Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1994-03-21
1996-02-20
Sugarman, Scott J.
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359245, 359248, 359254, 359276, 372 26, 372 31, 372 96, G02F 103
Patent
active
054934389
ABSTRACT:
An amplitude optical modulator which utilizes a two-electrode DFB laser structure. The amplitude optical modulator includes a current generator which can modulate at least one of two currents injected into the DFB laser structure. This modulation displaces a spontaneous emission peak of the DFB laser structure, which leads to an amplitude modulation of the injected optical beam. Such an amplitude optical modulator may find particular application in an optical telecommunications system.
REFERENCES:
patent: 4835779 (1989-05-01), Liou
Journal of Lightwave Techology, vol. 10, No. 10, pp. 1388-1397, Oct. 1992, M. J. Chawki, et al., "Two-Electrode DFB Laser Filter Used as a Wide Tunable Narrow-Band FM Receiver: Tuning Analysis, Characteristics and Experimental FSK-WDM System".
The Transactions of the IEICE, vol. E71, No. 10, pp. 972-974, Oct. 1988, M. Fujiwara, et al., "1.55 .mu.m Laser Diode Optical Modulator".
IBM Technical Disclosure Bulletin, vol. 36, No. 02, pp. 43-45, Feb. 1993, "Self-Tuning Optical External Modulator".
Chawki Mouhamad
Gay Emmanuel
Le Ligne Marc
Bey Dawn-Marie
France Telecom Etablissement (Autonome de Droit Public)
Sugarman Scott J.
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