The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 06, 2022

Filed:

May. 27, 2020
Applicant:

Institute of Physics, Chinese Academy of Sciences, Beijing, CN;

Inventors:

Shaobo Fang, Beijing, CN;

Zhiyi Wei, Beijing, CN;

Pei Huang, Beijing, CN;

Yitan Gao, Beijing, CN;

Kun Zhao, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 11/00 (2006.01); G02F 1/35 (2006.01); G01J 9/02 (2006.01); G02B 27/10 (2006.01); G02B 27/14 (2006.01); H01S 3/13 (2006.01); H01S 3/123 (2006.01); H01S 3/10 (2006.01); H01S 3/00 (2006.01); G02B 26/06 (2006.01);
U.S. Cl.
CPC ...
H01S 3/1307 (2013.01); G01J 9/02 (2013.01); G01J 11/00 (2013.01); G02B 26/06 (2013.01); G02B 27/1006 (2013.01); G02B 27/141 (2013.01); G02F 1/353 (2013.01); G02F 1/3528 (2021.01); H01S 3/0014 (2013.01); H01S 3/10046 (2013.01); H01S 3/123 (2013.01);
Abstract

Methods and devices are described for performing an all-phase measurement of an ultra-fast laser pulse having a spectral range of greater than one octave. The ultra-fast laser pulse may be split into a first beam comprising a fundamental light with a wavelength λand a second beam comprising a light with a wavelength 2λ. The light with the wavelength 2λmay be frequency doubled to a light with a wavelength λto generate an interference with the fundamental light. Fourier transform may be performed on an interference spectrum of the interference, and a relative envelope delay (RED) between the fundamental light and the frequency doubled light and a carrier envelope phase (CEP) may be acquired based on a result of the Fourier transform.


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