Abstract

Application of a self-sweeping self-pulsing laser for high-resolution spectral analysis of π-shifted FBGs has been demonstrated for the first time. It is shown that the self-sweeping laser generates nearly single-frequency radiation during a single pulse. This fact allows us to characterize the shift-induced dip of 14 MHz width in the FBG reflection spectrum. Nonlinear deformation of the measured ultranarrow spectral structure with increasing incident power is observed. Sampling interval during the scan is shown to be limited by pulse to pulse frequency shift, which is equal to the cavity mode spacing of 6 MHz. The main feature of the applied technique is its simplicity due to the absence of special elements for frequency scanning.

© 2013 IEEE

Single-frequency Bismuth-doped fiber laser with quasi-continuous self-sweeping

Ivan A. Lobach, Sergey I. Kablukov, Mikhail A. Melkumov, Vladimir F. Khopin, Sergey A. Babin, and Evgeny M. Dianov
Opt. Express 23(19) 24833-24842 (2015)

Broad-range self-sweeping of a narrow-line self-pulsing Yb-doped fiber laser

Ivan A. Lobach, Sergey I. Kablukov, Evgeniy V. Podivilov, and Sergey A. Babin
Opt. Express 19(18) 17632-17640 (2011)

Single-frequency self-sweeping Nd-doped fiber laser

Ekaterina K. Kashirina, Ivan A. Lobach, and Sergey I. Kablukov
Opt. Lett. 44(9) 2252-2255 (2019)

Research on a novel composite structure Er³⁺-doped DBR fiber laser with a π-phase shifted FBG

Yanjie Zhao, Jun Chang, Qingpu Wang, Jiasheng Ni, Zhiqiang Song, Haifeng Qi, Chang Wang, Pengpeng Wang, Liang Gao, Zhihui Sun, Guangping Lv, Tongyu Liu, and Gangding Peng
Opt. Express 21(19) 22515-22522 (2013)

Michelson mode selector for spectral range stabilization in a self-sweeping fiber laser

A. Yu. Tkachenko, A. D. Vladimirskaya, I. A. Lobach, and S. I. Kablukov
Opt. Lett. 43(7) 1558-1561 (2018)