Techniques for reducing and/or eliminating secondary modes in a

Details Techniques for reducing and/or eliminating secondary modes in a Techniques for reducing and/or eliminating secondary modes in a

1986-09-22

1988-10-25

Sikes, William L.

Coherent light generators

Particular beam control device

372 53, 372 54, H01S 310, H01S 320

Patent

active

047808780

ABSTRACT:
A dye laser master oscillator is disclosed herein. This oscillator is intended to provide a single mode output, that is, a primary beam of light of a specific wavelength, but also has the tendency to provide secondary modes, that is, secondary beams of light at different wavelengths and slightly off-axis with respect to the primary beam as a result of grazing incident reflections within the dye cell forming part of the master oscillator. Also disclosed herein are a number of different techniques for reducing or eliminating these secondary modes.

REFERENCES:
patent: 3478277 (1969-11-01), Giordmaine et al.
patent: 3868590 (1975-02-01), Itzkan et al.
patent: 4016504 (1977-04-01), Klauminzer
Moore et al., "Power-scaling effects in dye lasers under high power laser excitation", J. Appl. Phys, 49(1), Jan. 1978, pp. 47-60.
Hansch, "Repetitively Pulsed Tunable Dye Laser for High Resolution Spectroseupy", Applied Optics, vol. 11, No. 4, Apr. 1972, pp. 895-898.

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