Orthogonally polarized bright–dark pulse pair generation in mode-locked fiber laser with a large-angle tilted fiber grating

Zuxing Zhang*, Chengbo Mou, Zhijun Yan, Zhongyuan Sun, Lin Zhang

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

We report on the generation of orthogonally polarized bright–dark pulse pair in a passively mode-locked fiber laser with a large-angle tilted fiber grating (LA-TFG). The unique polarization properties of the LA-TFG, i.e., polarization-dependent loss and polarization-mode splitting, enable dual-wavelength mode-locking operation. Besides dual-wavelength bright pulses with uniform polarization at two different wavelengths, the bright–dark pulse pair has also been achieved. It is found that the bright–dark pulse pair is formed due to the nonlinear couplings between lights with two orthogonal polarizations and two different wavelengths. Furthermore, harmonic mode-locking of bright–dark pulse pair has been observed. The obtained bright–dark pulse pair could find potential use in secure communication system. It also paves the way to manipulate the generation of dark pulse in terms of wavelength and polarization, using specially designed fiber grating for mode-locking.

Original languageEnglish
Article number161
Number of pages6
JournalApplied Physics B
Volume122
Issue number6
Early online date25 May 2016
DOIs
Publication statusPublished - Jun 2016

Bibliographical note

The final publication is available at Springer via http://dx.doi.org/10.1007/s00340-016-6440-x

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