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83-W single-frequency narrow-linewidth MOPA using large-core erbium-ytterbium Co-doped fiber

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8 Author(s)
Alegria, C. ; Optoelectronics Res. Centre, Univ. of Southampton, UK ; Jeong, Y. ; Codemard, C. ; Sahu, J.K.
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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.

Published in:

Photonics Technology Letters, IEEE  (Volume:16 ,  Issue: 8 )