@article{oai:ynu.repo.nii.ac.jp:00004032,
 author = {Baba, Toshihiko and Kawasaki, Takashi and Sasaki, Hirokazu and Adachi, Jun and Mori, Daisuke},
 issue = {12},
 journal = {Optics express},
 month = {Jun},
 note = {application/pdf, This paper reports two advances in a slow light device consisting of chirped photonic crystal slab coupled waveguide on SOI substrate. One is concerning the delay-bandwidth product, indicating the buffering capacity of the device. We experimentally evaluated a record high value of 57 (a 40ps delay and a 1.4THz bandwidth). We also observed ~1ps wide optical pulse transmission in the cross-correlation measurement. Regarding the pulse as a signal and considering the broadening of the pulse width due to the imperfect dispersion compensation in the device, storage of more than 12 signal bits was confirmed. The other is a wide-range tuning of the pulse delay. We propose a technique for externally controlling the chirping to permit variable delay. We demonstrate tuning of the pulse delay up to 23ps, corresponding to a ~7mm extension of the free space length.},
 pages = {9245--9253},
 title = {Large delay-bandwidth product and tuning of slow light pulse in photonic crystal coupled waveguide},
 volume = {16},
 year = {2008}
}