Title :
Slow Light in a Semiconductor Waveguide for True-Time Delay Applications in Microwave Photonics
Author :
Öhman, Filip ; Yvind, Kresten ; Mork, Jesper
Author_Institution :
Tech. Univ. of Denmark, Lyngby
Abstract :
We have investigated the slow and fast light properties of a semiconductor waveguide device employing concatenated gain and absorber sections. This letter presents the experimental results as well as theoretical modeling. A large phase shift of 110deg and a true-time delay of more than 150 ps are demonstrated. The combination of amplitude and phase control of the modulated signal shows great promise for applications within microwave photonics.
Keywords :
microwave photonics; optical waveguides; semiconductor optical amplifiers; absorber sections; amplitude control; concatenated gain; fast light properties; microwave photonics; phase control; phase shift; semiconductor optical amplifier; semiconductor waveguide; slow light properties; true-time delay applications; Amplitude modulation; Concatenated codes; Fast light; Microwave devices; Microwave photonics; Phase control; Phase modulation; Propagation delay; Semiconductor waveguides; Slow light; Microwave photonics; optical signal processing; semiconductor optical amplifier (SOA); slow light;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.901435
