NDLI: Directly diode-pumped, short pulse CPA laser delivering energies in the 10 to 50 mJ range

Content Provider	IEEE Xplore Digital Library
Author	Bagnoud, V. Videau, L. Rouyer, C.
Copyright Year	2002
Description	Author affiliation: Lab. de Phys. du Laser, CEA-CESTA, Le Barp, France (Bagnoud, V.; Videau, L.; Rouyer, C.)
Abstract	Summary form only given. Today, injection of high-energy short-pulse laser chains requires an energy of several tens of millijoules and a somehow broad spectrum. Several methods have been proposed to achieve this goal, including optical parametric chirped pulse amplification (CPA) or regenerative amplification in Ti:sapphire. In both cases, a high energy pump laser is required at wavelengths where laser diodes can not be used. As a result, the main limitation is the available pumping energy. We demonstrate an alternative method based on a directly diode-pumped Nd:phosphate glass rod where the emphasis is put on spectrum control and extraction efficiency in order to successfully amplify sub-picosecond laser pulses to the 10-50 mJ level of energy. The laser chain, based on the CPA technique, is of typical composition. We use a commercial directly diode pumped short pulse oscillator delivering 100 MHz laser pulses with a 8 nm large spectrum where mode locking is achieved by a SESAM. Then the laser pulses are temporally stretched to 800 ps in a two-lens stretcher. The pulse to be amplified is selected by a Pockels cell and sent to the amplifier where it undergoes regenerative amplification by a factor of 10/sup 6/ at a 1 Hz repetition rate, before it is released and sent to the compressor.
Sponsorship	IEEE/Lasers & Electro-Opt. Soc. OSA-Opt. Soc. America Quantum Electron. Div. Eur. Phys. Soc. Opt. Soc. Japanese Quantum Electron. Joint Group
Starting Page	383
Ending Page	384
File Size	330723
Page Count	2
File Format	PDF
ISBN	1557527067
DOI	10.1109/CLEO.2002.1034111
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-05-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Optical Soc. of America
Subject Keyword	Stimulated emission Chirp Pulse amplifiers Laser mode locking Laser excitation Optical pumping Diodes Nonlinear optics Pump lasers Optical pulses
Content Type	Text
Resource Type	Article

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