Chin. Phys. Lett.  1998, Vol. 15 Issue (1): 32-34    DOI:
Original Articles |
Measurement of the Optical Coherence of a Femtosecond Pulsed Laser by Shearing Interferometry with a Double-Frequency Grating
MING Hai;QIAN Jiang-yuan;XIE Jian-ping;A. B. Fedotov1;X. Xiao;M. M. T. Loy1
Department of Physics, University of Science and Technology of China, Hefei 230026 1Department of Physics, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong
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MING Hai, QIAN Jiang-yuan, XIE Jian-ping et al  1998 Chin. Phys. Lett. 15 32-34
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Abstract Shearing interferometry of an ion-etched holographic double-frequency grating is used to measure the optical coherence of femtosecond pulsed lasers. The experimental results show that the optical coherence of the femtosecond light beam is not only related to the spectral width and size of the light source but is also related to the pulse duration and mode-locked laser state. The results of theoretical analysis and numerical calculation are also given. Application of this research is also discussed.

Keywords: 42.79.-e      42.55.Rz     
Published: 01 January 1998
PACS:  42.79.-e (Optical elements, devices, and systems)  
  42.55.Rz (Doped-insulator lasers and other solid state lasers)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y1998/V15/I1/032
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MING Hai
QIAN Jiang-yuan
XIE Jian-ping
A. B. Fedotov
X. Xiao
M. M. T. Loy
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