Experiments and Perturbative Analysis of Dammann-Grating-Based Aperture Filling in a Passive Coherent Beam Combination

Autor:	Qihong Lou, Yifeng Yang, Man Hu, Jun Zhou, Bing He, Ye Zheng, Houkang Liu
Rok vydání:	2014
Předmět:	Optical amplifier Physics Brightness Distributed feedback laser Optics business.industry Aperture Fiber laser Laser power scaling Grating business Atomic and Molecular Physics and Optics Beam (structure)
Zdroj:	Journal of Lightwave Technology. 32:2220-2227
ISSN:	1558-2213 0733-8724
Popis:	A Dammann-grating-based aperture filling technology is demonstrated in a passive coherent beam combination fiber amplifier array, which is phase-locked using an all-optical feedback loop. The maximum output power is 206 W. The combined efficiency of a three channels aperture filling is discussed and demonstrated to vary with the output power. Perturbative factors leading to the loss of the combined efficiency are theoretically simulated and the key factor is the residual phase error. Theoretical and experimental results show that this technology has good potential to achieve higher brightness in a single beam.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::40e0907ca18207086e07cb0619f2e559 https://doi.org/10.1109/jlt.2014.2322863 Zobrazit plný text záznamu