Patent ID: 9319142
Filing Date: 2016-04-19
CPC Classification: G02B,H04B

Claim Text:
1. An optical transceiver with a function of a full-duplex optical communication for a pair of optical fibers, comprising: a laser module having a laser housing that encloses a wavelength tunable laser diode (LD) including a pair of facets; a transmitter module having a transmitter housing that encloses an optical transmitter, the optical transmitter transmitting an outgoing optical signal to the one of the optical fibers by modulating a phase of a laser beam output from one of the facets of the wavelength tunable LD, and a receiver module having a receiver housing that encloses an optical receiver, the optical receiver receiving an incoming optical signal from another of the optical fibers, the incoming optical signal being modulated in a phase thereof, the optical receiver extracting data contained in the incoming optical signal by multiplexing the incoming optical signal with another laser beam output from another of the facets of the wavelength tunable LD; a first inner fiber and a second inner fiber, the first fiber coupling the laser module with the transmitter module, the second inner fiber coupling the laser module with the receiver module, wherein the first inner fiber and the second inner fiber each have at least one loop between the laser module and the transmitter module, and between the laser module and the receiver module, respectively, wherein the laser housing, the transmitter housing, and the receiver housing are separated from each other, and wherein the first and second inner fibers are polarization maintaining fibers.