Continuous-wave second-harmonic generation in modal phase matched semiconductor waveguides

We report the observation of continuous-wave second-harmonic generation in a modalphase-matched GaAs/AlGaAs waveguide. The heterostructure has been designed to generate a second-harmonic signal via a type-II process with a fundamental signal around 1.55 μm. Continuous wave conversion enables a quantitative estimation of the conversion efficiency. In our case, η=30%±5% W−1 cm−2 is found experimentally.

[1]  A. de Rossi,et al.  Counterpropagating twin photons by parametric fluorescence. , 2002, Physical review letters.

[2]  Xavier Marcadet,et al.  Parametric fluorescence in oxidized aluminum gallium arsenide waveguides , 2001 .

[3]  N. G. Semaltianos,et al.  Third order mode optically pumped semiconductor laser , 2002 .

[4]  A. Fiore,et al.  Phase matching using an isotropic nonlinear optical material , 1998, Nature.

[5]  W. Chew,et al.  The semiconductor waveguide facet reflectivity problem , 1993 .

[6]  Makoto Ohashi,et al.  Determination of quadratic nonlinear optical coefficient of AlxGa1−xAs system by the method of reflected second harmonics , 1993 .

[7]  M. Calligaro,et al.  Second-harmonic generation through optimized modal phase matching in semiconductor waveguides , 2003 .

[8]  R. A. Logan,et al.  Phase‐matched second‐harmonic generation in GaAs optical waveguides by focused laser beams , 1974 .

[9]  M M Fejer,et al.  1.5-microm-band wavelength conversion based on difference-frequency generation in LiNbO3 waveguides with integrated coupling structures. , 1998, Optics letters.

[10]  Ding,et al.  Transversely pumped counterpropagating optical parametric oscillation and amplification. , 1995, Physical review letters.

[11]  M M Fejer,et al.  Measurement of the nonlinear coefficient of orientation-patterned GaAs and demonstration of highly efficient second-harmonic generation. , 2002, Optics letters.

[12]  S. J. B. Yoo,et al.  Quasi‐phase‐matched second‐harmonic generation in AlGaAs waveguides with periodic domain inversion achieved by wafer‐bonding , 1995 .