Patent Number: 6,169,624

Title: Achromatic optical modulators

Abstract: Micromachined grating modulators which exhibit achromatic behavior are described. One embodiment includes narrow and wide ribbons suspended above a substrate and alternatingly interleaved with each other. Narrow and wide reflective surfaces are formed on the narrow and wide ribbons. Compensating reflective surfaces are formed in the gaps between and beneath the ribbons. The width of the ribbons as well as the width of the gaps and the compensating reflecting surfaces are designed so that incident optical beam can be modulated or attenuated in an achromatic fashion.

Inventors: Godil; Asif A. (Mountain View, CA), Bloom; David M. (Palo Alto, CA)


International Classification: G02B 26/08 (20060101); G02B 6/35 (20060101); G02B 6/26 (20060101); G02B 5/18 (20060101); G02B 6/34 (20060101); H01S 5/00 (20060101); G02B 026/00 (); G02B 006/26 (); G02F 001/03 (); G02F 001/29 (); G02F 001/295 ()

Expiration Date: 01/02/2018