Patent ID: 11902495
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. The ultrafast camera system of claim 11, wherein the timing detector comprises
a loop interferometer that modulates the optical signal using the reference signal in a loop where the input optical signal is divided and the divided signals circulate in different directions, and outputs two interference signals generated from interference between the signals circulating the loop,
a first spectrum analyzer that receives a first signal predetermined in the two interference signals, disperses the first signal into the wavelength spectrum, and measures an intensity of dispersed continuous wavelength signal,
a second spectrum analyzer that receives a second signal before being input to the loop interferometer, disperses the second signal into the wavelength spectrum, and measures an intensity of dispersed continuous wavelength signals, and
a computing device that calculates an optical power correction value being a ratio between a reference optical power and the intensity measured by the second spectrum analyzer, and corrects the intensity measured by the first spectrum analyzer with the optical power correction value.