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Simplified Brillouin fiber slow light systems in loss regime using step current modulation

Sang Hoon Chin, Luc Thévenaz A

We propose a simple technique to realize Brillouin slow light in nearly transparent regime. A current-modulated semiconductor laser by a step function is used as Brillouin pump to generate a Brillouin loss doublet.

Jan 1, 20110 citations

Simple technique to achieve fast light in gain regime using Brillouin scattering

Sanghoon Chin, Miguel González‐Herráez, Luc Thévenaz A

We describe a novel technique based on stimulated Brillouin scattering for propagating fast light (signal advancement) with low distortion in optical fibers. The essence of the technique relies on the presence of two separate gain resonances in the Brillouin gain spectrum generated by cascading two different fiber segments showing distinct Brillouin shifts. It can be shown that in between these two gain spectra, a reduced group index can be obtained. To further optimize our results, we broadened the pump spectrum by introducing a modulation of the current driving the pump laser to achieve a delay-bandwidth product close to the optimum conditions. This scheme eliminates the need of an external optical modulator and offers the advantage of a much reduced signal distortion.We describe a novel technique based on stimulated Brillouin scattering for propagating fast light (signal advancement) with low distortion in optical fibers. The essence of the technique relies on the presence of two separate gain resonances in the Brillouin gain spectrum generated by cascading two different fiber segments showing distinct Brillouin shifts. It can be shown that in between these two gain spectra, a reduced group index can be obtained. To further optimize our results, we broadened the pump spectrum by introducing a modulation of the current driving the pump laser to achieve a delay-bandwidth product close to the optimum conditions. This scheme eliminates the need of an external optical modulator and offers the advantage of a much reduced signal distortion.

Optics ExpressJan 1, 200716 citations

Simple source for broadband Brillouin slow light in optical fibers

Sanghoon Chin, Luc Thévenaz A

Spontaneously broadened emission from a distributed feedback laser diode perated just above threshold is used as a pump source in Brillouin slow light systems. The pump spectrum could this way be extended to several GHz.

OECC 2010 Technical DigestJul 5, 20100 citations

Broad-bandwidth Brillouin slow light in optical fibers

M.G. Herraez, Kwang Yong Song, Luc Thévenaz A

We experimentally demonstrate that Brillouin slow light with an arbitrary large bandwidth can be readily obtained in conventional optical fibers using a simple and inexpensive pump spectral broadening technique.

Optical Fiber Communication ConferenceJan 1, 20064 citations

Brillouin Cross-Gain Modulation and 10−4 c Slow-Light

Shmuel Sternklar, Eyal Sarid, Tal Arditi +1 more

We introduce a new method of achieving cross-gain modulation and slow light using the Brillouin nonlinearity in an optical fiber. We demonstrate approx. 10−4 c group velocity using this technique with milliwatts of optical power.

Conference on Lasers and Electro-OpticsJan 1, 20090 citations

Time delay enhancement in stimulated-Brillouin-scattering-based slow-light systems

Thomas Schneider, Markus Junker, Kai-Uwe Lauterbach

We show a simple method of time delay enhancement in slow-light systems based on the effect of stimulated Brillouin scattering. The method is based on the reduction of the absolute Brillouin gain by a loss produced by an additional pump laser. With this method we achieved pulse delays of nearly 100 ns in a standard single-mode fiber. In the presented approach the delay or acceleration of optical signals is decoupled from their amplification or attenuation, which allows the adaptation of the pulse amplitudes to the given application.We show a simple method of time delay enhancement in slow-light systems based on the effect of stimulated Brillouin scattering. The method is based on the reduction of the absolute Brillouin gain by a loss produced by an additional pump laser. With this method we achieved pulse delays of nearly 100 ns in a standard single-mode fiber. In the presented approach the delay or acceleration of optical signals is decoupled from their amplification or attenuation, which allows the adaptation of the pulse amplitudes to the given application.

Optics LettersJan 10, 200744 citations

Simplified Brillouin fiber slow light systems in loss regime using step current modulation

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Simplified Brillouin fiber slow light systems in loss regime using step current modulation

Abstract

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