| 摘要 |
<p>OPTO-OPTICAL LIGHT DEFLECTOR/MODULATOR An opto-optical light deflector/modulator has a tunable laser for providing first and second coherent wave fronts of wavelength (.lambda.0) to travel in a transparent optical active medium to produce an optically generated standing wave that induces a periodic refractive index variation in the medium suitable for diffraction purposes. The device also includes a light source for providing a third wavefront (.lambda.1) to travel in said medium which is diffracted by the periodic refractive index variation induced by the first and second wavefronts.</p> |
