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Efficient Tunable Visible Laser Source.

David C. Brown,David P. Benfey,Alec Robbins,Steven J. Davis,William Kessler-1992-11-01
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Abstract : In this final report, we summarize the design and performance of an optically phase-conjugated tunable visible dye laser system, and the frequency doubled Q- switched Nd:YAG laser used to drive it. This high-brightness laser source utilized optical phase-conjugation (OPC) via Stimulated Brillouin Scattering (SBS) in a double-passed dye laser cell containing Rhodamine 6G in methanol. The dye cell it-self served as the SBS active medium. The use of SBS to remove optical abberrations in laser systems is relatively well-known; the implementation described herein is unique and can be used to provide a very compact tunable laser source. We have produced a 561 improvement in beam brightness and a 2.74 times improvement in beam jitter using the SBS in the double passed amplifier over using an ordinary retro mirror. This increase in beam brightness is due to a significant improvement in beam quality, and some pulse compression, obtained by using SBS. Output energy/pulse of 23 mJ has

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Abstract : In this final report, we summarize the design and performance of an optically phase-conjugated tunable visible dye laser system, and the frequency doubled Q- switched Nd:YAG laser used to drive it. This high-brightness laser source utilized optical phase-conjugation (OPC) via Stimulated Brillouin Scattering (SBS) in a double-passed dye laser cell containing Rhodamine 6G in methanol. The dye cell it-self served as the SBS active medium. The use of SBS to remove optical abberrations in laser systems is relatively well-known; the implementation described herein is unique and can be used to provide a very compact tunable laser source. We have produced a 561 improvement in beam brightness and a 2.74 times improvement in beam jitter using the SBS in the double passed amplifier over using an ordinary retro mirror. This increase in beam brightness is due to a significant improvement in beam quality, and some pulse compression, obtained by using SBS. Output energy/pulse of 23 mJ has

Keywords

OpticsMaterials scienceLaserLaser beam qualityLaser linewidthOptoelectronicsBrightnessBrillouin scattering

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