Ultra-Wideband Pulse Generation Based on Cross-Gain Modulation in Fiber Optical Parametric Amplifier

A novel approach to generate ultra-wideband (UWB) monocycle or doublet pulse using cross-gain modulation in fiber optical parametric amplifier is demonstrated in a single experimental setup. The high-speed optical parametric process realizes the signal amplification, idler generation, and pump deple...

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Bibliographic Details
Published in:IEEE photonics technology letters 2009-02, Vol.21 (4), p.212-214
Main Authors: Jia Li, Kuo, B.P.-P., Kin-Yip Wong, K.
Format: Article
Language:English
Subjects:
Cross-gain modulation
Femtosecond
Fiber optics
Modulation
Optical data processing
Optical fiber amplifiers
Optical fibers
Optical modulation
optical parametric amplifier (OPA)
Optical pulse generation
Parametric amplifiers
Photonics
Pulse amplifiers
Pulse generation
Pulse modulation
Pumps
Semiconductor optical amplifiers
Stimulated emission
Ultra wideband technology
ultra-wideband (UWB)
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Summary:A novel approach to generate ultra-wideband (UWB) monocycle or doublet pulse using cross-gain modulation in fiber optical parametric amplifier is demonstrated in a single experimental setup. The high-speed optical parametric process realizes the signal amplification, idler generation, and pump depletion simultaneously within femtosecond response time in the highly nonlinear fiber. After the combination of the three lightwaves with a suitable time delay between them, UWB pulse is obtained. A selective generation of monocycle or doublet pulse can be made by altering the optical attenuators without changing the wavelengths or the powers of the pump and the signal. In our experiment, high-quality UWB monocycle and doublet pulses with a fractional bandwidth of 115% and 126% were generated.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2008.2010058