Abstract: Optical couplings systems, apparatus, and methods may include an optical cable coupling device, or spool, and one or more optical coupling features. The one or more optical coupling features may be configured to optically couple an optical cable and another optical cable, each of which are storable on the optical cable coupling device. The optical cable coupling device and optical cables may be used on a modular device (e.g., computing device, networking device, storage device, etc.). The optical cable coupling device may define a radius that less than about 200% the minimum bend radius of the optical cables.

Abstract: An apparatus includes a curved multimode polymer waveguide having at least one inflection point and a doped region being doped with an amplifying dopant. An optical pump source or electrical pump source is configured to excite the doped region and amplify the optical signal transmitting along the curved multimode polymer waveguide.

Abstract: Electro-optical circuit boards may include one or more recesses to provide stress relief between multiple layers of the electro-optical circuit boards during variations in applied temperature. The one or more recesses may be included in the substrate and/or the optical layer of the electro-optical circuit boards. The one or more recesses may also contain a compliant material disposed therein to improve the flexibility of the substrate and/or the optical layer. For example, the compliant material may disperse thermal expansion stress within the electro-optical circuit board.

Abstract: The exemplary systems, apparatus, structures, and methods may include an assembly including substrate, an optical waveguide, and an optical access associated with the optical waveguide. Light from the optical access may be measured along the optical waveguide. The coupling loss of the optical waveguide may be determined based on at least the light measurements from the optical access.

Abstract: Optical couplings systems, apparatus, and methods may include an optical cable coupling device, or spool, and one or more optical coupling features. The one or more optical coupling features may be configured to optically couple an optical cable and another optical cable, each of which are storable on the optical cable coupling device. The optical cable coupling device and optical cables may be used on a modular device (e.g., computing device, networking device, storage device, etc.). The optical cable coupling device may define a radius that less than about 200% the minimum bend radius of the optical cables.

Abstract: Optical connectors may include various portions, or structures, to provide a plurality of degrees of movement to optical ferrules. The optical ferrules may be linearly movable along one or more axes and rotationally moveable about one or more axes for alignment and coupling to corresponding optical ferrules. The optical connectors may be integrated with, or in conjunction with, other non-optical connectors such as electrical connectors, e.g., located on a drive carrier.

Abstract: Apparatuses that include an input and output waveguide; and a nested resonator including at least an external loop and a nested loop positioned entirely inside the external loop, each loop independently having a length that supports a single resonant wavelength, the external loop further including: an input interface configured to couple energy between the input waveguide and the nested resonator, an output interface configured to couple energy between the nested resonator structure and the output waveguide, and an internal interface, the external loop and the nested loop configured to couple energy there between via the internal interface.

Abstract: An optical printed circuit board having at least one optical interface on a surface, and a deformable dam structure provided on the optical printed circuit board adjacent to the at least one optical interface. The deformable dam structure has an absorbent portion for absorbing adhesive and a method or forming the same.

Abstract: An apparatus includes a polymer waveguide having a doped region, with amplifying dopant, separating a first un-doped region and a second un-doped region. The doped region being doped with an amplifying dopant. An optical pump source illuminates the doped region to allow light to transmit from the first un-doped region to the second un-doped region.

Abstract: An apparatus includes a polymer waveguide having a doped region, with amplifying dopant, separating a first un-doped region and a second un-doped region. The doped region being doped with an amplifying dopant. An optical pump source illuminates the doped region to allow light to transmit from the first un-doped region to the second un-doped region.

Abstract: Apparatuses that include an input and output waveguide; and a nested resonator including at least an external loop and a nested loop positioned entirely inside the external loop, each loop independently having a length that supports a single resonant wavelength, the external loop further including: an input interface configured to couple energy between the input waveguide and the nested resonator, an output interface configured to couple energy between the nested resonator structure and the output waveguide, and an internal interface, the external loop and the nested loop configured to couple energy there between via the internal interface.

Abstract: An optical printed circuit board having at least one optical interface on a surface, and a deformable dam structure provided on the optical printed circuit board adjacent to the at least one optical interface. The deformable dam structure has an absorbent portion for absorbing adhesive and a method or forming the same.

Abstract: The invention provides an amplification module for an optical printed circuit board, the optical printed circuit board comprising plural polymer waveguide sections from independent waveguides, each of the sections being doped with an amplifying dopant, wherein the plural waveguide sections are routed so as to pass through an amplification zone in which the plural polymer waveguide sections are arranged close or adjacent to one another, the amplification module comprising: a pump source comprising plural light sources arranged to provide independently controllable levels of pump radiation to each of the plural waveguide sections. In an embodiment, the amplification module also includes plural polymer waveguide sections corresponding to the plural polymer waveguides of the printed circuit board on which in use the amplification module is to be arranged, each of the sections being doped with an amplifying dopant.

Abstract: A method of manufacturing an optical printed circuit board and an optical printed circuit board. The method includes providing a support layer having one or more optical waveguides formed on the support layer, the waveguides having exposed interfaces. A film is provided on one or more of the exposed interfaces, wherein the film has a smoother outer surface than the waveguide interface.

Abstract: There is provided a method of making an optical polymer waveguide having an arbitrary refractive index profile, the method including: a) providing a first input optical beam having a first beam intensity profile and a second input optical beam having a second beam intensity profile; b) combining the first and second input optical beams to form an output optical beam having an output beam intensity profile; and c) forming the optical waveguide on a substrate by: exposing the optical materials of the waveguide to the output optical beam; and curing the optical materials using said output optical beam.

Abstract: The invention provides an optical waveguide and a method of making an optical waveguide. The waveguide has a curved section having an asymmetric refractive index profile, in which the refractive index varies asymmetrically across the waveguide cross-section in dependence on the radius of the curved section of the waveguide.

Abstract: An optical printed circuit board, including at least one optical waveguide for carrying optical signals on the optical printed circuit board; and a trench formed adjacent the at least one optical waveguide, wherein the trench contains a light absorptive material to absorb light that strays from the at least one waveguide.

Abstract: There is provided an optical waveguide comprising an optical core having transverse sides, the optical core extending along a curved path; an optical cladding on the transverse sides of the optical core, wherein the distribution of the optical cladding on the transverse sides of the optical core is asymmetric about the centre of the core.

Abstract: There is provided a method of making an optical polymer waveguide having an arbitrary refractive index profile, the method including: a) providing a first input optical beam having a first beam intensity profile and a second input optical beam having a second beam intensity profile; b) combining the first and second input optical beams to form an output optical beam having an output beam intensity profile; and c) forming the optical waveguide on a substrate by: exposing the optical materials of the waveguide to the output optical beam; and curing the optical materials using said output optical beam.

Abstract: The invention provides an optical printed circuit board, comprising: plural polymer waveguide sections from independent waveguides, each of the sections being doped with an amplifying dopant; an optical pump source to pump the plural polymer waveguide sections, wherein the plural waveguide sections are arranged close or adjacent to one another such that a the optical pump source is able to pump plural of the optical waveguide sections.