Radio Frequency Interrogated Actively Mode-Locked Fiber Ring Laser for Sensing Application
This paper proposes an actively mode-locked fiber ring laser for sensing applications. Mode-locking of the laser is achieved by driving an electro-optic amplitude modulator at an RF corresponding to the fundamental beat frequency between the longitudinal modes. The change of the cavity length produces a frequency comb around the beat frequencies. The frequency separation of the comb is found to be linearly proportional to the cavity length change. The sensing mechanism of the device is shown. Temperature measurement is demonstrated using the proposed actively mode-locked fiber ring laser.
J. Huang et al., "Radio Frequency Interrogated Actively Mode-Locked Fiber Ring Laser for Sensing Application," Optics Letters, vol. 37, no. 4, pp. 494-496, Optical Society of America, Feb 2012.
The definitive version is available at https://doi.org/10.1364/OL.37.000494
Electrical and Computer Engineering
National Energy Technology Laboratory (U.S.)
Keywords and Phrases
Amplitude modulators; Beat frequency; Cavity length; Fiber-ring lasers; Frequency combs; Frequency separation; Linearly proportional; Longitudinal modes; Mode-locked; Modelocking; Radio frequencies; Sensing applications; Sensing mechanism, Ring lasers; Temperature measurement, Mode-locked fiber lasers
International Standard Serial Number (ISSN)
Article - Journal
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