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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 4 — Feb. 1, 2005
  • pp: 582–590

Diode-pumped Nd:YAG master oscillator power amplifier with high pulse energy, excellent beam quality, and frequency-stabilized master oscillator as a basis for a next-generation lidar system

Martin Ostermeyer, Philip Kappe, Ralf Menzel, and Volker Wulfmeyer  »View Author Affiliations


Applied Optics, Vol. 44, Issue 4, pp. 582-590 (2005)
http://dx.doi.org/10.1364/AO.44.000582


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Abstract

A pulsed, diode-laser-pumped Nd:YAG master oscillator power amplifier (MOPA) in rod geometry, frequency stabilized with a modified Pound–Drever–Hall scheme is presented. The apparatus delivers 33-ns pulses with a maximum pulse energy of 0.5 J at 1064 nm. The system was set up in two different configurations for repetition rates of 100 or 250 Hz. The beam quality was measured to be 1.5 times the diffraction limit at a pulse energy of 405 mJ and a repetition rate of 100 Hz. At 250 Hz with the same pulse energy, the M2 was better than 2.1. The radiation is frequency converted with an efficiency of 50% to 532 nm. This MOPA system will be the pump laser of transmitters for a variety of high-end, scanning lidar systems.

© 2005 Optical Society of America

OCIS Codes
(010.3640) Atmospheric and oceanic optics : Lidar
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3580) Lasers and laser optics : Lasers, solid-state

History
Original Manuscript: March 29, 2004
Revised Manuscript: August 4, 2004
Manuscript Accepted: September 22, 2004
Published: February 1, 2005

Citation
Martin Ostermeyer, Philip Kappe, Ralf Menzel, and Volker Wulfmeyer, "Diode-pumped Nd:YAG master oscillator power amplifier with high pulse energy, excellent beam quality, and frequency-stabilized master oscillator as a basis for a next-generation lidar system," Appl. Opt. 44, 582-590 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-4-582

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