40 GHz adiabatic compression of a modulator based dual frequency beat signal using Raman amplification in dispersion decreasing fiber
- 1 January 2004
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 12 (10) , 2187-2192
- https://doi.org/10.1364/opex.12.002187
Abstract
We demonstrate the use of distributed Raman amplification (DRA) in a dispersion decreasing fiber (DDF) for the efficiency enhancement of adiabatic soliton compression of a dual frequency beat signal. We compress a 40 GHz beat signal generated from a LiNbO3 modulator at a driving RF frequency of 20 GHz into ~ 2.2 ps soliton pulses using DRA in a 20 km DDF. The generation of high quality of soliton pulses from the 40 GHz sinusoidal beat signal is readily achieved with a significantly enhanced efficiency using DDF based DRA, compared to the case of using a DDF without DRA or a DSF with DRA.Keywords
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