Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2006-06-27
2006-06-27
Lee, John D. (Department: 2874)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S278000, C359S325000
Reexamination Certificate
active
07068412
ABSTRACT:
With respect to the relative intensity noise (RIN) for inputs to an optical modulator or the signal-to-noise ratio (SNR) for outputs therefrom, the optical modulator modulating coherent lights of different wavelengths obtained by slicing a spectrum of the multi-wavelength light, the shape of a spectrum of a multi-wavelength light is controlled so that predetermined RIN and SNR can be obtained in accordance with transmission system parameters (the type and distance of optical fibers, the number of repeaters), thus enabling design meeting a performance specification for a conventional transmission section using semiconductor lasers.
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Araya Katsuhiro
Fujiwara Masamichi
Kani Jun-ichi
Suzuki Ken'ichi
Teshima Mitsuhiro
Lee John D.
Nippon Telegraph and Telephone Corp.
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