Claims
- 1. An optical signal modulation method for high-speed transmission systems, comprising:a. a continuous waveform laser generating optical signals, and a high-speed data signal driver generating a high-speed data stream; b. the optical signals and high-speed data stream being input to an intensity modulator synchronously, wherein the optical signals are modulated into optical intensity pulses according to the high-speed data stream; c. the optical intensity pulses modulated and the high-speed data stream being input to a phase modulator synchronously, wherein the optical intensity pulses are modulated in phase into high-speed optical signals with chattering according to the high-speed data stream; d. the high-speed optical signals being input to the transmitting optical fibers.
- 2. An optical signal transmission system implementing the optical signal modulation method of claim 1, comprising:an optical signal-emitting module; optical fiber links amplifying and transmitting high-speed optical signals; an optical signal-receiving module; the optical signal-emitting module comprising: a continuous waveform laser generating optical signals; an intensity modulator modulating the intensity of optical signals into optical intensity pulses; a phase modulator modulating the phases of optical intensity pulses to attain high-speed optical signals with chattering; a high-speed data signal driver generating high-speed data stream controlling intensity modulation and phase modulation.
- 3. The optical signal transmission system of claim 2, wherein the optical fiber links comprise:transmitting fibers transmitting high-speed optical signals; two optical fiber amplifiers amplifying high-speed optical signals and implementing full compensation to optical power; a chromatic dispersion compensator compensating the chromatic dispersion of high-speed optical signals; the chromatic dispersion compensator being series-wound between said two optical fiber amplifiers, which connect with said transmitting fiber and said optical signal-receiving module respectively at the other end.
- 4. The optical signal transmission system of claim 3, wherein said optical fiber amplifier is a EDFA—Erbium-doped Fiber Amplifier.
Parent Case Info
This application is a continuation which claims priority under 35 U.S.C § 120 to PCT Application No. PCT/CN02/00422, filed Jun. 14, 2002 and 35 U.S.C §119 to CN 01140591.0, filed Nov. 11, 2002, the entirety of which is incorporated herein by reference.
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5745613 |
Fukuchi et al. |
Apr 1998 |
A |
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Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/CN02/00422 |
Jun 2002 |
US |
Child |
10/242973 |
|
US |