Coherent light generators – Particular beam control device – Optical output stabilization
Patent
1987-09-28
1988-12-13
Sikes, William L.
Coherent light generators
Particular beam control device
Optical output stabilization
372 18, H01S 313
Patent
active
047916338
ABSTRACT:
A system for locking two Nd:YAG laser oscillators includes an optical path for feeding the output of one laser into the other with different polarizations. Elliptical polarization is incorporated into the optical path so that the change in polarization that occurs when the frequencies coincide may be detected to provide a feedback signal to control one laser relative to the other.
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T. Hansch et al., "Laser Frequency Stabilization by Polarization Spectroscopy of a Reflecting Reference Cavity," Optics Communications, vol. 35 No. 3, 12/80, pp. 441-444.
Y. Park et al., "Single Axial Mode Operation of a Q-Switched Nd:YAG Oscillator by Injection Seeding," IEEE Journal of Quantum Electronics, vol. QE-20, No. 2, 02/84, pp. 117-125.
R. Teets, "Feedback to Maintain Injection Locking of Nd:YAG Lasers," IEEE Journal of Quantum Electronics, vol. QE-20, No. 4, 04/84, pp. 326-328.
L. Rahn, "Feedback Stabilization of an Injection-Seeded Nd:YAG Laser," Applied Optics, vol. 24, No. 7, 04/01/85, pp. 940-942.
R. Schmitt et al., "Diode-laser-Pumped Nd:YAG Laser Injection Seeding System," Applied Optics, vol. 25, No. 5, 03/01/86, pp. 629-633.
Esherick Peter
Owyoung Adelbert
Chafin James H.
Hightower Judson R.
Libman George H.
Randolph B.
Sikes William L.
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