A waveguide support and reflector member is provided for optically connecting a first optical component having at least one optical waveguide including an optical axis with a second optical component. The waveguide support and reflector member includes a body having a waveguide retention section and a reflector section. The waveguide retention section is configured to support the first optical component and defines an optical plane along which each optical waveguide is disposed upon positioning the optical component at the waveguide retention section. The reflector section has an optical reflector surface aligned with the optical plane and is configured to optically connect the at least one optical waveguide with the second optical component. An optical assembly incorporating a waveguide support and reflector member and a sheet metal blank for forming a waveguide support and reflector member are also provided. An in-line waveguide support and alignment member is further provided.

Two-port optical retro-reflectors with high isolation and high return loss are described. Such retro-reflectors are designed to increase the number of optical filtering using one or more filters uniquely disposed to increase the isolation and return loss.

This optical receptacle has a first optical surface, a reflection surface, a second optical surface, a light separation part, and a third optical surface. On the first optical surface, light from a photoelectric conversion element is incident. The reflection surface reflects the light incident on the first optical surface. The second optical surface allows the light reflected by the reflection surface to be emitted toward an end surface of an optical transmission body. The light separation part separates the light reflected by the reflection surface, into monitor light and signal light. The third optical surface allows the monitor light to be emitted toward a detection element. The light separation part includes divided reflection surfaces and divided transmission surfaces. At least one of the divided transmission surfaces includes one or more widened portions each having a width larger than those of the other divided transmission surfaces.

A BOSA device having an adjustable wavelength in two directions comprises a signal transmitter section and a signal receiver section, wherein the signal transmitter section sequentially includes a laser (1-1), a semiconductor optical amplifier (SOA) (3-1), a splitter (4-1), a data upload and download port (5-1), and a first TEC temperature control module (9-1) to control temperature of the laser (1-1) so as to adjust its output wavelength, and the signal receiver section sequentially includes a filter (7-1), a photo detector (8-1), and a receiving end driving device to change an angle of the filter (7-1) with respect to the optical path so as to make a passing wavelength of the filter adjustable. The first TEC temperature control module (9-1) controls temperature of the laser (1-1), and the receiving end driving device drives the filter (7-1) to change an angle of the filter with respect to the optical path.

The present invention relates to an optical combiner and a manufacturing method thereof, and a plurality of light source units emitting an optical signal. A reflection unit having a plurality of reflection surfaces disposed on a path of the optical signal and reflecting the optical signal so as to face toward an optical fiber, and an optical fiber holder fixing the optical fiber at a position where the optical signal reflected by the plurality of reflection surfaces is focused is included. An optical combiner and a manufacturing method thereof in which an optical fiber holder includes a plurality of division members that are radially disposed with respect to a center part of the reflection unit are disclosed.

This optical receptacle has a first optical surface, a reflection surface, a second optical surface, a light separation part, and a third optical surface. On the first optical surface, light from a photoelectric conversion element is incident. The reflection surface reflects the light incident on the first optical surface. The second optical surface allows the light reflected by the reflection surface to be emitted toward an end surface of an optical transmission body. The light separation part separates the light reflected by the reflection surface, into monitor light and signal light. The third optical surface allows the monitor light to be emitted toward a detection element. The light separation part includes divided reflection surfaces and divided transmission surfaces. At least one of the divided transmission surfaces includes one or more widened portions each having a width larger than those of the other divided transmission surfaces.

Light is directed from a light source at a coupling surface of a slider into a delivery waveguide of the slider. The delivery waveguide couples a first portion of the light into a near-field transducer at a media-facing surface. A second portion of the light is coupled into a splitter waveguide. The second portion of light is detected to perform an active alignment of the light source on the slider.

The variable optical splitter system includes a V-shaped optical splitter for use in planar lightwave circuits (PLCs), photonic integrated circuits (PICs), etc. The V-shaped optical splitter has first and second optically transmissive branches sharing a common optically transmissive base, where the first and second optically transmissive branches each define an optical waveguide. The first and second optically transmissive branches are symmetrically angled about a central longitudinal axis. A light source directs a light beam to a laterally extending input surface of the optically transmissive base. The light beam travels parallel to the central longitudinal axis. The optical power splitting ratio is directly proportional to the input beam's displacement from the central longitudinal axis, permitting selective tuning of the ratio during design of the splitter.

A 33 multi-mode interference coupling device having a length L and a width W, a center input port between a pair of outer input ports, where each outer input port is displaced from the center input port by a distance W/3, and a center output port between a pair of outer output ports, where each outer output port is displaced from the center output port by a distance W/3, where the device is supports C.sub.bar, C.sub.cen, and a C.sub.x coupling coefficients therein, when the outer input ports are equally excited with an input signal having a 180 phase difference, C.sub.cen from each outer input port destructively interferes when the propagation length L is an integer number of L.sub./2, where the device outputs equal intensity laser modes from each outer output port when the propagation length is an integer multiple of L.sub./2.

Described herein is a multiplexer/demultiplexer optical device (100) comprising: a first beam-splitter cube (BS1); a second beam-splitter cube (BS2) optically coupled to the first splitter (BS1); a first Porro-prism reflector (PR1), which is optically coupled to the second splitter (BS2); and a second Porro-prism reflector (PR2), which is optically coupled to the second splitter (BS2) and is structured for introducing into optical beams that traverse it a phase delay depending upon an orbital angular momentum of the optical beams and upon an orientation of the second reflector. The device is a Michelson interferometer structured for obtaining constructive/destructive interference such as to multiplex/demultiplex on/from corresponding input/output ports, on the basis of values of orbital angular momentum, an optical beam comprising a plurality of concentric optical beams with cylindrical symmetry having different values of orbital angular momentum.