Title

A liquid crystal-based Fourier optical spectrum analyzer

Authors

Authors

Y. Q. Lu; C. Wong;S. T. Wu

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

IEEE Photonics Technol. Lett.

Keywords

dense wavelength-division multiplexing; (DWDM); dynamic gain-flattening; filter (DGFF); Fourier transform spectrometer; liquid crystal (LC); devices; optical spectrum analyzer (OSA); TECHNOLOGY; Engineering, Electrical & Electronic; Optics; Physics, Applied

Abstract

We propose a liquid crystal (LC)-based cost-effective Fourier optical spectrum analyzer (FOSA) without moving parts. Unlike normal spectrometers, the LC FOSA retrieves the spectrum's Fourier coefficients instead of the direct spectrum measurement by changing different LC states in a number of stages. Besides the common applications, the LC FOSA can precisely read and recover the envelope of a dense wavelength-division-multiplexing spectrum to act as a spectral monitor and then work with a gain-flattening device to control the optical network instantly, and dynamically.

Journal Title

Ieee Photonics Technology Letters

Volume

16

Issue/Number

3

Publication Date

1-1-2004

Document Type

Article

Language

English

First Page

861

Last Page

863

WOS Identifier

WOS:000220018500052

ISSN

1041-1135

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