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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 30, Iss. 3 — Feb. 1, 2005
  • pp: 329–331

220-fs erbium-ytterbium:glass laser mode locked by a broadband low-loss silicon/germanium saturable absorber

F. J. Grawert, J. T. Gopinath, F. Ö. Ilday, H. M. Shen, E. P. Ippen, F. X. Kärtner, S. Akiyama, J. Liu, K. Wada, and L. C. Kimerling  »View Author Affiliations


Optics Letters, Vol. 30, Issue 3, pp. 329-331 (2005)
http://dx.doi.org/10.1364/OL.30.000329


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Abstract

We demonstrate femtosecond performance of an ultrabroadband high-index-contrast saturable Bragg reflector consisting of a silicon/silicon dioxide/germanium structure that is fully compatible with CMOS processing. This device offers a reflectivity bandwidth of over 700 nm and subpicosecond recovery time of the saturable loss. It is used to achieve mode locking of an Er-Yb:glass laser centered at 1540 nm, generating 220-fs pulses, with what is to our knowledge the broadest output spectrum to date.

© 2005 Optical Society of America

OCIS Codes
(320.7080) Ultrafast optics : Ultrafast devices
(320.7090) Ultrafast optics : Ultrafast lasers
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors

Citation
F. J. Grawert, J. T. Gopinath, F. Ö. Ilday, H. M. Shen, E. P. Ippen, F. X. Kärtner, S. Akiyama, J. Liu, K. Wada, and L. C. Kimerling, "220-fs erbium-ytterbium:glass laser mode locked by a broadband low-loss silicon/germanium saturable absorber," Opt. Lett. 30, 329-331 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-3-329

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