OPTICAL MODULE, SIGNAL PROCESSING SYSTEM, AND SIGNAL PROCESSING METHOD

• Main Authors: TOZUKA HIROMICHI, KOTANI KYOSUKE, SUZUKI TOMOHITO, IWAZAKI YUYA, SUGIMOTO TATSUYA
• Format: Patent
• Language: Chinese; English
• Published: 21.09.2021
• Subjects: COLORIMETRY; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; RADIATION PYROMETRY; TESTING

An optical module signal processing unit has a voltage signal control unit that controls voltage signals and an intensity acquisition unit that obtains intensities, so that a voltage signal having a frequency for resonating a movable mirror is applied to a mirror device. During each of a plurality of cycles among consecutive P cycles of a voltage signal, intensity acquisition processing obtains: the measured light intensity of interference light in measured light, M times at intervals of a first time, on the basis of the frequency of the voltage signal; and addition values for the mutually corresponding measured light intensities for the same number of times. In addition, the intensity acquisition processing obtains: the laser light intensity of interference light for laser light, during each of the plurality of cycles, N times at intervals of a second time on the basis of the voltage signal frequency; and addition values for the mutually corresponding laser light intensities for the same number of times. 光模块