Extracting cavity and pulse phases from limited data for coherent pulse stacking

Journal Article · Thu Mar 22 00:00:00 EDT 2018 · Chinese Optics Letters

DOI:https://doi.org/10.3788/COL201816.040701· OSTI ID:1477281

Xu, Yilun ^[1]; Wilcox, Russell ^[2]; Byrd, John ^[2]; Doolittle, Lawrence ^[2]; Du, Qiang ^[2]; Huang, Gang ^[2]; Yang, Yawei ^[2]; Zhou, Tong ^[2]; Yan, Lixin ^[1]; Huang, Wenhui ^[1]; Tang, Chuanxiang ^[1]

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1. Tsinghua Univ., Beijing (China). Department of Engineering Physics and Key Laboratory of Particle and Radiation Imaging, Ministry of Education
2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Accelerator Technology and Applied Physics Division

Coherent pulse stacking (CPS) is a new time-domain coherent addition technique that stacks several optical pulses into a single output pulse, enabling high pulse energy and high average power. A Z-domain model targeting the pulsed laser is assembled to describe the optical interference process. In this study, an algorithm, extracting the cavity phase and pulse phases from limited data, where only the pulse intensity is available, is developed to diagnose optical cavity resonators. We also implement the algorithm on the cascaded system of multiple optical cavities, achieving phase errors less than 1.0°(root mean square), which could ensure the stability of CPS.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Grant/Contract Number: AC02-05CH11231
• OSTI ID: 1477281
• Journal Information: Chinese Optics Letters, Vol. 16, Issue 4; ISSN 1671-7694
• Publisher: Chinese Laser Press
• Country of Publication: United States
• Language: English

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