Title :
83-W single-frequency narrow-linewidth MOPA using large-core erbium-ytterbium Co-doped fiber
Author :
Alegria, C. ; Jeong, Y. ; Codemard, C. ; Sahu, J.K. ; Alvarez-Chavez, J.A. ; Fu, L. ; Ibsen, M. ; Nilsson, J.
Author_Institution :
Optoelectronics Res. Centre, Univ. of Southampton, UK
Abstract :
We demonstrate a continuous-wave (CW) single-frequency narrow-linewidth laser at 1552 nm with an output power of 83 W using a master-oscillator power amplifier configuration. A seed from an all-fiber distributed feedback-laser with a linewidth of 13 kHz was polarization scrambled and boosted through a chain of amplifiers in an all-fiber configuration. The last amplification stage consisted of a highly efficient cladding-pumped large-core erbium-ytterbium co-doped fiber which helped increase nonlinear thresholds.
Keywords :
distributed feedback lasers; erbium; optical fibre amplifiers; optical pumping; power amplifiers; ytterbium; 13 kHz; 1552 nm; 83 W; 83-W single-frequency narrow-linewidth MOPA; CW Er:Yb all-fiber DFB laser; Er; Yb; all-fiber configuration; all-fiber distributed feedback laser; continuous wave single-frequency narrow-linewidth laser; large-core erbium-ytterbium codoped fiber; master-oscillator power amplifier; nonlinear thresholds; polarization scrambling; Brillouin scattering; Erbium-doped fiber lasers; Laser beam cutting; Optical fiber amplifiers; Optical fiber polarization; Optical fibers; Power amplifiers; Power generation; Power lasers; Pump lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.830520
