Title :
Ultrafast unidirectional beam deflection using an electrooptic traveling phase grating with periodic domain inversion
Author :
Khayim, Tattee ; Maruko, Akira ; Shibuya, Kyoji ; Morimoto, Akihiro ; Kobayashi, Tetsuro
Author_Institution :
Sch. of Eng. Sci., Osaka Univ., Japan
fDate :
8/1/2001 12:00:00 AM
Abstract :
We report a new electrooptic traveling-phase grating with periodic domain inversion and its application to ultrafast unidirectional beam deflection. The electrooptic traveling phase grating utilizes Raman-Nath diffraction to spatially separate input light to many diffracted beams on the far-field plane. Then, unidirectional optical beam deflection can be achieved by adjusting amplitudes and phases of the diffracted beams. In the experiment, ultrafast unidirectional deflection by the traveling phase grating is demonstrated at 16.25 GHz using a simple phase-only control
Keywords :
Fourier transform optics; diffraction gratings; electro-optical deflectors; electro-optical modulation; high-speed optical techniques; 16.25 GHz; Fourier transform plane; LiTaO3; Raman-Nath diffraction; diffracted beam amplitude; diffracted beam phase; diffracted beams; electrooptic traveling phase grating; far-field plane; input light spatial separation; periodic domain inversion; phase-only control; quasivelocity matching; ultrafast unidirectional beam deflection; Diffraction gratings; Electrooptic deflectors; Frequency; Microwave propagation; Optical beams; Optical diffraction; Optical modulation; Optical pulses; Phase modulation; Ultrafast optics;
Journal_Title :
Quantum Electronics, IEEE Journal of
