Abstract: A multi-channel laser-to-external modulator array coupling enabled co-packaged optics (CPO) architectures. The CPO module integrates optical and electrical communication devices on a first-level substrate near a host switch ASIC, enabling high-bandwidth interconnects with reduced power consumption and minimized electrical losses. Configurations include remote lasers with blindmate optical connectors for safe replacement and integrated on-chip lasers for enhanced reliability in WDM systems. The module uses hybrid integrated modulators made of materials such as TFLN, InP, EO polymers, KTP, and BaTiO3. The optical engine, comprising a transmitter and receiver, connects via MPO connectors for efficient routing. The design supports efficient coupling and thermal management, suitable for switches, network interface cards, and AI/machine learning ASICs.

Abstract: An integrated electro-optic (EO) modulator implemented on a vertical coupling platform. It features inverse taper mode converters to match spot sizes with lasers or optical fibers, microreflectors for redirecting optical paths, and microlenses for coupling to and from modulator waveguides. The modulator may be either a bulk LiNbO3 modulator or a hybrid thin-film LiNbO3 modulator, where an electro-optical modulation layer is bonded to a cladding layer overlying a substrate. A modulation zone waveguide is optically coupled to the electro-optical modulation layer and integrated with the waveguiding structure embedded in the cladding layer.

Abstract: Various thin film modulator based hybrid-integrated electro-optic (EO) components compatible with 2.5D, 3D, and integrated laser 3D co-packaged optics integration technique. The hybrid-integrated electro-optic (EO) components use a glass core substrate to route optical signals and electrical signals between devices mounted directly or indirectly to the glass core substrate. The optical signal routing path within the glass core substrate may include one or more optical via holes, one or more mirror or reflectors, one or more lenses, high index waveguide, mode spot or field converters, and optical couplers including inverse tapered and tapered high index waveguides. The electrical signal routing paths within the glass core substrate may include a set of metal layers and a set of metallized via holes.

Abstract: An optically isolated lightwave current sensor including a control circuit, including: a light source configured to generate an input light beam; and a bias signal generator configured to generate an optical bias signal; a sensor head, including: an optical-to-electrical signal converter configured to convert the optical bias signal into a first electrical bias signal; a phase polarization modulator configured to phase modulate a linear polarization of at least one second light beam based on the first electrical bias signal, wherein the at least one second light beam is based on the input light beam; and an optical fiber coil optically coupled to the phase polarization modulator; and at least one optical fiber configured to route the input light beam and the optical bias signal from the control circuit to the sensor head.

Abstract: A compact optical device, such as an optical transmitter or transceiver, including a folded configuration, where an optical signal generated by a laser source propagates in a first direction, then is redirected in an orthogonal direction, and then redirected again to propagate in a second direction opposite the first direction. In accordance with the folded configuration, the optical signal from the laser source is coupled to a Mach-Zehnder interferometer (MZI) modulator that includes a thin-film lithium niobate (TFLN) waveguide coupled to a radio frequency (RF) transmission line to produce an RF signal modulated optical signal for remote transmission.

Abstract: An optical signal transmitter includes a laser source configured to generate light with different wavelengths, respectively; a wavelength division (WD) demultiplexer configured to redirect the light in different directions based on the different wavelengths, respectively; and a lens array including an array of lenses configured to collimate the light from the WD demultiplexer for transmission in different directions, respectively. The optical signal transmitter may be implemented in a light detection and ranging (LIDAR) apparatus. The optical signal transmitter may further include a 1×N splitter and a set of WD demultiplexers to increase the number of distinct optical signal transmissions.

Abstract: An optical signal transmitter configured to emit wavelength-distinct optical signals along distinct directions to provide a field scanning effect without requiring moving parts to effectuate the scanning. In one implementation, the optical signal transmitter includes a laser source for generating an optical signal including a set of distinct wavelengths, an optical amplifier configured to amplify the optical signal, a wavelength splitter configured to generate a set of optical signals consisting of distinct wavelengths, respectively, and a set of emission ports for emitting the set of optical signals in different directions. In another implementation, the wavelength splitting occurs at the set of emission ports. In yet another implementation, two stages of wavelength splitting are provided. The optical signal transmitter may be implemented in a LIDAR system for ascertaining information concerning objects-of-interests.

Abstract: A fiber-based accelerometer (FAC) detector includes a base; first and second flexures mechanically coupled to the base; first and second masses mechanically coupled to the first and second flexures, respectively; and a fiber Bragg grating (FBG) fiber mechanically coupled to the first and second masses, wherein the first and second flexures and the first and second masses are configured to move in response to a force and/or acceleration acting upon the first and second masses to produce a compression or expansion of the first FBG fiber.

Abstract: An optical-based system for sensing parameters of a structure or machine for monitoring the health of the structure or machine. The optical-based system includes a set of optical fibers, each optical fiber including a set of fiber Bragg grating (FBG) sensors for sensing a set of parameters of the object; a set of interrogators configured to generate a set of incident optical signals for transmission via the set of optical fibers, respectively, receive a set of reflected optical signals from each of the optical fibers of the set, and generate a set of data related to sensed parameters of the object based on the set of reflected optical signals; and a controller configured to control the set of interrogators. Via a user interface or a remote computer on a cloud, sensing instructions may be provided to the controller, and sensed data and other information may be received from the controller.

Abstract: An optical signal transmitter includes a laser source configured to generate light with different wavelengths, respectively; a wavelength division (WD) demultiplexer configured to redirect the light in different directions based on the different wavelengths, respectively; and a lens array including an array of lenses configured to collimate the light from the WD demultiplexer for transmission in different directions, respectively. The optical signal transmitter may be implemented in a light detection and ranging (LIDAR) apparatus. The optical signal transmitter may further include a 1xN splitter and a set of WD demultiplexers to increase the number of distinct optical signal transmissions.

Abstract: An optical signal transmitter configured to emit wavelength-distinct optical signals along distinct directions to provide a field scanning effect without requiring moving parts to effectuate the scanning In one implementation, the optical signal transmitter includes a laser source for generating an optical signal including a set of distinct wavelengths, an optical amplifier configured to amplify the optical signal, a wavelength splitter configured to generate a set of optical signals consisting of distinct wavelengths, respectively, and a set of emission ports for emitting the set of optical signals in different directions. In another implementation, the wavelength splitting occurs at the set of emission ports. In yet another implementation, two stages of wavelength splitting are provided. The optical signal transmitter may be implemented in a LIDAR system for ascertaining information concerning objects-of-interests.

Abstract: An optical-based system for sensing parameters of a structure or machine for monitoring the health of the structure or machine. The optical-based system includes a set of optical fibers, each optical fiber including a set of fiber Bragg grating (FBG) sensors for sensing a set of parameters of the object; a set of interrogators configured to generate a set of incident optical signals for transmission via the set of optical fibers, respectively, receive a set of reflected optical signals from each of the optical fibers of the set, and generate a set of data related to sensed parameters of the object based on the set of reflected optical signals; and a controller configured to control the set of interrogators. Via a user interface or a remote computer on a cloud, sensing instructions may be provided to the controller, and sensed data and other information may be received from the controller.

Abstract: A fiber-based accelerometer (FAC) detector includes a base; first and second flexures mechanically coupled to the base; first and second masses mechanically coupled to the first and second flexures, respectively; and a fiber Bragg grating (FBG) fiber mechanically coupled to the first and second masses, wherein the first and second flexures and the first and second masses are configured to move in response to a force and/or acceleration acting upon the first and second masses to produce a compression or expansion of the first FBG fiber.

Abstract: Optical communication system apparatus and methods of operating an optical communications system is described. The system advantageously may utilize existing optical fiber networks and provide significantly increased channel capacity. In accordance with one aspect of the invention the system apparatus provides for a plurality of communications channels and a processor unit receives requests for allocation of one or more channels from a node coupled to the optical communications system. The system apparatus dynamically allocates one or more channels selected from unused channels.

Abstract: Optical communication system apparatus and methods of operating an optical communications system is described. The system advantageously may utilize existing optical fiber networks and provide significantly increased channel capacity. In accordance with one aspect of the invention the system apparatus provides for a plurality of communications channels and a processor unit receives requests for allocation of one or more channels from a node coupled to the optical communications system. The system apparatus dynamically allocates one or more channels selected from unused channels.

Abstract: A switched optical wavelength selective reflector includes a 1×n bi-directional optical switch coupled to a plurality of wavelength selective reflective filters.

Abstract: Optical communication system apparatus and methods of operating an optical communications system is described. The system advantageously may utilize existing optical fiber networks and provide significantly increased channel capacity. In accordance with one aspect of the invention the system apparatus provides for a plurality of communications channels and a processor unit receives requests for allocation of one or more channels from a node coupled to the optical communications system. The system apparatus dynamically allocates one or more channels selected from unused channels.

Abstract: A method of manufacturing an integrated optic device having at least one waveguide formed in a surfaced thereof is described. The waveguide is formed utilizing a two-step proton exchange process in which the substrate is bathed in a strong acid and then subjected to a plurality of annealing cycles.

Abstract: A variable chirp optical modulator is provided in which an optical waveguide is split for part of its length into first and second waveguide arms. Electrode pairs are utilized to provide modulating electric fields in a portion of the first and second waveguide arms. The optical lengths of the portions of the first and second waveguide arms that are subject to the modulating electric fields are different and are selected to provide a predetermined level of chirp. By controlling the optical power split from the optical waveguide to the first and second arms, the chirp is varied from the predetermined level.

Abstract: A variable chirp optical modulator is provided. An optical waveguide is split for part of its length into first and second waveguide arms. Electrode pairs are positioned to be proximate a first portion of corresponding waveguide arms. The lengths of each of the electrodes are different and are selected to provide a predetermined level of chirp.