Share Email Print

Proceedings Paper

High energy diode-pumped femtosecond oscillator with 1 μJ pulse energy at 9 MHz pulse repetition rate
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

High energy femtosecond oscillators at high pulse repetition rate have a great potential for many applications such as micro- and nano-machining and structuring, waveguide writing in dielectric media, or nonlinear frequency conversion. Up to now most femtosecond oscillators operating at pulse repetition rates higher than 1 MHz were limited at pulse energies of typically a few tens of nanoJoules. We demonstrate a directly diode-pumped Yb:KYW laser oscillator delivering pulse energies up to 1 μJ and pulse durations down to 430 fs, thus pulse peak powers exceeding the MW level. The pulse repetition rate is 9 MHz and the average power is on the 10-W-level. The laser setup is compact and fits in a 60 x 40 cm footprint. We externally compressed the pulse duration of this laser down to about 60fs by focusing the laser into a large mode area micro-structured fiber followed by a compressor module containing a pair of parallel aligned dispersive mirrors. The good coupling efficiency and the high-reflecting dispersive mirrors resulted in an overall compressor transmission of 80%. For a maximum injected pulse energy of 0.53 μJ we obtained up to 0.42 μJ pulse energy after the compressor which corresponds to a peak power of 7 MW.

Paper Details

Date Published: 29 September 2006
PDF: 5 pages
Proc. SPIE 6400, Femtosecond Phenomena and Nonlinear Optics III, 64000E (29 September 2006); doi: 10.1117/12.690591
Show Author Affiliations
Clemens Hönninger, Amplitude Systemes (France)
Eric Mottay, Amplitude Systemes (France)

Published in SPIE Proceedings Vol. 6400:
Femtosecond Phenomena and Nonlinear Optics III
Sean M. Kirkpatrick; Razvan Stoian, Editor(s)

© SPIE. Terms of Use
Back to Top