We have demonstrated wavelength stabilization in an 821-nm AlGaAs three-section tunable distributed Bragg reflector (DBR) semiconductor laser diode (LD) that consists of active, phase-controlled, and DBR regions. We injected two separate, complementary currents into the active and the phase-controlled regions in the DBR-LD to suppress wavelength shift. This modulation method was applied to the LD fundamental wave in a second-harmonic-generation (SHG) laser, and the oscillating wavelength was maintained within the phase-matching acceptance range of the SHG device during modulation. A peak blue-violet light power of 62 mW was obtained for the ideal modulation waveform.
© 2003 Optical Society of America
[Optical Society of America ]
(140.3490) Lasers and laser optics : Lasers, distributed-feedback
(140.5960) Lasers and laser optics : Semiconductor lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing
(230.7390) Optical devices : Waveguides, planar
Y. Kitaoka, K. Kasazumi, A. Morikawa, T. Yokoyama, T. Sugita, K. Mizuuchi, K. Yamamoto, T. Takayama, S. Takigawa, and M. Yuri, "Wavelength stabilization of a distributed Bragg reflector laser diode by use of complementary current injection," Opt. Lett. 28, 914-916 (2003)