L-band GHz femtosecond passively harmonic mode-locked Er-doped fiber laser based on nonlinear polarization rotation

Ling, Yuanda, Huang, Qianqian, Zou, Chuanhang, Xing, Zhikun, Yan, Zhijun, Zhao, Chang, Zhou, Kaiming, Zhang, Lin and Mou, Chengbo (2019). L-band GHz femtosecond passively harmonic mode-locked Er-doped fiber laser based on nonlinear polarization rotation. IEEE Photonics Journal ,

Abstract

Via using an L-band optimized in-fiber polarizing grating device, a GHz L-band femtosecond passively harmonic mode-locked (PHML) Er-doped fiber laser based on nonlinear polarization rotation (NPR) is firstly demonstrated. 4.22 GHz pulses with the duration of 810 fs and super-mode suppression ratio (SMSR) of 32 dB are obtained under the pump power of 712 mW corresponding to 215th harmonic order. The central wavelength of 4.22 GHz pulses is 1581.7 nm with 10.1 nm 3-dB bandwidth. Furthermore, under this fixed pump power, higher harmonic orders can also be attained by rotating the polarization controllers (PCs) properly. The highest repetition rate we obtained is 7.41 GHz with the SMSR of 20.7 dB.

Publication DOI: https://doi.org/10.1109/JPHOT.2019.2927771
Divisions: Engineering & Applied Sciences > Aston Institute of Photonics Technology
Engineering & Applied Sciences
Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Additional Information: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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Related URLs: https://ieeexpl ... cument/8758902/ (Publisher URL)
Published Online Date: 2019-07-10
Authors: Ling, Yuanda
Huang, Qianqian
Zou, Chuanhang
Xing, Zhikun
Yan, Zhijun
Zhao, Chang
Zhou, Kaiming ( 0000-0002-6011-1912)
Zhang, Lin ( 0000-0002-1691-5577)
Mou, Chengbo

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