High-fidelity, broadband stimulated-Brillouin-scattering-based slow light using fast noise modulation

Yunhui Zhu, Myungjun Lee, Mark A Neifeld, Daniel J. Gauthier

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We demonstrate a 5-GHz-broadband tunable slow-light device based on stimulated Brillouin scattering in a standard highly-nonlinear optical fiber pumped by a noise-current-modulated laser beam. The noisemodulation waveform uses an optimized pseudo-random distribution of the laser drive voltage to obtain an optimal flat-topped gain profile, which minimizes the pulse distortion and maximizes pulse delay for a given pump power. In comparison with a previous slow-modulation method, eyediagram and signal-to-noise ratio (SNR) analysis show that this broadband slow-light technique significantly increases the fidelity of a delayed data sequence, while maintaining the delay performance. A fractional delay of 0.81 with a SNR of 5.2 is achieved at the pump power of 350 mW using a 2-km-long highly nonlinear fiber with the fast noise-modulation method, demonstrating a 50% increase in eye-opening and a 36% increase in SNR in the comparison.

Original languageEnglish (US)
Pages (from-to)687-697
Number of pages11
JournalOptics Express
Volume19
Issue number2
DOIs
StatePublished - Jan 17 2011

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signal to noise ratios
broadband
modulation
scattering
pumps
pulses
statistical distributions
waveforms
optical fibers
laser beams
fibers
electric potential
profiles
lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

High-fidelity, broadband stimulated-Brillouin-scattering-based slow light using fast noise modulation. / Zhu, Yunhui; Lee, Myungjun; Neifeld, Mark A; Gauthier, Daniel J.

In: Optics Express, Vol. 19, No. 2, 17.01.2011, p. 687-697.

Research output: Contribution to journalArticle

Zhu, Yunhui ; Lee, Myungjun ; Neifeld, Mark A ; Gauthier, Daniel J. / High-fidelity, broadband stimulated-Brillouin-scattering-based slow light using fast noise modulation. In: Optics Express. 2011 ; Vol. 19, No. 2. pp. 687-697.
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