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1. (WO2018226693) TECHNIQUES POUR COUPLAGE OPTIQUE INDIRECT ENTRE UN PORT D'ENTRÉE/SORTIE OPTIQUE D'UN BOÎTIER DE SOUS-ENSEMBLE ET UN DISPOSITIF DE PHASAR (AWG) DISPOSÉ À L'INTÉRIEUR DE CELUI-CI
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

What is claimed is:

1. An optical transceiver comprising:

a housing comprising a plurality of sidewalls extending from a first end to a second end along a longitudinal axis, wherein the plurality of sidewalls define a cavity having a first longitudinal center line;

an optical multiplexing device at least partially disposed within the cavity and having an input port with a first optical center line;

a first optical coupling port at this first end of the housing, the optical coupling port having a second optical center line;

a first optical fiber having a first end optically coupled to the optical coupling port and a second end optically coupled to the multiplexing device; and

wherein the first optical center line of the input of the multiplexing device is laterally offset by a distance D from the second optical center line of the optical coupling port.

2. The optical transceiver of claim 1, wherein the optical multiplexing device abuts a distal end wall of the housing relative to the first optical coupling port.

3. The optical transceiver of claim 1, wherein the housing comprises a transmitter optical subassembly (TOSA) module, and wherein the optical multiplexing device comprises a planar lightwave circuit (PLC) splitter.

4. The optical transceiver of claim 3, wherein the optical multiplexing device includes a reversed planar lightwave circuit (PLC) splitter including a plurality of input ports to receive channel wavelengths from associated laser assemblies and an output port to output a signal having multiple channel wavelengths, and wherein the first optical fiber is optically coupled to the output port.

5. The optical transceiver of claim 4, further comprising a plurality of laser assemblies disposed in the housing, each of the plurality of laser assemblies configured to output a different channel wavelength, and wherein each of the laser assemblies is optically coupled to a respective port of the plurality of input ports through an optical fiber.

6. The optical transceiver of claim 1, wherein the optical multiplexing device comprises an arrayed waveguide grating (AWG) device.

8. The optical transceiver of claim 1, wherein the first optical fiber includes one or more bends to route the first optical fiber between the first optical coupling port and the optical multiplexing device.

9. The optical transceiver of claim 1, wherein the lateral offset D measures at least 2 millimeters.

10. The optical transceiver of claim 1, wherein the transceiver is a Small Form-factor Pluggable (SFP) transceiver module.

11. A multi-channel optical transceiver comprising:

a transmitter housing;

a plurality of transmitter optical subassembly (TOSA) modules located in the transmitter housing for transmitting a plurality of optical signals at different respective channel wavelengths;

an optical output port disposed at end of the transmitter housing for optically coupling to an external fiber; and

an optical multiplexer located at a distal end of the transmitter housing and optically coupled to the TOSA modules for multiplexing the plurality of optical signals into

a multiplexed optical signal including the different channel wavelengths, wherein the optical multiplexer includes a plurality of mux input ports optically coupled to the respective TOSA modules with input optical fibers for receiving the respective optical signals and a mux output port optically coupled to the optical output port,

wherein the mux output port is optically coupled to the optical output port via an intermediate optical fiber.

12. The multi-channel optical transceiver of claim 11, wherein the optical output port has a first optical center line and the mux output port has a second optical center line, and wherein the first optical center line is not coaxially aligned with the second optical center line.

13. The multi-channel optical transceiver of claim 11, the optical multiplexer comprises a planar lightwave circuit (PLC) splitter.

14. The multi-channel optical transceiver of claim 11, wherein the intermediate optical fiber includes one or more bends to route the first optical fiber between the first optical coupling port and the optical multiplexing device.

15. The multi-channel optical transceiver of claim 11, wherein the transceiver is a Small Form-factor Pluggable (SFP) transceiver module.