Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1996-10-22
1998-11-24
Negash, Kinfe-Michael
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359156, 359124, H04J 1406
Patent
active
058415572
ABSTRACT:
A method and apparatus for scrambling the polarization of signal lights combined into a wavelength division multiplexed signal light, to suppress non-linear optical effect and thereby improve transmission quality. For example, each signal light has a different polarization before being combined into a wavelength division multiplexed signal light. The polarization of the wavelength division multiplexed signal light can then be scrambled. Alternatively, the polarization of each signal light can be scrambled at a different scrambling frequency before being combined into the wavelength division multiplexed signal light.
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Naito Takao
Onaka Hiroshi
Otsuka Kazue
Terahara Takafumi
Fujitsu Limited
Negash Kinfe-Michael
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