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Optics Letters

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  • Vol. 36, Iss. 9 — May. 1, 2011
  • pp: 1572–1574

Direct generation of 81 nJ pulses and external compression to a subpicosecond regime with a 4.9 MHz chirped-pulse multipass-cavity Cr 4 + :forsterite oscillator

Huseyin Cankaya, Selcuk Akturk, and Alphan Sennaroglu  »View Author Affiliations


Optics Letters, Vol. 36, Issue 9, pp. 1572-1574 (2011)
http://dx.doi.org/10.1364/OL.36.001572


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Abstract

We report direct generation of 81 nJ chirped pulses from a room-temperature, Kerr lens mode-locked Cr 4 + :forsterite oscillator operating at 1258 nm . To increase the pulse energy, the pulse repetition rate of the short x-type resonator was lowered from 143 to 4.9 MHz by the addition of a q-preserving multipass cavity, which provided an additional effective optical path length of 59.4 m . The duration of the chirped pulses was around 5.5 ps with a spectral width of 21 nm . The pulses were externally compressed to 607 fs by using a diffraction grating pair. To our knowledge, this is the highest reported pulse energy directly generated from a room-temperature mode-locked Cr 4 + :forsterite laser.

© 2011 Optical Society of America

OCIS Codes
(140.3460) Lasers and laser optics : Lasers
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.3600) Lasers and laser optics : Lasers, tunable
(140.4050) Lasers and laser optics : Mode-locked lasers
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 20, 2011
Revised Manuscript: March 19, 2011
Manuscript Accepted: March 24, 2011
Published: April 22, 2011

Citation
Huseyin Cankaya, Selcuk Akturk, and Alphan Sennaroglu, "Direct generation of 81 nJ pulses and external compression to a subpicosecond regime with a 4.9 MHzchirped-pulse multipass-cavity Cr4+:forsterite oscillator," Opt. Lett. 36, 1572-1574 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-9-1572

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