Dispersion-controlled slow light in photonic crystal waveguides.
Slow light with a markedly low group velocity is a promising solution for optical buffering and advanced time-domain optical signal processing. It is also anticipated to enhance linear and nonlinear effects and so miniaturize functional photonic devices because slow light compresses optical energy in space. Photonic crystal waveguide devices generate on-chip slow light at room temperature with a wide bandwidth and low dispersion suitable for short pulse transmission. This paper first explains the delay-bandwidth product, fractional delay, and tunability as crucial criteria for buffering capacity of slow light devices. Then the paper describes experimental observations of slow light pulse, exhibiting their record high values. It also demonstrates the nonlinear enhancement based on slow light pulse transmission.
Baba
Toshihiko
T
Department of Electrical and Computer Engineering, Yokohama National University, Yokohama 240-8501, Japan. baba@ynu.ac.jp
Adachi
Jun
J
Ishikura
Norihiro
N
Hamachi
Yohei
Y
Sasaki
Hirokazu
H
Kawasaki
Takashi
T
Mori
Daisuke
D
D003460:Crystallization; D008027:Light; D017711:Nonlinear Dynamics; D055095:Optics and Photonics