Oscillation mode switching laser devices

Details Oscillation mode switching laser devices Oscillation mode switching laser devices

1989-08-24

1990-12-11

Epps, Georgia

Coherent light generators

Particular beam control device

Producing plural wavelength output

372 19, 372 26, 372 28, 372 29, H01S 310

Patent

active

049775618

ABSTRACT:
A laser device according to the present invention having a semiconductor laser which has at least two longitudinal modes .lambda..sub.0 and .lambda..sub.1 both of which are able to oscillate, and oscillating at the single longitudinal mode .lambda..sub.0. The device further comprises input means which inputs a wave nearly coincident with .lambda..sub.1 to the semiconductor laser to switch the oscillating wavelength from .lambda..sub.0 to .lambda..sub.1. The semiconductor laser maintains its oscillating wavelength .lambda..sub.1 even if the intensity of said wave input from said input means reduces.

REFERENCES:
patent: 3999146 (1976-12-01), Lang et al.
patent: 4101845 (1978-07-01), Russer
patent: 4660205 (1987-04-01), Harter et al.
patent: 4734911 (1988-03-01), Bruesselbach
patent: 4757507 (1988-07-01), Wondrazek et al.
"Picosecond-Switching Optical Bistability in a TM-Wave Injected BH Laser", Extended Abstracts of the 18th (1986 International) Conference on Solid State Device and Materials, Tokyo, 1986, Y. Mori et al.
"Longitudinal-Mode Behaviors of Mode-Stabilized Al.sub.x Gal-.sub.x As Injection Laser", M. Nakamura et al., J. Appl. Phys. 49(9), Sep. 1978, pp. 4644-4648.
1987 National Convention of the IEICE of Japan, p. 849, "2Gb/s Ultra High Speed Optical Memory Using a Bistable Laser Diode", A. Tomita et al.

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