Tunable delays at THz bandwidths are achieved using ultra-fast non-linearities in semiconductor optical amplifiers. In this paper, we report electrically controllable fractional delays of 330% for 600fs pulses propagating through two cascaded semiconductor optical amplifiers.
© 2007 OSA
(230.0230) Optical devices : Optical devices
(230.1150) Optical devices : All-optical devices
(250.0250) Optoelectronics : Optoelectronics
(250.5980) Optoelectronics : Semiconductor optical amplifiers
B. Pesala, F. G. Sedgwick, and C. Chang-Hasnain, "Ultra High Bandwidth THz Tunable Delays Using Cascaded Semiconductor Optical Amplifiers," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest Series (CD) (Optical Society of America, 2007), paper CWJ4.