Title :
Ultranarrow-Linewidth Brillouin/Erbium Fiber Laser Based on 45-cm Erbium-Doped Fiber
Author :
Mo Chen ; Zhou Meng ; Yichi Zhang ; Jianfei Wang ; Wei Chen
Author_Institution :
Acad. of Ocean Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
We demonstrate an ultranarrow-linewidth Brillouin/erbium fiber laser (BEFL), in which 45-cm commercialized erbium-doped fiber (EDF) acts as both the Brillouin and linear gain media. The Brillouin pump threshold of the BEFL is in submilliwatts. Its 980-nm pump threshold is only 15 mW. The BEFL presents an ultranarrow linewidth of 40 Hz. This single-frequency BEFL presents a number of applications in many high-coherence fields.
Keywords :
Brillouin spectra; erbium; fibre lasers; laser beams; optical pumping; Brillouin media; Brillouin pump threshold; commercialized erbium-doped fiber; distance 45 cm; linear gain media; single-frequency BEFL; ultranarrow-linewidth brillouin/erbium fiber laser; wavelength 980 nm; Cavity resonators; Gain; Laser theory; Optical attenuators; Optical pumping; Pump lasers; Scattering; Brillouin/Erbium fiber laser; Brillouin/erbium fiber laser; Ultra-narrow linewidth; Ultranarrow linewidth; stimulated Brillouin scattering;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2015.2399354
