Chinese Optics Letters, 2015, 13 (9): 091403, Published Online: Sep. 14, 2018
1 μm wavelength swept fiber laser based on dispersion-tuning technique
Abstract
We report a wavelength swept fiber laser at the 1 μm region based on an actively mode-locked dispersion-tuning technique. The ring-cavity laser uses a 70 cm ytterbium-doped fiber as a gain medium. Mode locking is achieved by the direct modulation of the amplitude modulator, and a ~ 1000 m single-mode fiber is used to provide the desired intracavity dispersion. By sine-modulating the modulation frequency, a wavelength swept laser with a range of ~ 30 nm can be achieved at a sweeping rate of 50 Hz. The characteristics of the laser, such as its single-wavelength tuning range, tuning sensitivity, static linewidth and sweeping rate, are also studied experimentally.
Jiawei Mei, Xiaosheng Xiao, Changxi Yang. 1 μm wavelength swept fiber laser based on dispersion-tuning technique[J]. Chinese Optics Letters, 2015, 13(9): 091403.