Injection Mode-Locked, Q-Switched Nd:YAG Laser at 1319 nm

There is currently no laser source that can provide both efficient excitation of mesospheric sodium and allow removal of the effects of guide-star elongation, as required for multi-conjugate adaptive optics in next-generation extremely large telescopes. We describe a Q-switched 1319 nm Nd:YAG laser...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 2010-07, Vol.46 (7), p.1086-1090
Main Authors: Simakov, N., Hosken, D.J., Hamilton, M.W., Munch, J., Veitch, P.J.
Format: Article
Language:English
Subjects:
Adaptive optics
Astronomy
Atmosphere
Doped-insulator lasers and other solid state lasers
Earth, ocean, space
Exact sciences and technology
Frequency
Frequency conversion
harmonic generation, including high-order harmonic generation
Fundamental areas of phenomenology (including applications)
Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations
Historical astronomy and archaeoastronomy
and other topics in fundamental astronomy and astrophysics
instrumentation, techniques, and astronomical observations
Injection mode-locked
laser guide star
Laser mode locking
Laser optical systems: design and operation
Lasers
Nd:YAG
Nonlinear optics
Optical pulse generation
Optical pulses
Optical scattering
Optics
Physics
Q-switched
Q-switching
Telescopes
Ultraviolet sources
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Description
Summary:There is currently no laser source that can provide both efficient excitation of mesospheric sodium and allow removal of the effects of guide-star elongation, as required for multi-conjugate adaptive optics in next-generation extremely large telescopes. We describe a Q-switched 1319 nm Nd:YAG laser that is mode-locked by injecting a short pulse into the Q-switched laser. It produces Q-switched mode-locked pulses that are synchronized to an external source. We also discuss how such pulses at 1064 nm and 1319 nm can be used to generate pulsed sodium-resonant guide stars via sum frequency generation, and thus satisfy the above requirements.
ISSN:0018-9197
1558-1713
DOI:10.1109/JQE.2010.2043501