High-power wavelength stabilized 970nm tilted cavity laser with a 41.3dB side mode suppression ratio

Autor: I. I. Novikov, Matthias Kuntz, S. S. Mikhrin, Gerrit Fiol, Mikhail V. Maximov, Dieter Bimberg, N. N. Ledentsov, L. Ya. Karachinsky, A. R. Kovsh, Yu. M. Shernyakov, V. A. Shchukin
Rok vydání: 2007
Předmět:
Zdroj: Applied Physics Letters. 91:241112
ISSN: 1077-3118
0003-6951
Popis: We studied wavelength stabilized all-epitaxial 970nm spectral range GaAs∕GaAlAs tilted cavity lasers (TCLs). Single transverse mode edge-emitting 4-μm-wide ridge lasers demonstrated spatial and spectral single mode continuous wave operation with a longitudinal side mode suppression ratio up to 41.3dB. Small signal modulation bandwidth of 3GHz with a resonance peak of 6dB at the relaxation oscillation frequency was measured for a 870μm long device. TCL modulation efficiency is 0.36GHz∕(mA)1∕2. S-parameter measurements indicate that much higher frequencies may be expected in case of more advanced processing and/or shorter cavity lengths.
Databáze: OpenAIRE