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 11:
12. 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 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,
an optical switch that alternately inputs the two interference signals to a spectrum analyzer,
the spectrum analyzer that disperses each interference signal alternately entered from the optical switch, into the wavelength spectrum, and then measures an intensity of each dispersed continuous wavelength signal, and
a computing device that outputs an intensity difference of two measurement signals measured by the spectrum analyzer during a switching period of the optical switch.