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1 May 1996 Suppression of multiple pulse formation in mode-locked laser diodes by gain quenching
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Abstract
We propose a new method for obtaining high-power short optical pulses without trailing pulses from an actively mode-locked laser diode. To quench the residual optical gain, a part of the output is reflected back into the laser diode with an orthogonal polarization and an appropriate time delay. The dynamics of the laser diode were numerically analyzed using traveling-wave rate equations. We show that the trailing pulses caused both by the excess gain and the residual reflection at the laser diode facet are drastically suppressed. We also report experimental results which demonstrate the effectiveness of the proposed method for the reduction of the trailing pulses caused by the excess gain using 1.55 micrometer InGaAsP laser diodes.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hitoshi Kawaguchi and Taku Igarashi "Suppression of multiple pulse formation in mode-locked laser diodes by gain quenching", Proc. SPIE 2693, Physics and Simulation of Optoelectronic Devices IV, (1 May 1996); https://doi.org/10.1117/12.238992
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