Patent ID: 6292304
Filing Date: 2001-09-18
Classification: G02B

Abstract:
An apparatus for generating an independent coherent beam array, comprising:a single light source;a first collimating lens for collimating the beam emanated from the light source;a phase grating for splitting the collimated beam from the first collimating lens into a plurality of diffraction beams;a Fourier transform lens for focusing the diffraction beams from the phase grating into beam spots by Fourier transformation;a reflective spatial light modulator for selectively reflecting the beam spots from the Fourier transform lens;a polarizing beam splitter for passing the beam spots from the Fourier transform lens toward the reflective spatial light modulator, and changing the path of the beams reflected by the reflective spatial light modulator; anda second collimating lens for collimating the beams reflected by the reflective spatial light modulator and incident via the polarizing beam splitter.