Precise and long-term stabilization of the carrier-envelope phase of femtosecond laser pulses using an enhanced direct locking technique
SCIE
SCOPUS
- Title
- Precise and long-term stabilization of the carrier-envelope phase of femtosecond laser pulses using an enhanced direct locking technique
- Authors
- Yu, TJ; Hong, KH; Choi, HG; Sung, JH; Choi, IW; Ko, DK; Lee, J; Kim, J; Kim, DE; Nam, CH
- Date Issued
- 2007-06-25
- Publisher
- OPTICAL SOC AMER
- Abstract
- We demonstrate a long-term operation with reduced phase noise in the carrier-envelope-phase (CEP) stabilization process by employing a double feedback loop and an improved signal detection in the direct locking technique [Opt. Express 13, 2969 (2005)]. A homodyne balanced detection method is employed for efficiently suppressing the dc noise in the f-2f beat signal, which is converted into the CEP noise in the direct locking loop working at around zero carrier-envelope offset frequency (f(ceo)). In order to enhance the long-term stability, we have used the double feedback scheme that modulates both the oscillator pump power for a fast control and the intracavity-prism insertion depth for a slow and high-dynamic-range control. As a result, the in-loop phase jitter is reduced from 50 mrad of the previous result to 29 mrad, corresponding to 13 as in time scale, and the long-term stable operation is achieved for more than 12 hours. (C) 2007 Optical Society of America
- Keywords
- OPTICAL FREQUENCY-MEASUREMENT; NOBEL LECTURE; AMPLIFICATION; SPECTROSCOPY
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/23254
- DOI
- 10.1364/OE.15.008203
- ISSN
- 1094-4087
- Article Type
- Article
- Citation
- OPTICS EXPRESS, vol. 15, no. 13, page. 8203 - 8211, 2007-06-25
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- There are no files associated with this item.
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