Title :
Waveguide quasi-phase-matched sum-frequency generation device for high-efficiency optical sampling
Author :
Suhara, T. ; Ishizuki, H. ; Fujimura, M. ; Nishihara, H.
Author_Institution :
Dept. of Electron., Osaka Univ., Japan
Abstract :
A LiNbO3 waveguide quasi-phase-matched sum-frequency generation (SFG) device using a fan out domain-inverted grating for picosecond optical sampling was designed and fabricated. Sampling of signal waves at 1.5-μm wavelength by 25-ps sampling pulses generated by a gain-switched laser diode is demonstrated in a device of 5 mm length with a normalized SFG efficiency as high as 43%/W.
Keywords :
high-speed optical techniques; lithium compounds; optical frequency conversion; optical phase matching; optical planar waveguides; 1.5 mum; 25 ps; 5 mm; LiNbO/sub 3/; LiNbO/sub 3/ waveguide quasi-phase-matched sum-frequency generation device; fan out domain-inverted grating; gain-switched laser diode; high-efficiency optical sampling; normalized SFG efficiency; optical pulse generation; picosecond optical sampling; signal wave sampling; waveguide quasi-phase-matched sum-frequency generation device; High speed optical techniques; Nonlinear optics; Optical devices; Optical modulation; Optical pulse compression; Optical signal processing; Optical waveguides; Optical wavelength conversion; Sampling methods; Ultrafast optics;
Journal_Title :
Photonics Technology Letters, IEEE
