected to the bias voltage node. One or more capacitors in or on the substrate and connected between the bias node and the ground node. The transimpedance amplifier has an input connected to the anode terminal of the photodiode and an output that presents a voltage representing the optical signal to an output path. The transimpedance amplifier and the photodiode are both electrically connected in a flip chip configuration and the ground plane creates a coplanar waveguide.

Abstract: In an embodiment, an optical component assembly is disclosed and is configured to be at least partially disposed within at least one first opening of an optical subassembly housing. The at least one optical component assembly comprising a base extending from a first end to a second end along a longitudinal axis, and a vertical mount disposed on the base and including a first surface that provides a mounting region to couple to an optical component, the first surface defining a vertical axis that extends substantially upright from the base and a horizontal axis that is angled relative to the longitudinal axis of the base at a first angle, the vertical mount further providing a channel that extends through the vertical mount, wherein the channel provides an optical pathway angled relative to the first surface at the first angle, the first angle being substantially between about 15 and 75 degrees.

Abstract: The following steps are provided: encapsulating a series of connector components arranged in a column direction among multiple connector components on a support member that are arranged in each direction, respectively, in a row direction and in a column direction, in a state of substantial isolation from connector components adjacent to the series of connector components in the row direction using a first resin member; dicing the multiple connector components on the support member encapsulated using the first resin member into row units in the row direction; molding the multiple connector components on the support member, which have been encapsulated using the above-mentioned first resin member and diced, using a second resin member on a column-by-column basis; and dicing off the multiple molded connector components on the support member in the column direction one by one.

Abstract: A laser module service shelf is generally presented. In some embodiments, a laser system includes a rack including a stack of slots to support a plurality of laser modules in first positions within the rack, wherein the rack comprises a pair of struts extending at opposite sides of an opening in the rack through which the laser modules may pass, and a module service shelf attachable to the struts to support a weight of one of the laser modules in a second position that is cantilevered from the rack in alignment with the opening and one of the slots, wherein the module service shelf comprises a plurality of detachable sections. Other embodiments are also disclosed and claimed.

Abstract: A system includes an optical fiber situated to propagate a laser beam received from a laser source to an output of the optical fiber, a first cladding light stripper optically coupled to the optical fiber and situated to extract at least a portion of forward-propagating cladding light in the optical fiber, and a second cladding light stripper optically coupled to the optical fiber between the first cladding light stripper and the optical fiber output and situated to extract at least a portion of backward-propagating cladding light in the optical fiber.

Abstract: A surface light emitting semiconductor laser element, comprises a substrate, a lower reflector including a semiconductor multi-layer disposed on the substrate, an active layer disposed on the lower reflector, an upper reflector including a semiconductor multi-layer disposed on the active layer, a compound semiconductor layer having a first opening for exposing the upper reflector and extending over the upper reflector, and a metal film having a second opening for exposing the upper reflector disposed inside of the first opening and extending over the compound semiconductor layer, wherein the metal film and the compound semiconductor layer constitute a complex refractive index distribution structure where a complex refractive index is changed from the center of the second opening towards the outside. A method of emitting laser light in a single-peak transverse mode is also provided.

Abstract: An optical fiber cable includes a plurality of optical fibers and at least one tubular jacketing element surrounding the plurality of optical fibers. The jacketing element has a jacketing material containing at least a first ingredient being a thermoplastic polymer, a second ingredient being an intumescent material capable of releasing gas, under the influence of heat, for generating a foam, and a third ingredient being a stiffening agent capable of decomposing, under the influence of heat, with formation of a glass and/or of a ceramic material for stiffening the foam.

Abstract: A crush resistant optical cable and/or crush resistant optical fiber buffer tube are provided. The cable generally includes a tube having at least one layer formed from a first material and an optical fiber located within a channel of the first tube. The buffer tube is configured to protect optical fibers from crush or impact events through a cushioning action. For example, the first material may be a polymer material having modulus of elasticity of less than 200 MPa, and the layer of the tube acts as a compliant cushioning layer at least partially contacting and surrounding an outer surface of the optical fiber when radially directed forces are applied to the outer surface of the tube.

Abstract: A cable enclosure includes a base, a cover configured to cover the base to allow a cable to be enclosed between the cover and the base, and a cable insertion opening formed between a side edge of the base and a side edge of the cover to allow the cable to be inserted therethrough, wherein the cover has a plurality of first projections projecting into the cable insertion opening from the side edge of the cover toward the base, wherein the base has a plurality of second projections projecting into the cable insertion opening from the side edge of the base toward the cover, and wherein the first projections and the second projections project in a staggered manner, such that a sum of a projecting length of the first projections and a projecting length of the second projections is longer than a gap length of the cable insertion opening.

Abstract: A telecommunications closure includes a base, a cover coupled to the base, and a first interior volume defined between the cover and the base. The cover includes a compartment having an opening and defining a second interior volume. The telecommunications closure also includes a flexible telecommunications line having a first end located within the first interior volume and a second end located outside of the first interior volume. The second end of the telecommunications line has a connector for coupling to other telecommunications lines. A portion of the flexible telecommunications line passes through the opening of the compartment. The telecommunications closure also includes at least one sealing member positioned in the second interior volume of the compartment to seal the flexible telecommunications line in the opening.