Demonstration of an ultra-high frequency picosecond pulse generator using an SBS frequency comb and self phase-locking

We propose a method to generate phase-locked pulses in the picosecond regime by using Stimulated Brillouin Scattering (SBS). The phase-locked comb is generated using only long length of fiber and a single frequency CW pump laser. We show that there is a phase relationship between multiple Stokes pea...

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Bibliographic Details
Published in:Optics express 2012-08, Vol.20 (17), p.19455-19462
Main Authors: Loranger, Sébastien, Iezzi, Victor Lambin, Kashyap, Raman
Format: Article
Language:English
Subjects:
Computer-Aided Design
Equipment Design
Equipment Failure Analysis
Refractometry - instrumentation
Signal Processing, Computer-Assisted - instrumentation
Telecommunications - instrumentation
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Summary:We propose a method to generate phase-locked pulses in the picosecond regime by using Stimulated Brillouin Scattering (SBS). The phase-locked comb is generated using only long length of fiber and a single frequency CW pump laser. We show that there is a phase relationship between multiple Stokes peaks in a cavity, which directly leads to pulsing without the need to add a mode-locking component. This generates highly coherent pulses in the order of ~10 ps. The repetition frequency, which is very stable is in the order of tens of GHz, is based on the SBS frequency shift and has a linear dependence with temperature (1 MHz/°C). Such a laser could therefore be used in high-speed optical clocks and optical communication system. This system allows the pulses to be generated at any wavelength by simply changing the pump wavelength.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.20.019455