Low amplitude noise, intracavity doubled laser

Details Low amplitude noise, intracavity doubled laser Low amplitude noise, intracavity doubled laser

1996-03-01

1997-05-06

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Optical output stabilization

372 92, 372 22, 372 93, 372 19, H01S 313

Patent

active

056278497

ABSTRACT:
An amplitude-stable intracavity doubled laser comprises a pair of end mirrors defining a laser cavity having a length L. A laser medium having a gain region substantially smaller than the length L of the laser cavity is positioned within the laser cavity. A doubling crystal having a nonlinear conversion region substantially smaller than, the length L of the laser cavity is positioned within the laser cavity. A pump source is oriented to supply excitation energy to the laser medium. The laser medium and the doubling crystal located at positions within the laser cavity so as to cause the laser to lase in fewer than ten longitudinal modes and to output visible light with an amplitude noise of less than about 3% RMS on visible output from the laser.

REFERENCES:
patent: 5257274 (1993-10-01), Barrett et al.
patent: 5263038 (1993-11-01), Lukas et al.
patent: 5412676 (1995-05-01), Schnier et al.

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