1/f-noise-free optical sensing with an integrated heterodyne interferometer
oleh: Ming Jin, Shui-Jing Tang, Jin-Hui Chen, Xiao-Chong Yu, Haowen Shu, Yuansheng Tao, Antony K. Chen, Qihuang Gong, Xingjun Wang, Yun-Feng Xiao
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2021-03-01 |
Deskripsi
Suppressing 1/f-shaped low-frequency noise is critical but fundamentally challenging to both electrical and optical transducers. Here, the authors demonstrate a 1/f-noise-free optical sensor with integrated CMOS-compatible heterodyne interferometer and an upconversion amplifying technique, which suppresses the noise by two orders of magnitude.