Mode-locking and chirping system for lasers

Details Mode-locking and chirping system for lasers Mode-locking and chirping system for lasers

1979-11-23

1982-02-02

Sikes, William L.

Coherent light generators

Particular beam control device

Mode locking

372 28, H01S 310

Patent

active

043142109

ABSTRACT:
A single electro-optic device is provided for simultaneously mode-locking and chirping the output of a laser by simultaneously applying to the electrodes of the electro-optic device a periodic signal superimposed on a voltage ramp. The electro-optic device in general utilizes a crystal of the type which changes refractive index in accordance with an applied voltage. As a result, FM mode-locking is achieved through the use of the periodic signal, whereas mode lines are displaced or shifted in frequency during the generation of the laser output by virtue of the changing bias supplied by the voltage ramp.

REFERENCES:
patent: 3412251 (1968-11-01), Hargrove
patent: 3833286 (1974-09-01), Deserno et al.
"Pulse Chirping in a Nd:YAG Laser" by C. Kennedy, IEEE Jour. Quant. Elect. vol. QE-10, No. 6, p. 528-530 (Jun. '74).
"Pico-Second Laser Pulse Generator" by Carlson, IBM Tech. Disc. Bull., vol. 16, No. 10, Mar. '74.

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