Frequency doubling of a passively mode-locked monolithic distributed Bragg reflector diode laser
D. Jedrzejczyk, T. Prziwarka, A. Klehr, O. Brox, H. Wenzel, K. Paschke, and G. Erbert
Published in:
Appl. Opt., vol. 53, no. 15, pp. 3262-3266 (2014).
Abstract:
In this work, frequency doubling of a passively mode-locked 3.5 mm long monolithic distributed Bragg reflector diode laser is investigated experimentally. At 1064 nm, optical pulses with a duration of 12.4 ps are generated at a repetition rate of 13 GHz and a peak power of 825mW, resulting in an average power of 133 mW. Second-harmonic generation is carried out in a periodically poled MgO-doped LiNbO3 ridge waveguide at a normalized nonlinear conversion efficiency of 930%/W. A maximum average secondharmonic power of 40.9 mW, corresponding to a pulse energy of 3.15 pJ, is reached in the experiment at an opto-optical conversion efficiency of 30.8%. The normalized nonlinear conversion efficiency in mode-locked operation is more than 2 times larger compared to continuous-wave operation.
Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, D-12489 Berlin, Germany
OCIS codes:
(140.2020) Diode lasers; (140.3490) Lasers, distributed-feedback; (140.4050) Mode-locked lasers; (190.2620) Harmonic generation and mixing; (190.4390) Nonlinear optics, integrated optics; (140.7300) Visible lasers.
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