Integrated optics semiconductor laser device

Details Integrated optics semiconductor laser device Integrated optics semiconductor laser device

1995-12-08

1997-08-12

Bovernick, Rodney B.

Coherent light generators

Particular active media

Semiconductor

372 45, 372 46, H01S 319

Patent

active

056573391

ABSTRACT:
An integrated optics semiconductor laser device comprises, combined with one another, a light emitting section, a diffraction grating for controlling the wavelength of a produced laser beam, and an optical amplifier, which has a tapered portion, that confines a guided optical wave therein, and in which an optical wave is guided with refractive index wave guiding through an active medium. Unevenness is formed on side surfaces of the tapered portion, which side surfaces extend in a direction along which the optical wave is guided. The integrated optics semiconductor laser device can be controlled to produce a laser beam in the fundamental transverse mode even under the conditions for radiating a laser beam having a high intensity.

REFERENCES:
patent: 4744089 (1988-05-01), Montroll et al.
patent: 4856017 (1989-08-01), Unger
patent: 5084892 (1992-01-01), Hayakawa
IEEE Journal of Quantum Electronics, vol. 29, No. 6 Jun. 1993 "Operating Characteristics of High-Power Monolithically Integrated Flared Amplifier Master Oscillator Power Amplifier" pp. 2052-2057 by O'Brien et al.

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