Optical Q-switching to generate ultra short pulses in diode lase

Details Optical Q-switching to generate ultra short pulses in diode lase Optical Q-switching to generate ultra short pulses in diode lase

1994-11-23

1995-10-03

Lee, John D.

Coherent light generators

Particular beam control device

Control of pulse characteristics

372 10, 372 75, 372 96, H01S 311

Patent

active

054558360

ABSTRACT:
A system for generating an ultra short optical pulse by pumping a semiconductor signal laser with an optical pulse from a semiconductor probe laser. The signal laser has dual segments each operated under different d.c. injection current levels. The probe laser is modulated with a pulsed input and the optical output thereof is coupled via optical means to the signal laser so as to Q-switch the latter. Optical pulses in the 65 ps range result.

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patent: 4641312 (1987-02-01), Schafer et al.
patent: 4696009 (1987-09-01), Suse et al.
patent: 5265115 (1993-11-01), Amano
patent: 5283801 (1994-02-01), Mecherle
patent: 5317447 (1994-05-01), Baird et al.
"Mechanisms of Fast Self Pulsations in Two-Section DFB Lasers", Wenzel et al, Institut fur Angewandte Analysis und Stochastik Berlin, Germany, Jul. 27, 1994, pp. 1-28.
"Improving Pulses From 2-Contact Self-Pulsating DFB Semiconductor Lasers", Lowery, et al., Photonics Research Laboratory, Dept. of Electrical and Electronic Engineering, University of Melbourne, Parkville, VIC 3052, Australia, 1994 pp. 103-104 (no month).
"12 GHz to 64 GHz Continuous Frequency Tuning in Selfpulsating 1.55 um Quantum Well DFB Lasers", Feiste, et al, Heinrich-Hertz-Institut fur Nachrichtentechnik Berlin GmbH, Berlin, Germany, 1994, pp. 227-228 (no month).

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