Memory Speed Analysis of Optical RAM and Optical Flip-Flop Circuits Based on Coupled SOA-MZI Gates

被引:37
作者
Fitsios, Dimitrios [1 ]
Vyrsokinos, Konstantinos [2 ]
Miliou, Amalia [1 ]
Pleros, Nikos [1 ]
机构
[1] Aristotle Univ Thessaloniki, Dept Informat, Thessaloniki, Greece
[2] Ctr Res & Technol Hellas, Informat & Telemat Inst, Thessaloniki, Greece
关键词
Mach-Zehnder interferometer; optical data processing; optical flip-flop; optical memory; optical switching; semiconductor optical amplifier; WAVELENGTH CONVERSION; RING LASERS; LOW-POWER; CHIP;
D O I
10.1109/JSTQE.2011.2150201
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
We demonstrate analytical frequency-domain transfer function expressions for an optical random access memory (RAM) cell that employs two SOA-based ON/OFF switches and two coupled SOA-MZI gates forming an optical flip-flop. Our theoretical model relies on first-order perturbation theory approximations applied for the first time to coupled optical switching structures, resulting to an optical RAM cell frequency response that allows for a qualitative and quantitative analysis of optical RAM memory speed and performance characteristics and their dependence on certain RAM cell device parameters. We show that the transfer function of an optical RAM cell and its incorporated flip-flop device exhibits periodic resonance frequencies resembling the behavior of optical ring resonator configurations. Its free spectral range is mainly dictated by the length of the waveguide that enables the coupling of the two SOA-MZI gates, yielding this coupling length as the dominant memory speed determining factor. The obtained results are in close agreement with experimental observations, demonstrating that optimized RAM cell designs with waveguide coupling lengths lower than 5 mm can enable RAM operation at memory speeds well beyond 40 GHz.
引用
收藏
页码:1006 / 1015
页数:10
相关论文
共 29 条
[11]  
Li B, 2009, PS: 2009 INTERNATIONAL CONFERENCE ON PHOTONICS IN SWITCHING, P228, DOI 10.1109/PS.2009.5307766
[12]   An ultra-small, low-power, all-optical flip-flop memory on a silicon chip [J].
Liu, Liu ;
Kumar, Rajesh ;
Huybrechts, Koen ;
Spuesens, Thijs ;
Roelkens, Guenther ;
Geluk, Erik-Jan ;
de Vries, Tjibbe ;
Regreny, Philippe ;
Van Thourhout, Dries ;
Baets, Roel ;
Morthier, Geert .
NATURE PHOTONICS, 2010, 4 (03) :182-187
[13]   Packaged and hybrid integrated all-optical flip-flop memory [J].
Liu, Y. ;
McDougall, R. ;
Hill, M. T. ;
Maxwell, G. ;
Zhang, S. ;
Harmon, R. ;
Huijskens, F. M. ;
Rivers, L. ;
Dorren, H. J. S. ;
Poustie, A. .
ELECTRONICS LETTERS, 2006, 42 (24) :1399-1400
[14]   Synchronously Loaded Optical Packet Buffer [J].
Mack, John P. ;
Burmeister, Emily F. ;
Poulsen, Henrik N. ;
Bowers, John E. ;
Blumenthal, Daniel J. .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2008, 20 (21-24) :1757-1759
[15]   An 8 x 8 InP Monolithic Tunable Optical Router (MOTOR) Packet Forwarding Chip [J].
Nicholes, Steven C. ;
Masanovic, Milan L. ;
Jevremovic, Biljana ;
Lively, Erica ;
Coldren, Larry A. ;
Blumenthal, Daniel J. .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2010, 28 (04) :641-650
[16]   Increasing the modulation bandwidth of semiconductor- optical-amplifier-based switches by using optical filtering [J].
Nielsen, ML ;
Mork, J .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2004, 21 (09) :1606-1619
[17]   Optical Static RAM Cell [J].
Pleros, Nikos ;
Apostolopouls, Dimitrios ;
Petrantonakis, Dirnitrios ;
Stamatiadis, Christos ;
Avramopoulos, Hercules .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2009, 21 (1-4) :73-75
[18]  
Polka Lesley Anne, 2007, Intel Technology Journal, V11, P197, DOI 10.1535/itj.1103.03
[19]   High Switching-Speed Operation of Optical Memory Based on Polarization Bistable Vertical-Cavity Surface-Emitting Laser [J].
Sakaguchi, Jun ;
Katayama, Takeo ;
Kawaguchi, Hitoshi .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 2010, 46 (11) :1526-1534
[20]   40 Gb/s NRZ Wavelength Conversion Using a Differentially-Biased SOA-MZI: Theory and Experiment [J].
Spyropoulou, Maria ;
Pleros, Nikos ;
Vyrsokinos, Konstantinos ;
Apostolopoulos, Dimitrios ;
Bougioukos, Marios ;
Petrantonakis, Dimitrios ;
Miliou, Amalia ;
Avramopoulos, Hercules .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2011, 29 (10) :1489-1499