All-fiber polarization interference filters based on 45°-tilted fiber gratings

Abstract

We report all-fiber polarization interference filters, known as Lyot and Lyot-Őhman filters, based on alternative concatenation of UV-inscribed fiber gratings with structure tilted at 45° and polarization maintaining (PM) fiber cavities. Such filters generate comb-like transmission of linear polarization output. The free spectral range (FSR) of a single-stage (Lyot) filter is PM fiber cavity length dependent, as a 20 cm long cavity showed a 26.6 nm FSR while the 40 cm one exhibited a 14.8 nm FSR. Furthermore, we have theoretically and experimentally demonstrated all-fiber 2-stage and 3-stage Lyot-Őhman filters, giving more freedom in tailoring the transmission characteristics.

©2012 Optical Society of America

In-fiber linear polarizer based on UV-inscribed 45° tilted grating in polarization maintaining fiber

Zhijun Yan, Kaiming Zhou, and Lin Zhang
Opt. Lett. 37(18) 3819-3821 (2012)

All-fiber normal-dispersion single-polarization passively mode-locked laser based on a 45°-tilted fiber grating

Xianglian Liu, Hushan Wang, Zhijun Yan, Yishan Wang, Wei Zhao, Wei Zhang, Lin Zhang, Zhi Yang, Xiaohong Hu, Xiaohui Li, Deyuan Shen, Cheng Li, and Guangde Chen
Opt. Express 20(17) 19000-19005 (2012)

Thulium-doped all-fiber mode-locked laser based on NPR and 45°-tilted fiber grating

Jianfeng Li, Zhijun Yan, Zhongyuan Sun, Hongyu Luo, Yulian He, Zhuo Li, Yong Liu, and Lin Zhang
Opt. Express 22(25) 31020-31028 (2014)

All-fiber passively mode-locked femtosecond laser using a 45º-tilted fiber grating polarization element

Chengbo Mou, Hua Wang, Brandon G. Bale, Kaiming Zhou, Lin Zhang, and Ian Bennion
Opt. Express 18(18) 18906-18911 (2010)

High extinction ratio in-fiber polarizers based on 45° tilted fiber Bragg gratings

Kaiming Zhou, George Simpson, Xianfeng Chen, Lin Zhang, and Ian Bennion
Opt. Lett. 30(11) 1285-1287 (2005)