Abstract: Embodiments of the disclosure are directed to a fiber optic apparatus for retrofit fiber optic connectivity. The fiber optic apparatus is configured to reduce the size and footprint of a typical fiber optic cabinet for retrofit deployment within existing copper infrastructure, while allowing a user to provide and manage fiber optic network connections between a network provider and a plurality of subscribers. In an exemplary embodiment, the fiber optic apparatus decreases width by vertically aligning features of the fiber optic apparatus, and decreases depth by angled mounting of splitter parking and horizontal positioning of vertically stacked ribbon-fanout kit (RFK) sets. Further, the fiber optic apparatus includes flexible tubing attached to a detachable strain relief bracket configured for removal the detachable strain relief bracket from the frame and reattachment to the telecommunications cabinet to facilitate flexibility in mounting of the fiber optic apparatus and fiber deployment.

Abstract: An optical fiber cable includes: a core; an outer filling disposed outside the core; and a sheath that covers the core and the outer filling. The core includes: optical fibers; an inner filling; and a wrapping tube that wraps the optical fibers and the inner filling. The outer filling and the inner filling absorb water.

Abstract: The present invention therefore provides a method of splicing optical fibers. First, a first optical fiber and a second optical fiber are provided, wherein a core diameter of the first optical fiber is smaller than a core diameter of the second optical fiber. After performing a hydrogen loading treatment for the first optical fiber; a thermal expansion core (TEC) treatment is performed for the first optical fiber and the second optical fiber to match the mode-field (MF) of the first optical fiber and the second optical fiber at the fused section between the first optical fiber and the second optical fiber. The present invention further provides a spliced optical fiber, including a first optical fiber part, a second optical fiber part, and a fused section.

Abstract: An optical component includes: a substrate; a lens formed on a first principal surface of the substrate; and a vortex profile formed on a surface of the lens.

Abstract: A method of transfer printing. The method comprising: providing a precursor photonic device, comprising a substrate and a bonding region, wherein the precursor photonic device includes one or more alignment marks located in or adjacent to the bonding region; providing a transfer die, said transfer die including one or more alignment marks; aligning the one or more alignment marks of the precursor photonic device with the one or more alignment marks of the transfer die; and bonding at least a part of the transfer die to the bonding region.

Abstract: Structures for a waveguide coupler and methods of fabricating a structure for a waveguide coupler. A first waveguide core has a first width, a second waveguide core has a second width less than the first width, and a waveguide coupler includes first and second tapers that are positioned between the first waveguide core and the second waveguide core. The second taper is directly connected with the first taper, and the first and second tapers connect the first and second waveguide cores.

Abstract: A female hardened fiber optic connector for terminating an end of a fiber optic cable that is suitable for making an optical connection with another hardened cable assembly and cable assemblies using the same are disclosed. The female hardened fiber optic connector includes a connector assembly, a crimp body, a connector sleeve, and female coupling housing. The connector sleeve has one or more orientation features that cooperate with one or more orientation features inside the female coupling housing. The crimp body has a first shell and a second shell for securing the connector assembly at a front end of the shells and a cable attachment region rearward of the front end for securing a cable.

Abstract: An array of dust shutter plate connected to a body by a flexible bridge member. The body holds one or more dust shutter plate, a corresponding bridge member, and an actuator that opens the dust shutter or moves the dust shutter plate from a closed position covering an opening in the alignment sleeve holder to an open position, so the connector ferrule can be accepted into an opening at one end of the alignment sleeve holder.

Abstract: An optical modulator includes an optical modulation element having a plurality of signal electrodes; a housing that houses the optical modulation element; a plurality of signal input terminals each of which inputs an electrical signal to be applied to each of the signal electrodes; and a relay substrate on which a plurality of signal conductor patterns that electrically connect each of the signal input terminals to each of the signal electrodes, and a plurality of ground conductor patterns are formed, in which the relay substrate is housed in the housing, and at least one input side ground conductor pattern extending from at least one of the ground conductor patterns is formed on an input side surface having a side on which an electrical signal output from the signal input terminal is input to the signal conductor pattern as one side.

Abstract: Examples herein relate to optical systems. In particular, implementations herein relate to an optical system including an optical transmitter configured to transmit optical signals. The optical transmitter includes a first optical source configured to emit light having different wavelengths, a waveguide, and an optical coupler configured to couple the emitted light from the first optical source to the waveguide. The optical transmitter further includes an array of two or more second optical sources coupled to the waveguide, each of the two or more second optical sources configured to be injection locked to a different respective wavelength of the emitted light transmitted via the waveguide from the first optical source. In some implementations, the first optical source is a master comb laser and the two or more second optical sources are slave ring lasers.

Abstract: Aspects and techniques of the present disclosure relate to a fiber optic connector assembly including a fiber optic connector with a front end and a back end. A ferrule positioned at the front end. The ferrule has a distal end face with a central region and recessed regions on opposite sides of the central region. The assembly includes a dust cap mounted on the ferrule. The dust cap has an open end and an opposite closed end. The fiber optic connector assembly also includes a tape member that covers the central region of the ferrule. The tape member can be secured to the dust cap such that when the dust cap is removed, the tape member simultaneously comes off with the dust cap.

Abstract: A pluggable miniature optical passive device comprises a casing (30), an optical device (40) is mounted in the casing (30), a first end of the optical device (40) is provided with a first ceramic ferrule (43). At least one fiber core (432) is provided in the first ceramic ferrule (43), a first end (41) of the first ceramic ferrule (43) extends out of the casing (30). A second end (42) of the first ceramic ferrule (43) is positioned in the optical device (40), and the second end (42) of the first ceramic ferrule (43) is coated with an antireflection film, a lens (45) is provided close to the second end (42) of the first ceramic ferrule (43), the lens (45) is positioned in the optical device (40). At least one optical fiber is further provided in the optical device (40), a first end of the optical fiber is provided at a side close to the lens (45) and away from the first ceramic ferrule (43), a light beam incident in the optical fiber of the optical device (40) via the ceramic ferrule (43) and the lens (45).

Abstract: The performance of an electro-optic modulator depends in part on the capacitance, the inductance, the electric field distribution, and the signal insertion loss of a microwave transmission line that modulates the refractive index of a waveguide via the electro-optic effect. Conventional electro-optic modulators are typically unable to improve one of these properties without negatively affecting other properties, resulting in lower performance. These shortcomings may be overcome, in part, by the inclusion of capacitive structures to decouple these properties. The capacitive structure may include a fang and/or a hook to tune the capacitance and the electric field distribution without appreciably changing the inductance or the signal insertion losses.

Abstract: A fiber optic connector is spliced to an optical fiber provided by a sheathed optical fiber and an optical fiber pigtail. The connector houses a protective sleeve that secures the splice area from damage due to movement of optical fibers during connecter use. The protective sleeve retains the sheathed optical fiber at a first end and secures the protective sleeve to a distal end of a ferrule flange assembly at a second end.

Abstract: Integrated optical devices and methods of forming the same are disclosed. A method of forming an integrated optical device includes the following steps. A substrate is provided. The substrate includes, from bottom to top, a first semiconductor layer, an insulating layer and a second semiconductor layer. The second semiconductor layer is patterned to form a waveguide pattern. A surface smoothing treatment is performed to the waveguide pattern until a surface roughness Rz of the waveguide pattern is equal to or less than a desired value. A cladding layer is formed over the waveguide pattern.

Abstract: A fringe projector apparatus includes: a phase modulator having a first waveguide, a second waveguide, and a plurality of heaters including a first heater and a second heater, wherein the first and second waveguides and the plurality of heaters are provided on a single substrate, and wherein the first heater heats the first waveguide and the second heater heats a position away from the first waveguide; a light source that generates a light beam to be input to the first waveguide and the second waveguide; and a controller that controls a phase difference between the first waveguide and the second waveguide by changing an electric power consumption of the first heater under a condition that a total electric power consumption of the plurality of heaters is constant.

Abstract: The present invention relates to a fibre optic fusion splicing technique, in particular to a fibre optic fusion splicer for reliable and stable fibre optic fusion splicing, that is characterized by comprising: an alignment part for fixing and aligning first and second optical fibres that are to be fusion spliced; a fusion splicing module having an electrode bar for fusion splicing the first and second optical fibres that are fixed to and aligned in the alignment module; an optical module for photographing the aligned state of the first and second optical fibres aligned by the alignment module, and the fusion-spliced state of the first and second optical fibres fusion-spliced by the fusion splicing module; a support part in which the fusion splicing module and the optical module are mounted; and a lift module for moving the support part up and down.

Abstract: Provided is a SIS-type electro-optic modulator capable of realizing highly efficient optical coupling with a rib-type Si waveguide, improving modulation efficiency, realizing reduction of electric capacity and lead-out resistance in stacked semiconductor layers. The modulator includes a SIS junction constituted by first and second semiconductor layers having different type of conductivity and a dielectric layer interposed therebetween, wherein an electrical signal from electrodes coupled to the first and second semiconductor layers causes free carriers accumulate, deplete or invert on both sides of the dielectric layer, thereby modulating a free carrier concentration felt by an optical signal electric filed, light having a polarization component orthogonal to the width direction of the SIS junction is incident on the dielectric layer, and the width of the SIS junction is ?/neff or less (? is the wavelength of the incident light and neff is an effective refractive index of the modulator to the incident light).

Abstract: There is provided an opto-electric hybrid board with slight or no warpage. An opto-electric hybrid board according to the present disclosure includes an electric circuit board and an optical waveguide formed in a stacked manner on one surface of the electric circuit board. The optical waveguide includes an under cladding layer, cores for an optical path formed on a front surface of the under cladding layer, and over cladding layer formed on the front surface of the under cladding layer so as to cover the cores. A groove for prevention of warpage which has a bottom positioned below a top surface of the cores is formed at least in a front surface portion of the over cladding layer.

Abstract: A method, apparatus, and system are disclosed for increasing light extraction efficiency in a light guide optical system. The light guide optical system may comprise a light emitting source. The light emitting source may be, for example, a light-emitting diode (LED) or plurality of LEDS. The light guide optical system may also comprise a light guide plate (LGP). The LGP may include light extraction features located on surfaces of the LGP. The LGP may also include a shaped injection surface on an input surface of the LGP. The shaped injection surface may be angled to deviate near-parallel light emitted from the LED to enable the near-parallel light emitted from the LED to be extracted from the LGP via the light extraction features. The shaped injection surface may be a split edge (i.e., a V-groove) or a curved edge.