Broadband Brillouin slow light based on multifrequency phase modulation in optical fibers

Abstract

We theoretically analyze and experimentally demonstrate broadband Brillouin slow light using multiple equal-amplitude spectral lines generated by multifrequency phase modulation. The theoretical analysis shows that $4n-1$ equal-amplitude spectral lines can be obtained if the modulation signal comprises the fundamental frequency and the odd harmonic waves, where n denotes the number of frequency components in the modulation signal. In experiment, 7 and 11 equal-amplitude spectral lines are obtained and Brillouin bandwidths of 340 and $570\mathrm{MHz}$ are gained, respectively. The experimental results also indicate that the slope of the broadening factor for the delayed signal decreases in the case of broad and flattened Brillouin gain spectrum.

© 2008 Optical Society of America

Slow light in multi-line Brillouin gain spectrum

Zhiwei Lu, Yongkang Dong, and Qiang Li
Opt. Express 15(4) 1871-1877 (2007)

Low distortion Brillouin slow light in optical fibers using AM modulation

Aldo Minardo, Romeo Bernini, and Luigi Zeni
Opt. Express 14(13) 5866-5876 (2006)

Reducing group-velocity-dispersion-dependent broadening of stimulated Brillouin scattering slow light in an optical fiber by use of a single pump laser

Liyong Ren and Yasuo Tomita
J. Opt. Soc. Am. B 25(5) 741-746 (2008)

Slow and fast light via SBS in optical fibers for short pulses and broadband pump

V. P. Kalosha, Liang Chen, and Xiaoyi Bao
Opt. Express 14(26) 12693-12703 (2006)

Arbitrary-bandwidth Brillouin slow light in optical fibers

Miguel González Herráez, Kwang Yong Song, and Luc Thévenaz
Opt. Express 14(4) 1395-1400 (2006)