Share Email Print

Proceedings Paper

Very high-resolution optical spectral analysis based on Brillouin dynamic gratings
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

In this paper, a novel method for an ultrahigh resolution optical spectrometry based on Brillouin dynamic gratings (BDGs) is proposed and demonstrated. A coherent acoustic wave is generated in an optical fiber through stimulated Brillouin scattering, and the acoustic wave modulated the fiber refractive index forming a BDG. An ultra-narrow bandwidth optical filter is constructed by operating a BDG in a long single-mode fiber (SMF), and the optical spectrometry is performed by sweeping the center wavelength of the BDG-based filter through a swept-tuned laser. In the experiment, a 4-fm (0.5 MHz) spectral resolution is achieved by operating a BDG in a 400-m SMF.

Paper Details

Date Published: 11 November 2014
PDF: 5 pages
Proc. SPIE 9274, Advanced Sensor Systems and Applications VI, 92740K (11 November 2014); doi: 10.1117/12.2073419
Show Author Affiliations
Yongkang Dong, Harbin Institute of Technology (China)
Taofei Jiang, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 9274:
Advanced Sensor Systems and Applications VI
Tiegen Liu; Shibin Jiang; Niels Neumann, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?