All-fiber 194 W single-frequency single-mode Yb-doped master-oscillator power-amplifier

M. D. Mermelstein; K. Brar; M. J. Andrejco; A. D. Yablon; M. Fishteyn; C. Headley III; D. J. DiGiovanni

doi:10.1117/12.767490

22 February 2008 All-fiber 194 W single-frequency single-mode Yb-doped master-oscillator power-amplifier

M. D. Mermelstein, K. Brar, M. J. Andrejco, A. D. Yablon, M. Fishteyn, C. Headley III, D. J. DiGiovanni

Proceedings Volume 6873, Fiber Lasers V: Technology, Systems, and Applications; 68730L (2008) https://doi.org/10.1117/12.767490
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

A four-stage all-fiber single-frequency single-mode continuous-wave (cw) master-oscillator power-amplifier (MOPA) at 1083 nm is presented. Small mode area (SMA) and large mode area (LMA) amplifier stages are mode matched with a fiber mode converter (MC) and the signal and pumps are combined with tapered fiber bundles (TFBs). The final power stage uses a LMA Yb doped SBS-suppressing fiber. A single-frequency output power of 194 W is demonstrated with optical net and slope efficiencies of 73% and 80%, respectively. Numerical simulations for the signal output power and the SBS-induced Stokes backscattered power in the 4th stage amplifier agree with the experimental results. Pulse amplifier measurements showed a 400 W peak power output that was limited by the forward output ASE. The SBS reflectivity at 400 W output was only 2.75 x 10^-4.

Citation Download Citation

M. D. Mermelstein, K. Brar, M. J. Andrejco, A. D. Yablon, M. Fishteyn, C. Headley III, and D. J. DiGiovanni "All-fiber 194 W single-frequency single-mode Yb-doped master-oscillator power-amplifier", Proc. SPIE 6873, Fiber Lasers V: Technology, Systems, and Applications, 68730L (22 February 2008); https://doi.org/10.1117/12.767490

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available