Active vertical-coupler-based optical crosspoint switch matrix for optical packet-switching applications

Packet-switching characteristics are optimized across an integrated 4 /spl times/ 4 optical crosspoint switch matrix consisting of active vertical-coupler-based switch cells. Optical gain difference between the shortest and the longest paths less than 3 dB is demonstrated. Bit error rate (BER) and power penalty measurements during packet routing have also been carried out over the entire 4 /spl times/ 4 matrix. At a 10-Gb/s packet data rate, a less than 1-dB power penalty is observed across the switch matrix, and the possibility for error-free packet routing is demonstrated with no BER floor observed.

[1]  Zhong Pan,et al.  Rapidly switching all-optical packet routing system with optical-label swapping incorporating tunable wavelength conversion and a uniform-loss cyclic frequency AWGR , 2002, IEEE Photonics Technology Letters.

[2]  Sadao Adachi,et al.  Physical Properties of III-V Semiconductor Compounds: InP, InAs, GaAs, GaP, InGaAs and InGaAsP , 1992 .

[3]  Roberto Sabella,et al.  Optical path technologies: a comparison among different cross-connect architectures , 1996 .

[4]  C. A. Burrus,et al.  High-speed digital Y-branch switch/modulator with integrated passive tapers for fibre pigtailing , 1999 .

[5]  M. Zirngibl,et al.  Fast packet routing in a 2.5 Tb/s optical switch fabric with 40 Gb/s duobinary signals at 0.8 b/s/Hz spectral efficiency , 2003, OFC 2003 Optical Fiber Communications Conference, 2003..

[6]  J. Taylor.  Theory of Dielectric Optical Waveguides. 2nd Edition , 1992 .

[7]  C. P. Larsen,et al.  Linear crosstalk in 4/spl times/4 semiconductor optical amplifier gate switch matrix , 1997 .

[8]  Masayuki Izutsu,et al.  All-Optical Switching in Novel Waveguide X-Junctions with Localized Nonlinearity (Joint Special Issue on Photonics in Switching : Systems and Devices) , 1999 .

[9]  Monique Renaud,et al.  Semiconductor optical space switches , 1996 .

[10]  G. Fish,et al.  Suppressed modal interference switches with integrated curved amplifiers for scaleable photonic crossconnects , 1998, IEEE Photonics Technology Letters.

[11]  L. Coldren,et al.  Diode Lasers and Photonic Integrated Circuits , 1995 .

[12]  A. C. Bryce,et al.  Monolithic fabrication of 2 /spl times/ 2 crosspoint switches in InGaAs-InAlGaAs multiple quantum wells using quantum-well intermixing , 2001, IEEE Photonics Technology Letters.

[13]  D. Marcuse.  Theory of dielectric optical waveguides , 1974 .

[14]  S. Dijaili,et al.  Birefringence compensation for polarization-independent directional coupler wavelength filters , 1995, IEEE Photonics Technology Letters.

[15]  N. Yoshimoto,et al.  Wide-band polarization-independent tensile-strained InGaAs MQW-SOA gate , 1998, IEEE Photonics Technology Letters.

[16]  C. Tanguy.  Refractive index of direct bandgap semiconductors near the absorption threshold: influence of excitonic effects , 1996 .

[17]  D. Sadot,et al.  Optical switching speed requirements for terabit/second packet over WDM networks , 2000, IEEE Photonics Technology Letters.

[18]  A. Suzuki,et al.  Influence of free carrier plasma effect on carrier-induced refractive index change for quantum-well lasers , 1993, IEEE Photonics Technology Letters.

[19]  Richard V. Penty,et al.  Demonstration of high-speed optical packet routing using vertical coupler crosspoint space switch array , 2000 .

[20]  John E. Bowers,et al.  Optical signal processing for optical packet switching networks , 2003, IEEE Commun. Mag..

[21]  Siyuan Yu,et al.  Ultra-low crosstalk, compact integrated optical crosspoint space switch arrays employing active InGaAsP-InP vertical waveguide couplers , 1999, Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Edition. CLEO '99. Conference on Lasers and Electro-Optics (IEEE Cat. No.99CH37013).

[22]  Saburo Adachi,et al.  Physical Properties of III-V Semiconductor Compounds , 1992 .

[23]  G. Papadimitriou,et al.  Optical switching: switch fabrics, techniques, and architectures , 2003 .

[24]  Alok K. Das,et al.  A digital optical switch (DOS) in polymer using truncated‐structural X‐branches (TSXB) , 2000 .

[25]  Richard A. Soref,et al.  Carrier-induced change in refractive index of InP, GaAs and InGaAsP , 1990 .

[26]  A. Stano,et al.  Loss analysis and interference effect in semiconductor integrated waveguide turning mirrors , 1996, IEEE Photonics Technology Letters.

[27]  P. Jeppesen,et al.  All-optical subcarrier labeling based on the carrier suppression of the payload , 2003, IEEE Photonics Technology Letters.

[28]  Richard V. Penty,et al.  High speed optical packet routing demonstration of a vertical coupler crosspoint space switch array , 2000, CLEO 2000.

[29]  Masahiro Yamaguchi,et al.  Hybrid Integrated 4 X 4 Optical Matrix Switch Module on Silica Based Planar Waveguide Platform , 1999 .

[30]  K. Ishida,et al.  Lossless and low-crosstalk characteristics in an InP-based 2*2 optical switch , 1993, IEEE Photonics Technology Letters.