Wide Range Tuning of Slow Light Pulse in SOI Photonic Crystal Coupled Waveguide via Folded Chirping

被引：56

作者：

Adachi, Jun ^{[1
,2
]}

Ishikura, Norihiro ^{[1
]}

Sasaki, Hirokazu ^{[1
,2
]}

Baba, Toshihiko ^{[1
,2
]}

机构：

[1] Yokohama Natl Univ, Dept Elect & Comp Engn, Yokohama, Kanagawa 2408501, Japan

[2] Japan Sci & Technol Agcy, Ctr Res & Educ Social Transformat, Tokyo 1020075, Japan

来源：

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 2010年 / 16卷 / 01期

关键词：

Delay line; optical buffer; photonic crystal; photonic crystal waveguide; slow light; LOW-DISPERSION; CHIP; DELAY; BANDWIDTH; SILICON; BAND;

D O I：

10.1109/JSTQE.2009.2032515

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we demonstrate state-of-the-art slow light in silicon-on-insulator photonic crystal coupled waveguide, which allows slow light pulse transmission and its tunable delay by means of structural chirping. The key idea of this study is the application of a folded chirping profile to the structure, instead of the conventional monotonous chirping. It suppresses unwanted spectral oscillation caused by structural disordering and expands the tuning range. By postprocessing an airhole-diameter-chirped device, we show that 0.9-ps-wide slow light pulses are delayed for 72 ps, corresponding to a buffering capacity of 80 bits. In a separate, unchirped device, we demonstrate a tunable delay by applying thermally induced index chirping. Here, a maximum tuning range of 103 ps and a tunable capacity of 22 bits are obtained.

引用

页码：192 / 199

页数：8

共 18 条

[1] Large delay-bandwidth product and tuning of slow light pulse in photonic crystal coupled waveguide [J].

Baba, Toshihiko ;

Kawasaki, Takashi ;

Sasaki, Hirokazu ;

Adachi, Jun ;

Mori, Daisuke .

OPTICS EXPRESS, 2008, 16 (12) :9245-9253

[2] Slow light in photonic crystals [J].

Baba, Toshihiko .

NATURE PHOTONICS, 2008, 2 (08) :465-473

[3] Green light emission in silicon through slow-light enhanced third-harmonic generation in photonic-crystal waveguides [J].

Corcoran, B. ;

Monat, C. ;

Grillet, C. ;

Moss, D. J. ;

Eggleton, B. J. ;

White, T. P. ;

O'Faolain, L. ;

Krauss, T. F. .

NATURE PHOTONICS, 2009, 3 (04) :206-210

[4] Two regimes of slow-light losses revealed by adiabatic reduction of group velocity [J].

Engelen, R. J. P. ;

Mori, D. ;

Baba, T. ;

Kuipers, L. .

PHYSICAL REVIEW LETTERS, 2008, 101 (10)

[5] Direct observation of Bloch harmonics and negative phase velocity in photonic crystal waveguides [J].

Gersen, H ;

Karle, TJ ;

Engelen, RJP ;

Bogaerts, W ;

Korterik, JP ;

van Hulst, NF ;

Krauss, TF ;

Kuipers, L .

PHYSICAL REVIEW LETTERS, 2005, 94 (12)

[6] Slow light with low dispersion and nonlinear enhancement in a lattice-shifted photonic crystal waveguide [J].

Hamachi, Yohei ;

Kubo, Shousaku ;

Baba, Toshihiko .

OPTICS LETTERS, 2009, 34 (07) :1072-1074

[7] Experimental observation of slow light in photonic crystal coupled waveguides [J].

Kawasaki, Takashi ;

Mori, Daisuke ;

Baba, Toshihiko .

OPTICS EXPRESS, 2007, 15 (16) :10274-10281

[8] Why do we need slow light? [J].

Krauss, Thomas F. .

NATURE PHOTONICS, 2008, 2 (08) :448-450

[9] Disorder-induced scattering loss of line-defect waveguides in photonic crystal slabs [J].

Kuramochi, E ;

Notomi, M ;

Hughes, S ;

Shinya, A ;

Watanabe, T ;

Ramunno, L .

PHYSICAL REVIEW B, 2005, 72 (16)

[10] Wideband and low dispersion slow light by chirped photonic crystal coupled waveguide [J].

Mori, D ;

Baba, T .

OPTICS EXPRESS, 2005, 13 (23) :9398-9408

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