Opto-electronic devices

Details Opto-electronic devices Opto-electronic devices

1986-06-02

1988-12-27

Sikes, William L.

Coherent light generators

Particular active media

Semiconductor

372 52, 357 17, 351166, 330 43, H01S 318

Patent

active

047946075

ABSTRACT:
An optical amplifier takes the form of a semiconductor laser with coatings on its two facets. The coating takes the form of an anti-reflective coating, e.g. an oxide of Y, Gd, Nd, or La, to reduce the reflectivity and a thin interlayer, e.g. Al.sub.2 O.sub.3, to enhance compatibility between the laser and the anti-reflective coating.

REFERENCES:
patent: 4337443 (1982-06-01), Umeda et al.
patent: 4387960 (1983-06-01), Tani
patent: 4638334 (1987-01-01), Burnham et al.
Heitmann; Reactively Evaporated Films of Scandia and Yttia; Feb. 1973; pp. 394-397.
Patents Abstracts of Japan, vol. 7, No. 140 (E-182) 1285, Jun. 18, 1983; & JP A 58 54 691 (Hitachi Seisakusho K.,.) 31.03.1983.
Applied Physics Letters, vol. 46, No. 2, Jan. 15, 1985, pp. 133-135, American Institute of Physics, New York, US; R. H. Rediker et al.: "Operation of Individual Diode Lasers as a Coherent Ensemble Controlled by a Spatial Filter within an External Cavity", p. 134.
Applied Physics Letters, vol. 45, No. 12, Dec. 15, 1984, pp. 1314-1316, American Institute of Physics, New York, US; J. Hegarty et al: "High Speed Modulation and Switching with Gain in a GaAlAs Traveling-Wave Optical Amplifier", p. 1315, left-hand column, first paragraph.
Patents Abstracts of Japan, vol. 7, No. 218 (E-200) 1363, 28.09.1983; & JP-A-58 111 386 (Hitachi Seisakusho K.K.) 02.07.1983.
Applied Physics Letters, vol. 44, No. 5, Mar. 1, 1984, pp. 481-483, American Institute of Physics, London, GB; P-L. Lui et al: "Measurements of Intensity fluctuations of an InGaAsP", p. 481.

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