Information real-time measurement system for ultrafast light field
A fast light and photoelectric detection technology, which is applied in the direction of selection devices, instruments, electrical components, etc. of multiplexing systems, can solve the problems of poor real-time performance and limitations
Active Publication Date: 2020-01-21
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
However, due to the limitations of the iterative speed of the algorithm used and the frame rate of equipment such as spectrometers, the real-time performance of traditional measurement solutions is poor
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[0042] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0043] Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiment...
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Provided is an information real-time measurement system for an ultrafast optical field, comprising a continuous cascaded time lens optical path (11), a first spectrum splitting component (12), a first photoelectric detection array (13), a time lens time-frequency conversion optical path (21), a second photoelectric detection array (22), a time-stretched single-mode fiber (31), a second spectrum splitting component (32), and a third photoelectric detection array (33); the continuous cascaded time lens optical path (11), the first spectrum splitting component (12), and the first photoelectric detection array (13) are used to measure the time domain information of each spatial point position in an ultrafast optical field signal; the time lens time-frequency conversion optical path (21) and the second photoelectric detection array (22) are used to measure the first frequency domain information of the continuous light part of the ultrafast optical field signal; the time-stretched single-mode fiber (31), the second spectrum splitting component (32), and the third photoelectric detection array (33) are used to measure the second frequency domain information of the pulsed light part of the ultrafast optical field signal. The information real-time measurement system for an ultrafast optical field can achieve real-time measurement of time domain information and various frequency domain information of an ultrafast optical field signal.
Description
technical field [0001] The present application relates to the technical field of ultrafast signal measurement, in particular to a real-time measurement system for ultrafast light field information. Background technique [0002] In recent years, ultrafast light fields such as ultrafast lasers (light fields on the order of picoseconds and femtoseconds) have shown great advantages in simulating many types of cross-scale physical scenes and processes, and can reproduce only extreme or critical Physical phenomena that occur under certain conditions, such as black hole and white hole event horizons in simulated astronomy, strange waves and turbulence in fluid mechanics, Bose-Einstein condensation in thermodynamics, etc. The detection and characterization of these processes put forward high requirements on the time and frequency domain resolution, time domain record length and real-time performance of ultrafast measurement technology. [0003] At present, the time-frequency inform...
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IPC IPC(8): G01J11/00H04Q11/00
CPCG01J11/00H04Q11/0062
Inventor 杨中民林巍孟超文晓晓乔田
Owner SOUTH CHINA UNIV OF TECH