Efficient dynamic coherence transfer relying on offset locking using optical phase-locked loop
Proceedings of SPIE(2017)
Abstract
We design and experimentally demonstrate a highly efficient coherence transfer based on composite optical phase-locked loop comprising multiple feedback servo loops. The heterodyne offset-locking is achieved by conducting an acousto-optic frequency shifter in combination with the current tuning and the temperature controlling of the semiconductor laser. The adaptation of the composite optical phase-locked loop enables the tight coherence transfer from a frequency comb to a semiconductor laser in a fully dynamic manner.
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Key words
Tunable lasers,optical phase-locked loop,metrology,heterodyne,microwave photonics,optical frequency comb,instrumentation
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