Dual-resonances approach to broadband cavity-assisted optical signal processing beyond the carrier relaxation rate. Heuck, M., Kristensen, P., T., & Mork, J. Optics letters, 39(11):3189-92, 6, 2014.
Dual-resonances approach to broadband cavity-assisted optical signal processing beyond the carrier relaxation rate. [pdf]Paper  Dual-resonances approach to broadband cavity-assisted optical signal processing beyond the carrier relaxation rate. [link]Website  abstract   bibtex   
We propose and analyze a differential control scheme for cavity-enhanced optical signal processing devices based on carrier nonlinearities. The scheme relies on two optical cavities to increase the bandwidth beyond the limit given by the slowest carrier relaxation rate of the medium. Practical implementations are envisioned using photonic crystal cavities, and the controls may be electrical or optical in nature.

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