All-optical correlator based on 3x3 coupler with feedback for optical header processing

A novel correlator based on 3x3 coupler with dual loops which perform XOR operation and feedback with power compensating is proposed. The validity of device is demonstrated by the simulation with realistic parameters at 10Gb/s and 40Gb/s. For this kind of correlator, the amplified spontaneous emission (ASE) noise accumulation is the crucial limitation. The relationship between the output signal-to-noise ratio (SNR) and bits to be compared is analyzed theoretically. The ASE noise is retrained and the output SNR is enhanced by introducing the assistant light advisably. Therefore, this device can perform the comparison of arbitrary length data. If the dual loops length is minimized by integrate, the devise is applicable for the higher speed data.

[1]  D. Simeonidou,et al.  Novel optical packet header decoding via cross-correlation , 2001 .

[2]  Ming-Seng Kao,et al.  WDM coding for high-capacity lightwave systems , 1994 .

[3]  H. P. Lee,et al.  Dynamically reconfigurable all-optical correlators to support ultra-fast internet routing , 2002, Optical Fiber Communication Conference and Exhibit.

[4]  Kamal Alameh,et al.  Passive and active optical bit-pattern recognition structures for multiwavelength optical packet switching networks. , 2007, Optics express.

[5]  Alan E. Willner,et al.  All-optical address recognition for optically-assisted routing in next-generation optical networks , 2003, IEEE Commun. Mag..

[6]  W.A. Crossland,et al.  An opto-VLSI reconfigurable broad-band optical splitter , 2005, IEEE Photonics Technology Letters.

[7]  R. Thompson,et al.  An experimental photonic time-slot interchanger using optical fibers as reentrant delay-line memories , 1987 .

[8]  Javier Martí,et al.  All-optical correlation employing single logic XOR gate with feedback , 2006 .

[9]  Paul Gunning,et al.  Self-routing of 100 Gbit/s packets using 6 bit 'keyword' address recognition , 1995 .

[10]  Alan E. Willner,et al.  Optically assisted Internet routing using arrays of novel dynamically reconfigurable FBG-based correlators , 2003 .

[11]  Javier Martí,et al.  All-optical packet header processor based on cascaded SOA-MZIs , 2004 .

[12]  Min Yong Jeon,et al.  Fiber-optic matched filters with metal films deposited on fiber delay-line ends for optical packet address detection , 1996 .

[13]  A.E. Willner,et al.  Multiwavelength-channel header recognition for reconfigurable WDM networks using optical correlators based on sampled fiber Bragg gratings , 2003, IEEE Photonics Technology Letters.

[14]  F. Tong,et al.  An all-optical packet header recognition scheme for self-routing packet networks , 2002, Optical Fiber Communication Conference and Exhibit.

[15]  A.E. Willner,et al.  Reconfigurable optical packet header recognition and routing using time-to-wavelength mapping and tunable fiber Bragg gratings for correlation decoding , 2000, IEEE Photonics Technology Letters.

[16]  J. Herrera,et al.  All Optical N-Bit XOR Gate with Feedback for Optical Packet Header Processing , 2002, 2002 28TH European Conference on Optical Communication.

[17]  Ozdal Boyraz,et al.  Time stretch optical header recognition , 2003, The 16th Annual Meeting of the IEEE Lasers and Electro-Optics Society, 2003. LEOS 2003..

[18]  K.E. Alameh,et al.  Opto-VLSI-based correlator architecture for multiwavelength optical header recognition , 2006, Journal of Lightwave Technology.