Stable optical phase modulation with micromirrors.

Journal Article (Journal Article)

We measure the motional fluctuations of a micromechanical mirror using a Michelson interferometer, and demonstrate its interferometric stability. The position stability of the micromirror is dominated by the thermal mechanical noise of the structure. With this level of stability, we utilize the micromirror to realize an optical phase modulator by simply reflecting light off the mirror and modulating its position. The resonant frequency of the modulator can be tuned by applying a voltage between the mirror and an underlying electrode. Full modulation depth of ±π is achieved when the mirror resonantly excited with a sinusoidal voltage at an amplitude of 11 V.

Full Text

Duke Authors

Cited Authors

  • Knoernschild, C; Kim, T; Maunz, P; Crain, SG; Kim, J

Published Date

  • January 30, 2012

Published In

Volume / Issue

  • 20 / 3

Start / End Page

  • 3261 - 3267

PubMed ID

  • 22330564

Electronic International Standard Serial Number (EISSN)

  • 1094-4087

Digital Object Identifier (DOI)

  • 10.1364/OE.20.003261


  • eng

Conference Location

  • United States