Modeling self-organized coherent fiber laser array

Pu Zhou; Zilun Chen; Xiaojun Xu; Jing Hou; Zejin Liu

doi:10.1117/12.755751

6 February 2008 Modeling self-organized coherent fiber laser array

Pu Zhou, Zilun Chen, Xiaojun Xu, Jing Hou, Zejin Liu

Proceedings Volume 6823, High-Power Lasers and Applications IV; 68230G (2008) https://doi.org/10.1117/12.755751
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

Self-organized coherent laser array seems to be a promising method for coherent combining fiber lasers. Phase locking is realized by mutual energy injection, without any active phase stabilization, requirement of the fiber length or the output power for individual lasers. In this paper, rate equations describing time evolution of the complex, slow varying electric field and gain of an array of single transverse and longitudinal mode lasers proposed in former literature was referred to for modeling the self-organized fiber laser array. The process for phase-locking evolution of each individual laser in a fiber laser array was modeled and analyzed theoretically and numerically. For the case of an array containing 2 or more than 4 lasers, the array will be in an out-of-phase mode, with a phase difference of π between adjacent laser output modes. For an array containing 3 lasers, phase difference between adjacent lasers would be ±2π/3. We will cite experiments to validate our verdict. We can also obtain by investigating on the model that more powers can be extracted than the summation individual free running lasers. Those phenomenons have been reported but not explained. At the end of this paper, we perform system level analysis on the fiber laser array numerically. We find that with the number of lasers increasing, the array will have a more critical condition on detuning frequency for phase locking.

Citation Download Citation

Pu Zhou, Zilun Chen, Xiaojun Xu, Jing Hou, and Zejin Liu "Modeling self-organized coherent fiber laser array", Proc. SPIE 6823, High-Power Lasers and Applications IV, 68230G (6 February 2008); https://doi.org/10.1117/12.755751

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