Coherent light generators – Particular resonant cavity – Specified cavity component
Patent
1989-03-07
1991-05-28
Scott, Jr., Leon
Coherent light generators
Particular resonant cavity
Specified cavity component
H01S 308
Patent
active
050200739
ABSTRACT:
Alignment of a birefringent tunable laser gain medium characterized by a first face and a second face cut at Brewster's angle so that a plane of polarization is defined. The gain medium is secured in the optical path by a rotatable member having an axis of rotation that is normal to the Brewster faces of the optical device. Coupled with the rotatable member is a support allowing adjustment of the angular position about the axis of rotation fo the rotatable member. An operator adjusts the angular position of the rotatable member until the C-axis of the gain medium lies in the plane of polarization. Even though the C-axis may not be parallel to the direction of polarization, the depolarization effects of the misalignment are eliminated by proper adjustment of the angular position relative to the plane of polarization. A tunable, solid state laser using the alignment apparatus with a birefringent filter achieves greater linear tuning range.
REFERENCES:
patent: 3983507 (1976-09-01), Tang et al.
patent: 4438517 (1984-03-01), Bobb et al.
patent: 4567597 (1986-01-01), Mandella
patent: 34642809 (1987-02-01), Petheram
Arnold L. Bloom, "Modes of a Laser Resonator Containing Tilted Birefrigent Plates", Journal of the Optical Society of America, vol. 64, No. 4, Apr. 1974.
Preuss et al., "Three-Stage Birefringent Filter Tuning Smoothly Over the Visible Region: Theoretic Treatment and Experimental Design", Applied Optics, vol. 19, No. 5, Mar. 1, 1980.
Holtom et al., "Design of a Birefringent Filter for High-Power Dye Lasers", IEEE Journal of Quantum Electronics, vol. QE-10, No. 8, Aug. 1974.
Mudare et al., "Simple Alignment Procedure for the Assembly of Three-Plate Birefringent Filters for Tunable Dye Lasers", Applied Optics, vol. 22, No. 5, Mar. 1, 1983.
November et al., "Derivation of the Universal Wavelength Tuning Formula for a Lyot Birefringent Filter," Applied Optics, vol. 23, No. 13, Jul. 15, 1984.
Peter A. Schultz, "Single-Frequency Ti:Al.sub.2 O.sub.3 Ring Laser", IEEE Journal of Quantum Electronics, vol. 24, No. 6, Jun. 1988.
Anthony J. Alfrey, U.S. Ser. No. 07/241,698, filed Jan. 6, 1990.
Alfrey Anthony J.
Palmer James A.
Jr. Leon Scott
Spectra-Physics
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