Title :
Integrated QPM sum-frequency generation interferometer device for ultrafast optical switching
Author :
Suhara, T. ; Ishizuki, H.
Author_Institution :
Dept. of Electron., Osaka Univ., Japan
Abstract :
An all-optical switching device consisting of a LiNbO3 waveguide Mach-Zehnder interferometer with a quasi-phase-matched (QPM) sum-frequency generation (QPM-SFG) section, and a thermooptic phase shifter in the arms was designed and fabricated. Picosecond gate switching of signal wave by control pulses both in 1.5-μm wavelength band is demonstrated in a device having a QPM-SFG section of 5-mm length.
Keywords :
Mach-Zehnder interferometers; electro-optical switches; lithium compounds; optical communication equipment; optical design techniques; optical fabrication; optical frequency conversion; optical phase matching; optical planar waveguides; thermo-optical effects; 1.5 mum; 1.5-/spl mu/m wavelength band; 5 mm; LiNbO/sub 3/ waveguide Mach-Zehnder interferometer; all-optical switching device; control pulses; integrated QPM sum-frequency generation interferometer device; optical design; optical fabrication; picosecond gate switching; quasi-phase-matched sum-frequency generation section; signal wave; thermooptic phase shifter; ultrafast optical switching; Integrated optics; Nonlinear optical devices; Nonlinear optics; Optical devices; Optical interferometry; Optical signal processing; Optical waveguides; Optical wavelength conversion; Phase shifting interferometry; Ultrafast optics;
Journal_Title :
Photonics Technology Letters, IEEE
