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
Full Article | PDF ArticleMore Like This
Zhigang Zhang, Tadashi Nakagawa, Kenji Torizuka, Takeyoshi Sugaya, and Katsuyuki Kobayashi
Opt. Lett. 24(23) 1768-1770 (1999)
S. N. Tandon, J. T. Gopinath, H. M. Shen, G. S. Petrich, L. A. Kolodziejski, F. X. Kärtner, and E. P. Ippen
Opt. Lett. 29(21) 2551-2553 (2004)
G. J. Spühler, L. Krainer, E. Innerhofer, R. Paschotta, K. J. Weingarten, and U. Keller
Opt. Lett. 30(3) 263-265 (2005)