Abstract
We present new results of measurements of ultrafast gain saturation in GaAlAs laser amplifiers using a pump and tunable probe technique. To our knowledge these are the first subpicosecond, time-resolved, non-degenerate four-wave mixing experiments performed in laser diodes. Our tunable probe allows the observation, throughout the gain bandwidth of the amplifier, of gain changes caused by the passage of a fixed wavelength, 350 fs pump pulse. We observe a similar gain saturation at all wavelengths, indicating a mechanism other than spectral hole burning is responsible for the observed subpicosecond cross-modulation.
© 1988 Optical Society of America
PDF ArticleMore Like This
MORRIS P. KESLER and ERICH P. IPPEN
WN3 Optical Fiber Communication Conference (OFC) 1988
C. Y. Sung, T. B. Norris, Y. Lam, J. Singh, X. K. Zhang, and P. K. Bhattacharya
CMH6 Conference on Lasers and Electro-Optics (CLEO:S&I) 1996
Takaaki Mukai and Tadashi Saitoh
WD1 International Quantum Electronics Conference (IQEC) 1988