Ultrafast all-optical modulation on a silicon chip.
We experimentally demonstrate ultrafast all-optical modulation using a micrometer-sized silicon photonic integrated device. The device transmission is strongly modulated by photoexcited carriers generated by low-energy pump pulses. A p-i-n junction is integrated on the structure to permit control of the generated carrier lifetimes. When the junction is reverse biased, carriers are extracted from the device in a time as short as 50 ps, permitting greater than 5 Gbit/s modulation of optical signals on a silicon chip.
Preble
Stefan F
SF
School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA. sfp24@cornell.edu
Xu
Qianfan
Q
Schmidt
Bradley S
BS
Lipson
Michal
M