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Spectral synthesis using an array of micro gratings.

Guangya Zhou1, Fook Siong Chau

  • 1Micro and Nano Systems Initiative, Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore. mpezgy@nus.edu.sg

Optics Express
|June 12, 2008
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Summary

This study introduces a new spectral synthesis system using in-plane micro gratings. This novel design simplifies spectral synthesis by leveraging optical phase modulation, reducing complexity compared to traditional methods.

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Area of Science:

  • Optical Engineering
  • Spectroscopy
  • Micro-optics

Background:

  • Conventional spectral synthesis often relies on out-of-plane micromirror arrays.
  • These systems can be complex and computationally intensive.
  • Challenges exist in simplifying the spectral synthesis process for broader applications.

Purpose of the Study:

  • To present a novel spectral synthesis system design.
  • To explore the use of in-plane moving micro gratings for spectral synthesis.
  • To simplify the synthetic spectra problem through a new optical phase modulation mechanism.

Main Methods:

  • Design and implementation of a spectral synthesis system utilizing an array of in-plane moving micro gratings.
  • Exploitation of the nondispersive characteristic of optical phase modulation.
  • Reduction of the synthetic spectra problem to conventional phase retrieval.

Main Results:

  • Demonstration of a simplified spectral synthesis process.
  • Successful application of in-plane micro gratings for optical phase modulation.
  • Effective reduction of spectral synthesis complexity.

Conclusions:

  • The proposed system offers a simplified approach to spectral synthesis.
  • In-plane micro gratings provide a viable alternative to conventional micromirror arrays.
  • The nondispersive optical phase modulation mechanism is key to simplifying spectral synthesis.