We demonstrate bandwidth enhancement of external- and direct-modulated lasers using a tunable optical equalizer. Modulation bandwidth of >50 GHz for LiNbO3 modulators was obtained. The equalizer permits the increased-speed and chirp-reduction simultaneously for direct-modulated VCSELs.
© 2008 Optical Society of America
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.2020) Lasers and laser optics : Diode lasers
(230.0230) Optical devices : Optical devices
(230.4110) Optical devices : Modulators
K. Hasebe, X. Zhao, T. Sakaguchi, F. Koyama, C. J. Chang-Hasnain, N. Nishiyama, C. Caneau, and C. Zah, "Bandwidth Enhancement with Tunable Optical Equalizer for High Speed Intensity Modulation," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optical Society of America, 2008), paper CME1.
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