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Photonic Generation of UWB Pulses Using a Nonlinear Optical Loop Mirror and Its Distribution Over a Fiber Link

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4 Author(s)
Tianye Huang ; Wuhan Nat. Lab. for Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan, China ; Jia Li ; Sun, Junqiang ; Chen, L.R.

A novel approach is proposed for generating ultra-wideband (UWB) doublet pulses using a nonlinear optical loop mirror (NOLM). In this scheme, a polarization controller is used to shift the NOLM transfer function so that for a fixed operating condition (pump power), we can access the nonlinear portion of the transfer function. The UWB doublet pulses are then modulated using on-off keying and transmitted over a 10-km span of standard single-mode fiber to assess system performance. Error-free transmission is achieved with a power penalty of 1.5 dB compared with the back-to-back measurement.

Published in:

Photonics Technology Letters, IEEE  (Volume:23 ,  Issue: 17 )