Abstract: In some implementations, an optical system includes an optical emitter, a locking apparatus, wherein the locking apparatus comprises a narrow bandwidth transmission filter (NBTF) and a partial reflection surface, wherein the locking apparatus is aligned to an optical output of the optical emitter, and wherein the locking apparatus is configured to provide optical feedback to the optical emitter.

Abstract: A laser module includes a laser submodule, a polarization beam combiner (PBC), a beam rotator, a grating, and an output fiber (e.g., each disposed on an internal surface of a floor of the laser module). The laser submodule is configured to emit an array pattern of beams, which the PBC is configured to combine into a vertical stack pattern of beams, which the beam rotator is configured to rotate into a horizontal stack pattern of beams, which the grating is configured to combine into an overlapped pattern of beams, which the output fiber is configured to emit. The vertical stack pattern of beams, the horizontal stack pattern of beams, and the overlapped pattern of beams are to transmit through the laser module parallel to a single common plane (e.g., that is parallel to the internal surface of the floor of the laser module).

Abstract: In some implementations, an emitter module may include an emitter array that includes multiple emitters, and an optical fiber that includes multiple cores within a single cladding. The emitter array may be optically coupled to a tip of the optical fiber such that each emitter, of the multiple emitters of the emitter array, is optically coupled to a respective core of the multiple cores of the optical fiber. The optical fiber may include an integral lens at the tip of the optical fiber. The integral lens at the tip of the optical fiber may be in alignment with the multiple cores of the optical fiber.

Abstract: In some implementations, an emitter module may include an emitter array that includes multiple emitters, and an optical fiber that includes multiple cores within a single cladding. The emitter array may be optically coupled to a tip of the optical fiber such that each emitter, of the multiple emitters of the emitter array, is optically coupled to a respective core of the multiple cores of the optical fiber. The optical fiber may include an integral lens at the tip of the optical fiber. The integral lens at the tip of the optical fiber may be in alignment with the multiple cores of the optical fiber.

Abstract: An optical sub assembly can include a distributed feedback (DFB) tunable laser and an optical modulator. Wavelength selection and phase adjustment portions of the DFB laser, as well as an electro-optic (EO) modulator can be formed from polymer waveguides including hyperpolarizable chromophores disposed on a single substrate.