The Fabrication of Deuterium Loaded Fiber Bragg Grating and Its Spectral Characteristics in Thermal Annealing
Abstract
Previous results showed that the non-reversible(hystersis loop) of Bragg wave length shifting in thermal cycling of the Fiber Bragg Orating which is a high germanium doped optical fiber and high pressure hydrogen loaded was due to the diffusion out of the H2 residue in thermal annealing. In addition, the 0-H absorption peak (1 .38nm) causes signal attenuation and stability problem in FBG applications. We demonstrated the fabrication of the D2 loaded FBG with high stability of Bragg wave length in thermal annealing at temperature up to 250 C. The spectrum characteristics of the D2 loaded FBG compare to the H2 loaded FBG is presented. In general, Delta LambaB of the D2 loaded FBG is narrower than H2 loaded , and LambaB of the D2 loaded FBG is more stable than H2 loaded in thermal annealing. A model base on the UV photo-induced index change in BFG core with D2 and H2 loaded to explain the spectrum characteristics between D2 and H2 loaded FBG is discussed. Keywords: Fiber Bragg grating, deuterium loading
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2000
- Accession Number
- ADP011231
Entities
People
- C. C. Wang
- C. T. Yu
- M. C. Shih
- T. J. Chuangx
Organizations
- National Taiwan Ocean University