Method and system for reducing chirp in an optical cummunication

Details Method and system for reducing chirp in an optical cummunication Method and system for reducing chirp in an optical cummunication

1995-06-07

1997-03-04

Chin, Wellington

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359173, 359181, 359188, H04B 1000

Patent

active

056085613

ABSTRACT:
In external modulation, a modulated light signal is shaped to decrease pulse transition times resulting in less chirp. Accordingly, the modulated signal travels greater distances with less pulse distortion over an optical medium. For an integrated-type of external modulator, chirp is reduced further by using a laser modulator coupled to multiple complementary output ports.

REFERENCES:
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patent: 5311351 (1994-05-01), Chesnoy
patent: 5420868 (1995-05-01), Chraplyvy et al.
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D. Marcuse et al., "Time-Dependent Simulation of Laster-Modulator Combination", IEEE J. of Quantum Electron. vol. 30, No. 12, Dec. 1994, pp. 2743-2755.
M. Suzuki et al., "Electrical and Optical Interactions Between Integrated InGaAsP/InP DFB Lasers and Electroabsorption Modulators", J. Lightwave Techno., vol. 6, No. 6, Jun. 1988, pp. 779-784.
T. H. Wood, "Multiple Quantum Well, (MQW) Waveguide Modulators", J. Lightwave Technol., vol. 6, No. 6, Jun. 1988, pp. 743-757.

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