Solid state laser with longitudinal cooling

Details Solid state laser with longitudinal cooling Solid state laser with longitudinal cooling

1998-08-06

2000-08-08

Scott, Jr., Leon

Coherent light generators

Particular temperature control

Heat sink

372 22, 372 34, 372 92, 372 98, 372 99, 372107, 372108, H01S 304

Patent

active

061012017

ABSTRACT:
An optically-pumped laser comprises a laser cavity, a solid-state gain medium and an optically transparent heat sink (OTH) situated within the laser cavity. The gain medium and OTH are thermally coupled and at least one of the solid-state gain medium and the OTH has an etalon structure thereby improving laser efficiency. The OTH advantageously provides effective heat transfer and permits higher average power operation, particularly for thin solid-state laser materials. A metallic heat sink may be thermally coupled to the OTH to improve heat transfer. In some embodiments, the laser is end-pumped with optical pump radiation through the OTH. A second intracavity OTH may be thermally coupled to the gain medium opposite the first OTH to provide longitudinal heat transfer in both directions. A frequency-converted laser may be provided by using a nonlinear material longitudinally cooled on each end by intracavity OTHs, at least one of which comprises an etalon structure. In some frequency-converted laser embodiments, first and second converted beams are output from the laser cavity along separate optical paths in a manner that advantageously prevents intracavity interference between the two converted beams.

REFERENCES:
patent: 4731787 (1988-03-01), Fan et al.
patent: 4739507 (1988-04-01), Byer et al.
patent: 4791631 (1988-12-01), Baumert et al.
patent: 4797893 (1989-01-01), Dixon
patent: 4809291 (1989-02-01), Byer et al.
patent: 4847851 (1989-07-01), Dixon
patent: 4860304 (1989-08-01), Mooradian
patent: 4872177 (1989-10-01), Baer et al.
patent: 4879722 (1989-11-01), Dixon et al.
patent: 4879723 (1989-11-01), Dixon et al.
patent: 4933947 (1990-06-01), Anthon et al.
patent: 4942582 (1990-07-01), Kintz et al.
patent: 4953166 (1990-08-01), Mooradian
patent: 4982405 (1991-01-01), Zayhowski et al.
patent: 5022745 (1991-06-01), Zayhowski et al.
patent: 5063566 (1991-11-01), Dixon
patent: 5070505 (1991-12-01), Dixon
patent: 5115445 (1992-05-01), Mooradian
patent: 5164947 (1992-11-01), Lukas et al.
patent: 5222088 (1993-06-01), Amano
patent: 5287381 (1994-02-01), Hyuga et al.
patent: 5331650 (1994-07-01), Maeda et al.
patent: 5441803 (1995-08-01), Meissner
patent: 5511085 (1996-04-01), Marshall
patent: 5757839 (1998-05-01), Biswal et al.
patent: 5761227 (1998-06-01), Hargis et al.
patent: 5796766 (1998-08-01), Hargis et al.
Byer, R. (1988) Diode laser-pumped solid-state lasers. Science 239:742-747.
Dorozhkin, L., et al. (1981) Optical second-harmonic generation in a new nonlinear active medium . . . Sov. Tech. Phys. Lett. 7:555-556.
Dimitriev, V., et al. (1979) Simultaneous emission at the fundamental frequency and the second harmonic . . . Sov Tech. Phys. Lett., 5(11):590.
Fan, T., et al. (1986) Nd:MgO:LiNbO.sub.3 spectroscopy and laser devices. J. Opt. Soc. Am. 3(1):140-147.
Jensen, T., et al. (1994) Spectroscopic characterization and laser performance of . . . Appl. Phys. B. 58:373-379.
Lin, J.T. (1989) Progress Report: Diode pumping and frequency conversion. Lasers & Optronics 61-66.
Zagumennyl, A., et al. (1992) The ND:GdVO.sub.4 crystal: a new material for diode-pumped lasers. Sov. J. Quantum Electron 22(12):1071-1072.
Zayhowski, J. (1990) Microchip lasers. The Lincoln Laboratory Journal 3(3):427-445.
Patent Abstract No. A 4291976. Abstract date Mar. 3, 1993 vol. 17 No. 104.
Lin, J.T. (1990) Doubled jeopardy: the blue-green race's new players. Lasers & Optronics 34-40.
Lu, B., et al. (1986) Excited emission and self-frequency-doubling effect of . . . Chinese Phys. Lett. 3(9):413-416.
Nabors, C., et al. (1992) High-power, continuous-wave, Nd:YAG microchip laser array. Optics Letters 17(22):1587-1589.
Payne, S., et al. (1992) 752 nm wing-pumped Cr:LiSAF laser. IEEE Journal of Quantum Electronics 28(4):1188-1196.
Risk, W., et al. (1989) Diode laser pumped blue light source at 473nm using intracavity frequency doubling of a 946 nm Nd:YAG laser. Appl. Phys. Lett. 54(17):1625-1627.
Sasaki, T., et al. (1991) Single-longitudinal mode operation and second-harmonic generation of Nd:YVO.sub.4 microchip lasers. Optics Letters 16(21):1665-1667 (1991).
Schutz, L., et al. (May 23, 1990) Self-frequency doubling Nd:YAB laser pumped by a diode laser. CLEO-90, paper CWC4.
Tatsuno, K., et al. (May 1992) Highly efficient and stable green Microlaser consisting of Nd:YVO.sub.4 with interactivity KTP for optical storage. CLEO 92, Paper CW08.
Wang, S., et al. (1990) Characteristics of neodymium yttrium aluminum borate as a diode-pumped laser material Topical Mtng. on Advance Lasers, Session TuB4 pp. 23-25.
Yaney, P., et al. (1976) Spectroscopic studies and analysis of the laser states of Nd.sup.3 in YVO.sub.4. J. Opt.Soc. Am. 66(12):1405-1414.
Nabors, et al. (1992) "High-power, continuous wave, Nd:YAG microchip laser array", vol. 17, No. 22, pp. 1507-1509 2412 Optics Letters.

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