Coherent light generators – Particular pumping means – Pumping with optical or radiant energy
Patent
1988-09-09
1989-11-28
Scott, Jr., Leon
Coherent light generators
Particular pumping means
Pumping with optical or radiant energy
372 98, 372 92, H01S 3091
Patent
active
048842818
ABSTRACT:
A compact, laser diode pumped, high efficiency, solid-state laser comprises an output coupler mirror forming a front end of a laser cavity. A back end of the laser cavity is formed by a rear mirror through which emissions from a laser diode pass for pumping a laser chip of stoichiometric lasing material. A frequency doubler chip is positioned immediately adjacent the laser chip to double the frequency of light generated by the laser chip and thereby halve its wavelength. The laser chip is bonded to the frequency doubler chip by coupling material having a refractive index matched to the chips to nearly eliminate reflections at the bonded chip surfaces. Such bonding increases the effective Q of the laser cavity which receives the bonded combination of the laser chip and the doubler chip at a beam waist defined within the laser cavity by means of beam shaping with the laser chip being positioned to receive pumping energy from a laser diode through the rear mirror of the laser cavity. Spiking or peaking of the output laser light is effected by gain switching, phase modulation or by imparting vibratory motion to the bonded combination of the laser chip and the frequency doubler chip.
REFERENCES:
patent: 3982201 (1976-09-01), Rosenkrantz
patent: 4035742 (1977-07-01), Schiffner
patent: 4464759 (1984-08-01), Haus et al.
patent: 4618957 (1986-10-01), Liu
patent: 4653056 (1987-03-01), Baer et al.
patent: 4656635 (1987-04-01), Baer et al.
patent: 4665529 (1987-05-01), Baer et al.
patent: 4701929 (1987-10-01), Baer et al.
patent: 4723257 (1988-02-01), Baer et al.
patent: 4730335 (1988-03-01), Clark et al.
patent: 4731787 (1988-03-01), Fan et al.
patent: 4731795 (1988-03-01), Clark et al.
patent: 4739507 (1988-04-01), Byer et al.
patent: 4756003 (1988-07-01), Baer et al.
patent: 4761786 (1988-08-01), Baer
Stable LiNdP.sub.4 O.sub.12 Miniature Laser, Applied Optics, vol. 18, No. 6, Mar. 1979.
Nd-Ultraphosphate Laser, Appl. Phys. Lett., vol. 22, No. 10, May 1973.
Chinn, S. R., Intracavity Second-Harmonic Generation in a Nd Pentaphosphate Laser, Appl. Phys. Lett., vol. 29, No. 3, Aug. 1, 1976.
Gain Switch of a Monolithic Single Frequency Laser-Diode-Excited Nd:YAG Laser, Optics Letters, vol. 10, No. 10, Oct. 1985.
Diode-Pumped Solid-State Laser Markets and Production Expand, Laser Focus/Electro-Optics.
Randall et al., Diode-Laser-Pumped Nd:YAG Laser Injection Seeding System.
Byer, Diode Laser Pumped Solid State Lasers.
Chinn et al., Low Threshold, Transversely Excited NdP.sub.5 O.sub.14 Laser, IEEE J. of Quantum Electronics, Sep. 1975.
Budin et al., On the Design of Neodymium Miniature Lasers, IEEE J. of Quantum Electronics, vol. QE-14, No. 11, Nov. 1978.
Budin et al., Miniature Nd-Pentaphosphate Laser with Bonded Mirrors Side Pumped with Low-Current-Density LED's Appl. Phys. Lett., vol. 33, No. 4, Aug. 15, 1978.
Kubodera et al., Spike-Mode Oscillations in Laser-Diode Pumped LiNdP.sub.4 O.sub.12 Lasers, IEEE J. of Quantum Electronics, vol. QE-17, No. 6, Jun. 1981.
Barnes, N. P., Diode-Pumped Solid-State Lasers, J. Appl. Phys., vol. 44, No. 1, Jan. 1973.
Chesler et al., "Miniature Diode-Pumped Nd:YAIG Lasers", Appl. Phys. Lett., vol. 23, No. 5, Sep. 1, 1973.
Culshaw et al., Efficient Frequency-Doubled Single-Frequency Nd:YAG Laser, IEEE J. of Quantum Electronics, vol. QE-10, No. 2, Feb. 1974.
Baer, Thomas M., Diode Laser Pumping of Solid-State Lasers, Laser Focus, Jun. 1986, Ed.
Hawthorn Pliny S.
Sobottke Mark D.
Jr. Leon Scott
Spectra-Physics Inc.
LandOfFree
Low cost/power visible light solid-state laser does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low cost/power visible light solid-state laser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low cost/power visible light solid-state laser will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-586873