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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 21 — Nov. 1, 2008
  • pp: 2473–2475

Generation of 287 W , 5.5 ps pulses at 78 MHz repetition rate from a cryogenically cooled Yb:YAG amplifier seeded by a fiber chirped-pulse amplification system

Kyung-Han Hong, Aleem Siddiqui, Jeffrey Moses, Juliet Gopinath, John Hybl, F. Ömer Ilday, Tso Yee Fan, and Franz X. Kärtner  »View Author Affiliations


Optics Letters, Vol. 33, Issue 21, pp. 2473-2475 (2008)
http://dx.doi.org/10.1364/OL.33.002473


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Abstract

We generate linearly polarized, 287 W average-power, 5.5 ps pulses using a cryogenically cooled Yb:YAG amplifier at a repetition rate of 78 MHz . An optical-to-optical efficiency of 41% is obtained at 700 W pump power. A 6 W , 0.4 nm bandwidth picosecond seed source at 1029 nm wavelength is constructed using a chirped-pulse fiber amplification chain based on chirped volume Bragg gratings. The combination of a fiber amplifier system and a cryogenically cooled Yb:YAG amplifier results in good spatial beam quality at large average power. Low nonlinear phase accumulation as small as 5.1 × 10 3 rad in the bulk Yb:YAG amplifier supports power scalability to a > 10 kW level without being affected by self-phase modulation. This amplification system is well suited for pumping high-power high-repetition-rate optical parametric chirped-pulse amplifiers.

© 2008 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: June 17, 2008
Revised Manuscript: September 3, 2008
Manuscript Accepted: September 8, 2008
Published: October 23, 2008

Citation
Kyung-Han Hong, Aleem Siddiqui, Jeffrey Moses, Juliet Gopinath, John Hybl, F. Ömer Ilday, Tso Yee Fan, and Franz X. Kärtner, "Generation of 287 W, 5.5 ps pulses at 78 MHz repetition rate from a cryogenically cooled Yb:YAG amplifier seeded by a fiber chirped-pulse amplification system," Opt. Lett. 33, 2473-2475 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-21-2473

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