The minimum detectable rotation rate of fiber gyroscope employing a rare Earth-doped superfiuorescent laser (SFL) is theoretically proportional to the inverse square root of the spectrum linewidth AX of the employed SFL due to its excess noise. We examine the short-term resolution of a fiber gyroscope using an Er-doped SFL with Al codoping that has larger AX value than that without Al. The experimental results agree well with the theoretical prediction. The Er-doped SFL with Al can successfully improve the resolution as compared with that without Al.
|Number of pages||3|
|Journal||IEEE Photonics Technology Letters|
|Publication status||Published - 1991 Mar|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering