We demonstrate the high-speed electrical delay tuning of slow light pulses using Si photonic crystal waveguides. The device has an i-region-chirped pin diode, within which thermo-optic and carrier plasma effects are generated by forward bias. The former changes the delay up to 62 ps for the DC bias. The latter changes the delay for 1 Gbps pseudo random bit sequence tuning signals, which will be applicable to advanced time-domain optical signal processing.
© 2013 Optical Society of America
Original Manuscript: May 1, 2013
Revised Manuscript: June 15, 2013
Manuscript Accepted: June 24, 2013
Published: July 22, 2013
Ryo Hayakawa, Norihiro Ishikura, Hong C. Nguyen, and Toshihiko Baba, "High-speed delay tuning of slow light in pin-diode-incorporated photonic crystal waveguide," Opt. Lett. 38, 2680-2682 (2013)