17 October 2012 Gap FBG and its application in tunable narrow linewidth fiber laser
Author Affiliations +
Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84214J (2012) https://doi.org/10.1117/12.974813
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
Abstract
A gap fiber Bragg grating (g-FBG) is fabricated by cutting a uniform FBG in the middle to introduce a small air gap between the two sections. Numerical and experimental investigations show that the g-FBG has the characteristics of both a phase shifted FBG and a Fizeau interferometer. The peak transmission wavelength of the g-FBG can be tuned by adjusting the air-gap longitudinally or transversely with respect to the fiber center-axis. With a g-FBG as tunable intra-cavity filter, a tunable fiber ring laser with a narrow line-width is demonstrated. The wavelength tuning range of the laser is 0.12 nm with a output power flatness better than 0.9 dB. The 3 dB spectral line-width is less than 12 pm and output power is 3.68 dBm.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yuanhong Yang, Yuanhong Yang, Xiaozhe Zhang, Xiaozhe Zhang, Jin-jin Guo, Jin-jin Guo, Wei Jin, Wei Jin, Mingwei Yang, Mingwei Yang, } "Gap FBG and its application in tunable narrow linewidth fiber laser", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84214J (17 October 2012); doi: 10.1117/12.974813; https://doi.org/10.1117/12.974813
PROCEEDINGS
4 PAGES


SHARE
Back to Top