| K-Rb Laser Pump Lamp. |
NOV 1975 |
88 pages |
| Authors:
Norman C. Anderson; ILC TECHNOLOGY INC SUNNYVALE CA
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 | A program was conducted to continue development of a potassium-rubidium arclamp for laser pumping. Significant progress was made. Improved lamp bake-out, improved filling procedures and incorporation of an internal uranium getter prevented attack of the polished sapphire lamp envelope by the potassium vapor. A new, single envelope, air compatible lamp with nickel endcaps and novel brazed endseals was successfully tested. Dramatic improvement in laser pumping efficiency was achieved by substituting ... |
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| Sun Pumped Laser. |
OCT 1973 |
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| Authors:
Lloyd Huff; GTE GOVERNMENT SYSTEMS CORP MOUNTAIN VIEW CA SYLVANIA SYSTEMS GROUP-WESTERN D IV
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 | The sun pumped Nd:YAG laser developed on the previous program, AF contract F33615-72-1240, produced a fundamental mode output of 0.8 watts. This performance represented a multimode to TEMsub 00 mode conversion efficiency of about 17 percent in contrast to the 40 to 45 percent conversion which conductively cooled, lamp pumped lasers had demonstrated. The principal objectives of the work described in this report were to increase the TEM sub 00 ... |
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| GaAsP Diode-Pumped Nd:YAG Laser. |
30 APR 1970 |
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| Authors:
Stanley J. Scalise; Raymond B. Allen; TEXAS INSTRUMENTS INC DALLAS EQUIPMENT GROUP
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| The use of spontaneous, GaAsP light-emitting diodes for CW optical pumping of Nd:YAG lasers was investigated. Two diode-pumped lasers were constructed and successfully operated at liquid nitrogen temperatures (77K). CW laser outputs of 130 mW and 430 mW were obtained at 1.06 micrometers with power efficiencies of 1.23 percent and 1.02 percent, respectively. The importance of the spectral match between the laser material absorption characteristics and the GaAsP array output ... |
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| Alkali-Vapor Light Sources as Optical Pumps for Nd: YAG. |
NOV 1969 |
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| Authors:
William T. Bayha; John E. Creedon; Sol Schneider; ARMY ELECTRONICS COMMAND FORT MONMOUTH NJ
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| Pulse-operated light sources containing cesium (Cs), rubidium (Rb), potassium (K), sodium (Na), and a Na-Rb mixture were evaluated for efficiency as optical pumps for Nd:YAG. The results are compared with those obtained from conventional xenon (Xe) and krypton (Kr) flashlamps. The Na-Rb mixture has a maximum efficiency over the four broad pumping regions of Nd: YAG that is twice as large as that of Xe, when operated under similar conditions ... |
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| OPTICAL PUMPS FOR LASERS-PHASE II. |
JUN 1967 |
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| Authors:
C. H. Church; D. A. Larson; I. Liberman; R. G. Young; WESTINGHOUSE RESEARCH LABS PITTSBURGH PA
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| The goal of this research program is to achieve efficient optical pumps for lasers. This second phase may be divided into two tasks: to fabricate spectral additive lamps which will radiate efficiently in an absorption band or bands of Nd:YAG, and to demonstrate the efficiency of the lamps in an appropriately designed laser head. During this quarter lamps having either polycrystalline or single crystal Al2O3 (sapphire) bodies were made and ... |
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| OPTICAL INTERACTIONS IN RUBY LASERS. |
28 FEB 1967 |
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| Authors:
Fred C. Unterleitner; Ying C. Kiang; GENERAL DYNAMICS/ELECTRONICS ROCHESTER N Y
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| The report concerns the initial stages of an investigation into the efficiency of ruby lasers, and the kinetics of energy level populations generated by optical pumping. The work described includes the calibration of absolute spectral response of photodetectors, the measurement of ground state absorption cross sections, and the metastable state absorption cross section at selected wavelengths; also described are the preliminary experiments involving end pumping by ion laser radiation at ... |
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| CHEMICAL LASER PUMP, |
JUN 1966 |
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| Authors:
John L. Wright; FELTMAN RESEARCH LABS PICATINNY ARSENAL DOVER N J
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| The sharply defined bright zone produced by the detonation of a cyanogen-oxygen mixture in small test vehicles looks promising as a pump for solid-state lasers such as neodymium-doped glass and ruby. Brightness temperatures between 6000 to 7000 K are routinely obtained. By adding inert depants such as argon, xenon and helium to the mixture, brightness temperatures in the vicinity of 8000K have been attained. The combustion or detonation that takes ... |
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