Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1997-02-19
1999-12-21
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359124, 359133, 359134, 359161, 359173, 359181, 359182, H04B 1004, H04B 1012, H04J 1402
Patent
active
060057025
ABSTRACT:
An optical transmission device using return-to-zero optical pulses as transmission optical pulses, which is capable of enhancing a transmission distance as well as a wavelength range with satisfactory transmission characteristics and enabling an easy realization of the wavelength division multiplexing optical transmission. The optical transmission device is formed by an optical transmitter for transmitting transmission optical pulses by superposing digital data signals onto return-to-zero optical pulses, and a modulator for applying one of a phase modulation and a frequency modulation in synchronization with a transmission rate of the transmission optical pulses, to the transmission optical pulses transmitted by the optical transmitter. This optical transmission device can be utilized in forming a wavelength division multiplexing optical transmission apparatus and an optical transmission system.
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Akiba Shigeyuki
Edagawa Noboru
Morita Itsuro
Suzuki Masatoshi
Yamamoto Shu
Kokusai Denshin Denwa Kabushiki-Kaisha
Pascal Leslie
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