Coherent combining efficiency improvement based on a focused conformal projection fiber laser array

Dong Zhi; Yanxing Ma; Xiaolin Wang; Pu Zhou; Lei Si

doi:10.1117/12.2245331

15 November 2016 Coherent combining efficiency improvement based on a focused conformal projection fiber laser array

Dong Zhi, Yanxing Ma, Xiaolin Wang, Pu Zhou, Lei Si

Proceedings Volume 10016, High-Power Lasers and Applications VIII; 100161F (2016) https://doi.org/10.1117/12.2245331
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

A focused conformal projection system (FCPS) has lots of advantages over parallel projection system, especially in near-field coherent beam combining situation. A home-made FCPS based on fiber laser array with adaptive fiber optics collimator is setup and its performances are investigated. First, the coherent beam combining based on the system is successfully achieved with simultaneous end-cap/tilt control and phase-locking control. Then performances of collimated conformal projection system (CCPS) are examined experimentally and consistent with the theoretical results with efficiencies above 80%. At last, we test the feasibility of FCPS in improving coherent combining efficiency. Results show that comparing with CCPS, the CBC efficiency of FCPS improves about 43.5%, from 59.0% to 84.7%, with perfect fitness to the ideal situation.

Citation Download Citation

Dong Zhi, Yanxing Ma, Xiaolin Wang, Pu Zhou, and Lei Si "Coherent combining efficiency improvement based on a focused conformal projection fiber laser array", Proc. SPIE 10016, High-Power Lasers and Applications VIII, 100161F (15 November 2016); https://doi.org/10.1117/12.2245331

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