Laser resonator cavity

Details Laser resonator cavity Laser resonator cavity

1982-09-29

1985-03-12

Sikes, William L.

X-ray or gamma ray systems or devices

Electronic circuit

X-ray source power supply

378108, 378103, 378 99, H01S 308

Patent

active

045049564

ABSTRACT:
Stability of the optical path in a laser resonator cavity is achieved by means of two reflective surfaces mounted orthogonally with respect to each other, serving as the reflector at one end of the resonator cavity. Return and feedback mirrors are rigidly mounted at the opposite end of the aforementioned resonator cavity. Changes in relative orientation not self-compensated by the use of orthogonally-mounted mirrors are corrected by means of a real-time servomechanism. A typical servomechanism comprises an auxiliary laser mounted rigidly to one end of the laser resonator cavity reflecting a collimated light beam from a reflector mounted rigidly to the opposite end of the resonator cavity. The reflected spot is detected by a detector, sensitive to positional changes in the reflected light, rigidly mounted with respect to the auxiliary laser. The positional changes of this reflected spot are used to drive a linear translator to correct the relative orientation in real-time.

REFERENCES:
patent: 3603688 (1971-09-01), Smith-Vaniz
patent: 4144505 (1979-03-01), Angelbeck et al.
patent: 4146329 (1979-03-01), King et al.

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