Bragg gratings written in rare-earth-doped double-clad fiber: investigation of photosensitivity and thermal decay

Lijun Li; Yange Liu; Shuzhong Yuan; Xiaoyi Dong

doi:10.1117/12.634938

2 December 2005 Bragg gratings written in rare-earth-doped double-clad fiber: investigation of photosensitivity and thermal decay

Lijun Li, Yange Liu, Shuzhong Yuan, Xiaoyi Dong

Author Affiliations +

Proceedings Volume 6019, Passive Components and Fiber-based Devices II; 60192M (2005) https://doi.org/10.1117/12.634938
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China

Abstract

The photosensitivity and thermal decay of DCF Bragg grating written in Yb³⁺-doped and Er³⁺/Yb³⁺-co-doped DCF are experimentally investigated, respectively. Variation of amplitude of reflective-index modulation and effective reflective index with the UV exposure time are observed. Depend on the photosensitivity relations of hydrogen-loaded rare-earth-doped DCF, we fabricate diversiform reflectivity of DCF Bragg gratings with phase mask method, and the best reflectivity of the grating is 99.9%. The thermal decay characteristics according to the different anneal thermal, 100°C, 150°C, 200°C and 250°C are got. These results are very significant to estimate the properties of grating, such as thermal, wavelength and anneal time.

Citation Download Citation

Lijun Li, Yange Liu, Shuzhong Yuan, and Xiaoyi Dong "Bragg gratings written in rare-earth-doped double-clad fiber: investigation of photosensitivity and thermal decay", Proc. SPIE 6019, Passive Components and Fiber-based Devices II, 60192M (2 December 2005); https://doi.org/10.1117/12.634938

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