Slow and fast light effects in semiconductor waveguides for applications in microwave photonics

Weiqi Xue; Yaohui Chen; Filip Öhman; Salvador Sales; José Capmany; Kresten Yvind; Jesper Mørk

doi:10.1117/12.816334

2 February 2009 Slow and fast light effects in semiconductor waveguides for applications in microwave photonics

Weiqi Xue, Yaohui Chen, Filip Öhman, Salvador Sales, José Capmany, Kresten Yvind, Jesper Mørk

Proceedings Volume 7226, Advances in Slow and Fast Light II; 72260W (2009) https://doi.org/10.1117/12.816334
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

We review the theory of slow and fast light effects due to coherent population oscillations in semiconductor waveguides, and potential applications of these effects in microwave photonic systems as RF phase shifters. In order to satisfy the application requirement of 360° RF phase shift at different microwave or millimeter-wave frequency bands, we present several schemes to increase the achievable RF phase shift by enhancing light slow-down or speed-up. These schemes include integrating gain and absorption sections, optical filtering and the exploitation of the initial chirp effects. As a real application in microwave photonics, a widely tunable microwave photonic notch filter with 100% fractional tuning range is also proposed and demonstrated.

Citation Download Citation

Weiqi Xue, Yaohui Chen, Filip Öhman, Salvador Sales, José Capmany, Kresten Yvind, and Jesper Mørk "Slow and fast light effects in semiconductor waveguides for applications in microwave photonics", Proc. SPIE 7226, Advances in Slow and Fast Light II, 72260W (2 February 2009); https://doi.org/10.1117/12.816334

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