Multi-wavelength optical signal receiving apparatus and method

摘要

A multi-wavelength optical signal receiving apparatus receives a multi-wavelength optical signal, demultiplexes the received optical signal to convert into an electric signal. The multi-wavelength optical signal receiving apparatus includes a demultiplexing part including a demultiplexer configured to divide the received multi-wavelength optical signal into a plurality of optical signals by wavelength, a photoelectric conversion part to convert the optical signals into electric signals and amplify the electric signals, and at least one lower securing plate configured to couple the parts by an active alignment method. Accordingly, an additional polishing or coating process is not required, which simplifies the manufacturing process, and it is possible to manufacture the apparatus in blocks, thereby increasing mass-productivity.

主权项

1. A multi-wavelength optical signal receiving apparatus comprising:
a demultiplexing part configured to comprise a demultiplexer to divide a received multi-wavelength optical signal into a plurality of optical signals by wavelength; a photoelectric conversion part configured to comprise a signal converter and a signal amplifier, wherein the signal converter is configured to comprise a plurality of photoelectric conversion devices to receive optical signals collected according to wavelength and to convert the received optical signals into electrical signals, and a first circuit board onto which the plurality of photoelectric conversion devices are bonded at such locations that the plurality of photoelectric conversion devices can receive the collected optical signals and the signal amplifier is configured to comprise an amplification circuit to amplify the electric signals and a second circuit board onto which the amplification circuit is bonded and secured at a fixed location; and at least one lower securing plate fixedly located onto a lower surface of each of the demultiplexing part and the photoelectric conversion part to couple the demultiplexing part and the photoelectric conversion part to each other, by an active alignment, at locations where an amount of coupling between the optical signals is maximized, wherein the photoelectric conversion part is configured to further comprise an optical bench located at a side of the first circuit board and at a side of the second circuit board to allow side walls of the first and the second circuit boards to be coupled in a perpendicular manner.