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A new guide star laser using optimized injection mode-locking

A new guide star laser using optimized injection mode-locking
A new guide star laser using optimized injection mode-locking
We describe a new, improved approach for sodium guide-star lasers for the correction of atmospheric aberrations in telescopes, which satisfies all current requirements for advanced pulse burst waveforms. It makes use of sum frequency generation (SFG) of two pulsed, Q-switched, injection mode-locked Nd:YAG lasers, resulting in a macro-micro pulse-burst output, optimized in power and bandwidth to maximize the fluorescence from the high altitude sodium layer. The approach is robust and power scalable and satisfies the requirements for Multi Conjugate Adaptive Optics (MCAO) for current and future telescopes, including extremely large ground telescopes (ELTs). It is also adaptable for advanced design options. Here we describe the approach in detail, the results from critical design verification experiments, the current status and plans for further work required to demonstrate a complete sodium guide-star laser.
Guide star laser, adaptive optics, macro-micro pulse-burst, injection mode-locking, bandwidth control
Munch, Jesper
89d00041-4c3c-4ba6-a128-1bb21e0d1ee5
Rutten, Thomas P.
88329508-de19-40ba-a951-556c3a377179
Simakov, Nikita
984eef10-d13b-4cc6-852f-bcc58b432832
Hamilton, Murray
9270616b-a8be-40b2-b115-15e0e34cf2ba
d'Orgeville, Celine
c31d890e-489a-43b8-b9e9-f07f1332ef3b
Veitch, Peter J.
681fde4a-f1ba-4c15-9783-48ea035d749d
Munch, Jesper
89d00041-4c3c-4ba6-a128-1bb21e0d1ee5
Rutten, Thomas P.
88329508-de19-40ba-a951-556c3a377179
Simakov, Nikita
984eef10-d13b-4cc6-852f-bcc58b432832
Hamilton, Murray
9270616b-a8be-40b2-b115-15e0e34cf2ba
d'Orgeville, Celine
c31d890e-489a-43b8-b9e9-f07f1332ef3b
Veitch, Peter J.
681fde4a-f1ba-4c15-9783-48ea035d749d

Munch, Jesper, Rutten, Thomas P., Simakov, Nikita, Hamilton, Murray, d'Orgeville, Celine and Veitch, Peter J. (2008) A new guide star laser using optimized injection mode-locking. SPIE Astronomical Telescopes + Instrumentation, , Marseille, France. 23 - 28 Jun 2008. 10 pp . (doi:10.1117/12.791011).

Record type: Conference or Workshop Item (Paper)

Abstract

We describe a new, improved approach for sodium guide-star lasers for the correction of atmospheric aberrations in telescopes, which satisfies all current requirements for advanced pulse burst waveforms. It makes use of sum frequency generation (SFG) of two pulsed, Q-switched, injection mode-locked Nd:YAG lasers, resulting in a macro-micro pulse-burst output, optimized in power and bandwidth to maximize the fluorescence from the high altitude sodium layer. The approach is robust and power scalable and satisfies the requirements for Multi Conjugate Adaptive Optics (MCAO) for current and future telescopes, including extremely large ground telescopes (ELTs). It is also adaptable for advanced design options. Here we describe the approach in detail, the results from critical design verification experiments, the current status and plans for further work required to demonstrate a complete sodium guide-star laser.

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More information

Published date: 7 July 2008
Additional Information: SPIE Astronomical Telescopes + Instrumentation Marseille, France
Venue - Dates: SPIE Astronomical Telescopes + Instrumentation, , Marseille, France, 2008-06-23 - 2008-06-28
Keywords: Guide star laser, adaptive optics, macro-micro pulse-burst, injection mode-locking, bandwidth control

Identifiers

Local EPrints ID: 415542
URI: http://eprints.soton.ac.uk/id/eprint/415542
PURE UUID: 788043c8-d293-478b-8445-ae36ab397442

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Date deposited: 15 Nov 2017 17:30
Last modified: 08 Jan 2022 10:20

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Contributors

Author: Jesper Munch
Author: Thomas P. Rutten
Author: Nikita Simakov
Author: Murray Hamilton
Author: Celine d'Orgeville
Author: Peter J. Veitch

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