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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 17, Iss. 9 — May. 1, 1992
  • pp: 688–690

Deformable grating optical modulator

O. Solgaard, F. S. A. Sandejas, and D. M. Bloom  »View Author Affiliations


Optics Letters, Vol. 17, Issue 9, pp. 688-690 (1992)
http://dx.doi.org/10.1364/OL.17.000688


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Abstract

A new type of light modulator, the deformable grating modulator, based on electrically controlling the amplitude of a micromachined phase grating is described. Mechanical motion of one quarter of a wavelength is sufficient for switching in this device. The small mechanical motion allows the use of structures with high mechanical resonance frequencies. We have developed a deformable grating modulator with a bandwidth of 1.8 MHz and a switching voltage of 3.2 V and have demonstrated modulation with 16 dB of contrast. Smaller devices with bandwidths of as much as 6.1 MHz and predicted switching voltages of less than 10 V were also fabricated.

© 1992 Optical Society of America

History
Original Manuscript: January 9, 1992
Published: May 1, 1992

Citation
O. Solgaard, F. S. A. Sandejas, and D. M. Bloom, "Deformable grating optical modulator," Opt. Lett. 17, 688-690 (1992)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-17-9-688

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