Chinese Optics Letters, 2020, 18 (7): 071202, Published Online: Jun. 12, 2020
Multi-channel polarized low-coherence interference synchronous demodulation system based on a matrix charge-coupled device Download: 761次
multi-channel synchronous demodulation polarized low-coherence interferometer matrix charge-coupled-device Fabry–Perot sensors
Abstract
A multi-channel synchronous demodulation system of a polarized low-coherence interferometer (PLCI) based on a matrix charge-coupled-device (CCD) is proposed and demonstrated. By using special designs, the system allows the signals from different channels to be received and demodulated synchronously. Multichannel air pressure experiments were implemented to verify the effectiveness of the proposed system. The experiment results showed that the Fabry–Perot (F–P) sensors could be demodulated synchronously with a high tolerance for light sources and sensors, which indicated that any sensor and light source that can be demodulated by PLCI were allowed to be employed, leading to a wide application in the field of multichannel synchronous measurement.
Shuang Wang, Jie Zhou, Junfeng Jiang, Kun Liu, Qun Han, Yanan Duan, Rundong Wang, Tiegen Liu. Multi-channel polarized low-coherence interference synchronous demodulation system based on a matrix charge-coupled device[J]. Chinese Optics Letters, 2020, 18(7): 071202.