title: Microwave-assisted frequency domain measurement of fiber-loop ring-down system.
abstract: A new frequency domain measurement method for a fiber-loop ring-down system is proposed in this Letter. Compared to traditional time domain measurement, this method uses a microwave modulated continuous wave (CW) laser as a light source, making full use of the duty cycle to achieve enhanced measurement efficiency. By measuring the amplitude modulation over a frequency span, this technique can be used to determine the ring-down time in the frequency domain, which will then be used to calculate the loss in the ring.
authors.forename: Baokai
authors.initials: B
authors.lastname: Cheng
authors.forename: Liwei
authors.initials: L
authors.lastname: Hua
authors.forename: Qi
authors.initials: Q
authors.lastname: Zhang
authors.forename: Jincheng
authors.initials: J
authors.lastname: Lei
authors.forename: Hai
authors.initials: H
authors.lastname: Xiao