Optical: systems and elements – Optical amplifier – Particular resonator cavity
Patent
1990-12-31
1992-06-02
Moskowitz, Nelson
Optical: systems and elements
Optical amplifier
Particular resonator cavity
372 49, 357 30, H01S 308
Patent
active
051190397
ABSTRACT:
A semiconductor optical amplifier includes an active region having facets at opposite ends thereof which define an optical cavity having maximum optical gain at a gain peak wavelength .lambda..sub.pk. An antireflection coating on each of the facets has a wavelength .lambda..sub.min of minimum reflectivity that is separated in wavelength from the gain peak wavelength, preferably by about 5 to 30 nanometers. The optical amplifier is operated at a bias current greater than a stimulated emission threshold bias current of the device. The input optical signal has a wavelength at or near the wavelength .lambda..sub.min of minimum reflectivity of the antireflection coatings. The optical amplifier has an electrical bandwidth on the order of 1 to 10 GHz.
REFERENCES:
patent: 4847844 (1989-07-01), Noda et al.
patent: 4860276 (1989-08-01), Ukita et al.
patent: 4879761 (1989-11-01), Webb
patent: 4965525 (1990-10-01), Zab
Olshansky et al; "Frequency Response . . . Lasers"; Sep. 1987; IEEE J.Q.E., vol. QE-23, pp. 1410-1418.
Su et al.; "17 GHz Direct Modulation . . . Lasers"; Apr. 10, 1985; Proc. SPIE Int Soc. Opt Eng.; vol. 545, pp. 10-13.
N. A. Olsson, "Lightwave Systems with Optical Amplifiers", Journal of Lightwave Technology, vol. 7, Jul. 1989 pp. 1071-1082.
J. Mellis, "Direct Optical Phase Modulation in Semiconductor Laser Amplifier", Electronics Letters, May 1989, vol. 25, No. 10, pp. 679-680.
G. Grosskopf et al., "Characteristics of Semiconductor Laser Optical Amplifier as Phase Modulator", Electronic Letters, Aug. 1989, vol. 25, No. 17, pp. 1188-1189.
M. Ikeda, "Signal Monitoring Characteristics for Laser Diode Optical Switches", Journal of Lightwave Technology, vol. LT-3, No. 4, Aug. 1985, pp. 909-913.
D. J. Malyon et al., "Laser Amplifier Control in 280 Mbit/s Optical Transmission System", Electronic Letters, vol. 25, No. 3, pp. 235-236, Feb. 1989.
M. Gustavsson et al., "Traveling Wave Semiconductor Laser Amplifier Detectors", Journal of Lightwave Technology, vol. 8, pp. 610-617, Apr. 1990.
Joyce Gerald R.
Olshansky Robert
GTE Laboratories Incorporated
Monks Lawrence E.
Moskowitz Nelson
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