Patent ID: 7359642

Claim:
In an optical transceiver converting and coupling an information-containing electrical signal with an optical fiber having a housing including a fiber optic connector adapted for coupling with an external optical fiber for transmitting and/or receiving an optical communications signal, a modular, hermetically sealed receiver subassembly for converting between an information-containing optical signal and a modulated electrical signal corresponding to the optical signal, the receiver subassembly comprising: an optical demultiplexer within the modular, hermetically sealed receiver subassembly, said optical demultiplexer for receiving a multi-wavelength optical signal having a plurality of information-containing signals each with a different predetermined wavelength, and for demultiplexing the optical signal into distinct optical beams corresponding to said predetermined wavelengths; and a photodiode array within the modular, hermetically sealed receiver subassembly, said photodiode array in the path of said optical beams and functioning to convert the respective optical signals into electrical signals.