Piezo-electrically tuned optical resonator and laser using same

Details Piezo-electrically tuned optical resonator and laser using same Piezo-electrically tuned optical resonator and laser using same

1988-04-25

1989-05-09

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Tuning

372 37, 372 66, 372 93, H01S 310

Patent

active

048295329

ABSTRACT:
An optical resonator, preferably of a solid state laser, is tuned by one or more sheets of piezo-electric material bonded to one or more tuning facets of an optically transparent solid state member portion of the resonator. A tuning voltage applied across the piezo-electric sheet tends to change the area of the bonded interface of the sheet to generate a set of tuning forces predominantly in the plane of the surface of the tuning facet. These tuning forces are transmitted through the tuning facet into the solid state portion of the optical resonator to produce a change in its refractive index and dimensional change which tunes the frequency of the optical resonator and the laser using same, if any. In a preferred embodiment, the piezo-electrically tuned optical resonator is an optically pumped ring resonator made of a lasant material such as Nd:YAG for tuning the output frequency of the ring laser.

REFERENCES:
patent: 4578793 (1986-03-01), Kane
patent: 4747111 (1988-05-01), Trutna, Jr. et al.

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