Second-Harmonic Generation in the Nonlinear Relief Grating Coupler
There are many techniques for the wavelength conversion by using the nonlinear effects. The second harmonic generation (SHG) is attracted by many workers to obtain the blue light. Tien1 investigated SHG in form of coherent Cerenkov radiation, but did not obtain the high efficient SHG because of the large propagation loss. Taniuchi2 demonstrated that the efficient guided-wave frequency doubler can extract blue light where the Cerenkov radiation scheme is employed. In this scheme, the phase-matching condition between the fundamental guided wave and the second harmonic radiation wave can be automatically satisfied by adjusting the waveguide parameters.1 Recently, SHG is investigated by using the grating couplers. Suhara3 studied the SHG in the waveguide with uniform and chirped gratings both theoretically and experimentally. Matsumoto4 analyzed the quasi-phase-matched second harmonic generation by backward propagation interaction.
KeywordsSecond Harmonic Generation Harmonic Generation Harmonic Wave Wavelength Conversion Maximum Radiation
Unable to display preview. Download preview PDF.
- 2.T. Taniuchi, and K. Yamamoto, Second harmonic generation with semiconductor laser diode, Japanese Applied Physics, 56:1637(1987).Google Scholar
- 5.W. S. Park and S. R. Seshadri, Theory of the grating coupler for a grounded-dielectric-slab waveguide, Proc. BEE Pt. H, 3:149(1985).Google Scholar