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A massive port count WSS using planar lightwave circuit as optical input/output ports is proposed. We demonstrate a 1x93 LCOS-based WSS with less than 9.0 dB insertion loss and typically 37.0 GHz 0.5 dB passband width.

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Raman amplification utilizing the second Stokes line of 1.32-wm Nd:YAG laser light in a single-mode silica fiber was observed. Raman gains of 24 dB have been obtained for l?O-/~m laser diode light in the low-loss region. In addition, the signal-to-noise characteristics of Raman amplification using the second Stokes line was investigated. As a result, it became clear that the SIN ratio was inferior to that in 1st Stokes line by about one order of magnitude.