Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2010: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2009: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2008: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
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Research Abstract |
Regeneration of multi-wavelength-channel signals, using saturation of four-wave mixing in fiber, was studied. Because the signal phase is almost preserved in this scheme, it is suitable for amplitude noise reduction of phase-modulated signals. In this study, (1) simultaneous noise reduction of 10Gbps x 3ch differential phase shift keying signals and consequent reduction of nonlinear phase noise, (2) regeneration of 10Gbps x 2ch OOK signals using higher-order four-wave mixing, and (3) a scheme of adaptive delay control for achieving suitable time multiplexing of channels, were demonstrated.
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