Ultra low thermal coefficient broadband super-fluorescent fiber source with radiation insensitivity characteristic
Journal
2017 International Workshop on Fiber Optics in Access Network
Journal Volume
2017-December
Pages
1-4
Date Issued
2017
Author(s)
Abstract
In this paper, an Erbium-doped fiber-based, broadband super-fluorescent fiber source (SFS) is proposed and demonstrated. Using a broadband fiber Bragg grating (BFBG) with temperature compensated by attaching it upon a carbon fiber composite, it has a very low mean wavelength drift of 1.26 ppm/�XC in temperature range 0 �XC to 60 �XC. The fluorescent fiber source structure is designed in a double-pass backward pumping structure to increase the amplified spontaneous emission (ASE) power. The output power variation in the whole ambient temperature range is only 0.42 dB and the average 3 dB bandwidth is 17.05 nm. In Gamma radiation experiment using 60 CO y ray, the broadband super-fluorescent source may have the photo-annealing effect to reduce the radiation induced attenuation (RIA) effect. The output power is 9.63 dBm with 3 dB bandwidth of 16.8 nm for the super-fluorescent fiber source from 0 to 30 Krad of 60 CO y ray radiation. The overall bandwidth variation is only 0.7%. The SFS structure we proposed is wavelength and power stable with characteristic of radiation insensitive. It is promising to be used as light source for fiber optic gyroscope.
SDGs
Type
conference paper