High-speed delay tuning of slow light in pin-diode-incorporated photonic crystal waveguide

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....

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Bibliographic Details
Published in:Optics letters 2013-08, Vol.38 (15), p.2680-2682
Main Authors: Hayakawa, Ryo, Ishikura, Norihiro, Nguyen, Hong C, Baba, Toshihiko
Format: Article
Language:English
Subjects:
Bias
Delay
High speed
Photonic crystals
PIN diodes
Signal processing
Tuning
Waveguides
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Summary: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.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.38.002680