Abstract
Homodyne detection relies on the beat between a relatively strong local oscillator (LO) field at the carrier frequency and a signal beam with sidebands centered around the carrier frequency. This type of signal detection, or signal readout, is widely used in quantum optics applications and is expected to be used in advanced interferometric gravitational wave detectors. We investigate experimentally the limitations to making such measurements in a laboratory environment at audio frequencies. We find that beam jitter noise, electronic noise of the photodetectors, and the LO intensity noise can limit the homodyne detection in this frequency band, and we discuss potential solutions.
© 2007 Optical Society of America
Full Article | PDF ArticleMore Like This
Peter Fritschel, Matthew Evans, and Valery Frolov
Opt. Express 22(4) 4224-4234 (2014)
Wenhai Yang, Xiaoli Jin, Xudong Yu, Yaohui Zheng, and Kunchi Peng
Opt. Express 25(20) 24262-24271 (2017)
Xin Wen, Yashuai Han, Jinyu Liu, Jun He, and Junmin Wang
Opt. Express 25(17) 20737-20748 (2017)