Method and circuit for shaping laser output pulses

Details Method and circuit for shaping laser output pulses Method and circuit for shaping laser output pulses

1989-05-31

1990-09-25

Sikes, William L.

Coherent light generators

Particular beam control device

Control of pulse characteristics

372 30, 372 38, H01S 310

Patent

active

049598384

ABSTRACT:
The invention is a method and circuit for shaping laser pulses 17' in which a laser medium 12' in a laser resonator 10' that includes a Q-switch 14' and polarizer 13' which act in combination to control the loss of the resonator 10' and provide the laser output 17' representative of such loss. An optical diode 22' senses the level of the output pulse 17' and provides an output signal 23' that when amplified is used with a control voltage from a supply 29' provide a control signal 19' which is applied to Q-switch 14' to control the shape of the output pulse 17' by adjusting its length.

REFERENCES:
patent: 4477905 (1984-10-01), Sweeney
patent: 4630275 (1986-12-01), Rapoport
Koechner, W., Solid-State Laser Engineering, pp. 426-431 Jan. (1976).
Electronics Letters Jul. (1972), vol. 8, No. 15, pp. 369 and 370.
Optics Communications, vol. 65, No. 4 Feb. (1988), pp. 293-286.
IEEE Journal of Quantum Electronics, vol. QE-17, No. 9 Sep. (1981), p. 1656.
Quantum Technology, Inc., Short Form Catalog, (1-6) Aug. 81.

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