Simple and Accurate Optical Frequency Domain Ranging Using Off-the-Shelf DFB Lasers Subject to Frequency-Shifted Optical Feedback
IEEE Photonics Technology Letters(2007)
摘要
It is demonstrated that accurate distance measurement may be effected using a commercially available distributed feedback (DFB) semiconductor laser subject to frequency-shifted optical feedback. A simple experimental arrangement is employed wherein a chirped frequency comb is generated in an external cavity DFB laser using an intracavity acoustic-optic modulator. The frequency comb generates a bea...
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关键词
Optical feedback,Frequency domain analysis,Laser feedback,Distributed feedback devices,Semiconductor lasers,Pump lasers,Chirp,Laser tuning,State feedback,Diode lasers
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