Patent ID: 7959363

Claim:
An optical transceiver module for converting between an information containing electrical signal and a modulated optical signal transported over at least one optical fiber in the transceiver module comprising: at least one optical fiber coiled over at least a portion of its length; a physical support disposed in the transceiver module; a flexible substrate for securing said at least one coiled optical fiber to said support to enable said coiled fiber to bend from a first direction to a second opposite direction inside said transceiver module, wherein the coiled optical fiber provides a continuous optical path between the first direction and the second opposite direction; and an optical multiplexer mounted on said flexible substrate for receiving first and second optical fibers and multiplexing respective optical signals on said first and second optical fibers into a single multi-wavelength beam onto a single third optical fiber, wherein said optical multiplexer is selected from the group consisting of an arrayed waveguide grating and a multimode interference coupler.