Title :
High-Stability Er-Doped Superfluorescent Fiber Source Incorporating Photonic Bandgap Fiber
Author :
Wang, A. ; Ou, P. ; Feng, L.S. ; Zhang, C.X. ; Cui, X.M. ; Liu, H.D. ; Gan, Z.Z.
Author_Institution :
Sch. of Phys., Peking Univ., Beijing, China
Abstract :
A tunable photonic bandgap fiber filter was incorporated in an Er-doped superfluorescent fiber source to improve its mean wavelength thermal stability. This simple filter was able to successfully compensate the mean wavelength to less than 10 ppm from - 40??C to 70??C. When the environmental temperature was controlled to ??0.5??C, the superfluorescent fiber source (SFS) exhibited a long-term mean wavelength stability of ??1 ppm over 11 h. With 60-mW pump power at 974.2 nm, an optimal Er-doped fiber length of 8 m was found, and the final output power of the compensated SFS reached 8 mW.
Keywords :
erbium; fibre lasers; holey fibres; laser frequency stability; laser tuning; optical pumping; photonic crystals; superradiance; JkJk:Er; power 60 mW; power 8 mW; size 8 m; superfluorescent fiber source; temperature -40 C to 70 C; tunable photonic bandgap fiber filter; wavelength 974.2 nm; wavelength thermal stability; Optical fiber filters; optical fiber fabrication; photonic bandgap fiber (PBGF); superfluorescent fiber source;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2034621
