Polarization insensitive optical communication device...

Details Polarization insensitive optical communication device... Polarization insensitive optical communication device...

H - Electricity

04

B

325/1

H04B 10/14 (2006.01) H04B 10/158 (2006.01)

Patent

CA 1293997

POLARIZATION INSENSITIVE OPTICAL COMMUNICATION DEVICE UTILIZING OPTICAL PREAMPLIFICATION Abstract A polarization insensitive optical device is disclosed which is capable of providing direct optical amplification of an input signal of unknown (and possibly varying) polarization. A polarization diversity technique is utilized wherein a polarization beam splitter (e.g., 10) is used to divide the incoming signal into orthogonal components of known polarization (TE,TM). The orthogonal components are then separately amplified, using a semiconductor laser(e.g., 16, 20) as the amplifying device. The amplified components are then recombined, either optically or electrically, to form the final output signal.

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