Universal Optical Frequency Comb
A. A. Savchenkov, A. B. Matsko, W. Liang, V. S. Ilchenko, D. Seidel,, and L. Maleki

TL;DR
This paper demonstrates the use of whispering gallery mode resonators to generate optical frequency combs across a broad range of frequencies, supported by theoretical design and experimental validation at 794 nm.
Contribution
It introduces a method to generate optical frequency combs at virtually any frequency using engineered resonator morphology and four wave mixing.
Findings
Successful generation of a frequency comb at 794 nm
Theoretical design of resonators with tailored dispersion
Experimental validation supporting the theoretical model
Abstract
We demonstrate that whispering gallery mode resonators can be utilized to generate optical frequency combs based on four wave mixing process at virtually any frequency that lies in the transparency window of the resonator host material. We show theoretically how the morphology of the resonator can be engineered to produce a family of spectrally equidistant modes with anomalous group velocity dispersion appropriate for the comb generation. We present experimental results for a frequency comb centered at 794 nm to support our theoretical findings.
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Taxonomy
TopicsAdvanced Fiber Laser Technologies · Photonic and Optical Devices · Mechanical and Optical Resonators
