Wavelength locking of Er-doped random fiber laser. (10th April 2019)

• Record Type: Journal Article
• Authors: Hu, Bo; Zhang, Weili; Ma, Rui; Guo, Jiayu; Ludwig, Arne; Rao, Yunjiang
• Is Part Of: Laser physics letters. Volume 16:Number 5(2019:May)
• Publication Date: 2019-04-10
• Subjects: random laser -- fiber grating -- laser mode locking -- laser stability -- erbium doped fiber; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/aaff4d
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: This paper demonstrates the wavelength locking of a coherent random lasing system, i.e. an Erbium-doped random fiber laser with a disordered array of fiber Bragg gratings. To lock lasing modes of the disordered system, an external seed light from a tunable laser was introduced into the cavity. It was found that different emission wavelengths/modes can be selected to emit separately through injection locking. The wavelength fluctuation of the output is less than 0.01%, and the power fluctuation is less than 4%. The proposed method is also applicable to general disordered systems, providing an efficient way to control or select light emission in these systems.