Optical injection-induced timing jitter reduction in gain-switched single-mode vertical-cavity surface-emitting lasers

A. Consoli; J. M. Noriega; A. Valle; L. Pesquera; I. Esquivias; F. J. López-Hernández

doi:10.1117/12.854230

27 April 2010 Optical injection-induced timing jitter reduction in gain-switched single-mode vertical-cavity surface-emitting lasers

A. Consoli, J. M. Noriega, A. Valle, L. Pesquera, I. Esquivias, F. J. López-Hernández

Author Affiliations +

Proceedings Volume 7720, Semiconductor Lasers and Laser Dynamics IV; 77200H (2010) https://doi.org/10.1117/12.854230
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

We report an experimental and theoretical investigation of the effect of optical injection on the characteristics of optical pulses generated by gain-switching a 1550 nm single transverse mode vertical-cavity surface-emitting laser (VCSEL). Under continuous wave operation the VCSEL emits in a linear polarization along the whole current range. The experimental analysis of the effect of external optical injection on the timing jitter, maximum power, and pulse width of optical pulses generated by gain-switching the single mode VCSEL is performed for several repetition rates and for different values of the detuning between the frequency of the optical injection and the VCSEL. Experimental results show that for 1 GHz repetition frequency, jitter reductions greater than 70 % can be obtained over a 47 GHz frequency detuning range with a slight increase of 22% in pulse width with respect to the solitary case. A clear anticorrelation between the maximum power and pulse width is also obtained. A theoretical study is also performed by using a model that incorporates both spatial dependence of carrier density and optical field profiles. The two polarization modes are also taken into account in the model. The theoretical results are in good agreement with the experimental results.

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A. Consoli, J. M. Noriega, A. Valle, L. Pesquera, I. Esquivias, and F. J. López-Hernández "Optical injection-induced timing jitter reduction in gain-switched single-mode vertical-cavity surface-emitting lasers", Proc. SPIE 7720, Semiconductor Lasers and Laser Dynamics IV, 77200H (27 April 2010); https://doi.org/10.1117/12.854230

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