H - Electricity – 01 – S
Patent
H - Electricity
01
S
H01S 3/06 (2006.01) H01S 5/50 (2006.01) H01S 5/028 (2006.01)
Patent
CA 2057374
89-3-684 SEMICONDUCTOR OPTICAL AMPLIFIER WITH WIDEBAND ELECTRICAL RESPONSE 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 waveleng .lambda.pk. An antireflection coating on each of the facets has a wavelength .lambda.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.min of minimum reflectivity of the antireflection coatings. The optical amplifier has an electrical bandwidth on the order of 1 to 10 GHz.
Joyce Gerald R.
Olshansky Robert
Gte Laboratories Incorporated
Joyce Gerald R.
Olshansky Robert
R. William Wray & Associates
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