Abstract

A novel optical switch based on cascading two terahertz optical asymmetric demultiplexers (TOAD) is presented. By utilizing the sharp edge of the asymmetric TOAD switching window profile, two TOAD switching windows are overlapped to produce a narrower aggregate switching window, not limited by the pulse propagation time in the SOA of the TOAD. Simulations of the cascaded TOAD switching window show relatively constant window amplitude for different window sizes. Experimental results on cascading two TOADs, each with a switching window of 8ps, but with the SOA on opposite sides of the fiber loop, show a minimum switching window of 2.7ps.

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References

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  1. M. W. Chbat, B. J. Hong, M. N. Islam, C E Soccolich, P. R. Prucnal "Ultrafast Soliton Trapping AND Gate," J. Lightwave Technol. 10, 2011-2016 (1992)
    [CrossRef]
  2. N. J. Doran and D Wood "Non-linear optical loop mirror," Opt. Lett. 14, 56-58 (1988)
    [CrossRef]
  3. J. P. Sokoloff, P. R. Prucnal, I. Glesk, and M. Kane "a Terahertz optical asymmetric de-multiplexer (TOAD)," IEEE Photon. Technol. Lett. 5, 787-790 (1993)
    [CrossRef]
  4. M. Eiselt "Optical loop mirror with semiconductor laser amplifier," Electron. Lett. 28, 1505-1507 (1992)
    [CrossRef]
  5. N. S. Patel, K. L. Hall, K. A. Rauschenbach "40-Gbits cascadable all-optical logic with an ultrafast nonlinear interferometer," Opt. Lett. 21, 1466-1468 (1996)
    [CrossRef] [PubMed]
  6. S. Nakamura, K. Tajima, and Y. Sugimoto "Experimental investigation on high-speed switching characterstics of a novel symmetric mach-Zehnder all-optical switch," Appl. Phys. Lett. 65, 283-285 (1994)
    [CrossRef]
  7. K. I. Kang, I. Glesk, T. G. Chang, P. R. Prucnal, R. K. Boncek "Demonstration of all-optical Mach-Zehnder demultiplexer," Electron. Lett. 31, 749-750 (1995)
    [CrossRef]
  8. D. Campi, C. Coriasso "Wavelength conversion technologies," Photonic Netw. Commun. 2, 85-95 (2000).
    [CrossRef]
  9. I. Glesk, and P. R. Prucnal, "250-Gbps Self-Clocked Optical TDM with a Polarization-Multiplexed clock," Fiber Integrated Opt. 14, 71-82 (1995)
    [CrossRef]
  10. K.-L. Deng, R. J. Runser, P. Toliver, C. Coldwell, D. Zhou, I. Glesk, and P. R. Prucnal, "Demonstration of a highly scalable 100-Gbs OTDM computer interconnect with rapid inter-channel switching capability," Electron. Lett. 34, 2418 (1999).
    [CrossRef]
  11. P. Toliver, I. Glesk, and P. R. Prucnal, "All-optical clock and data separation technique for asynchronous packet-switched OTDM networks," Opt. Commun. 173, 101-106 (2000)
    [CrossRef]
  12. P. Toliver, K.-L. Deng, I. Glesk, and P. R. Prucnal, "Simultaneous Optical Compression and Decompression of 100 Gb/s OTDM Packets Using a Single TOAD and a Bi-directional Optical Delay Line Lattice," IEEE Photon. Technol. Lett. 11, 1183 (1999)
    [CrossRef]
  13. K.-L. Deng, R. J. Runser, P. Toliver, I. Glesk, and P. R. Prucnal, "A highly scalable, rapidlyreconfigurable, multicasting-capable, 100-Gbit/s photonic switched interconnect based upon OTDM technology," J. Lightwave Technol. 18, 1892 (2000)
    [CrossRef]
  14. K.-L. Deng, R. J. Runser, I. Glesk, and P. R. Prucnal, "Demonstration of Multicasting in a 100-Gb/s OTDM Switched Interconnect," IEEE Photon. Technol. Lett. 12, 558-560 (2000).
    [CrossRef]
  15. K. L. Hall, B. S. Robinson "Bit error rate characterisation of 100-Gbps all-optical demultiplexers," CLEO (Optical Society of America, Washington, DC, 1999) CTuW1.
  16. P. Toliver, R. J Runser, I. Glesk, P.R. Prucnal "Comparision of three nonlinear interferometric optical switch geometries," Opt. Commun. 175, 365-373 (2000)
    [CrossRef]
  17. K. I. Kang, T. G. Chang, I. Glesk, P. R. Prucnal "Comparison of Sagnac and Mach-Zehnder ultrafast alloptical interferometric switches based on a semiconductor resonant optical nonlinearity," Appl. Opt. 35, 417-426 (1996)
    [CrossRef] [PubMed]
  18. R. J. Runser "Interferometric SOA-Based Optical Switches for all-optical processing in communication networks and sampling systems," Department of Electrical Engineering, Princeton University, June 2001, Chapter 2 p. 45-47
  19. Y. Ueno, S. Nakamura, K. Tajima "Penalty-free error-free all-optical data pulse regeneration at 84 Gb/s by using a symmetric-Mach-Zehnder-type semiconductor regenerator," IEEE Photon. Technol. Lett. 13, 469-471 (2001)
    [CrossRef]
  20. C. Joergensen, S. L. Danielsen, T. Durhuus, B. Mikkelsen, K. E Stubkjaer, N. Vodjdani, F. Ratovelomanana, A. Enard, G. Glastre, D. Rondi, R. Blondeau "Wavelength conversion by optimized monolithic integrated Mach-Zehnder interferometer," IEEE Photon. Technol. Lett. 8, 521-523 (1996)
    [CrossRef]

Other

M. W. Chbat, B. J. Hong, M. N. Islam, C E Soccolich, P. R. Prucnal "Ultrafast Soliton Trapping AND Gate," J. Lightwave Technol. 10, 2011-2016 (1992)
[CrossRef]

N. J. Doran and D Wood "Non-linear optical loop mirror," Opt. Lett. 14, 56-58 (1988)
[CrossRef]

J. P. Sokoloff, P. R. Prucnal, I. Glesk, and M. Kane "a Terahertz optical asymmetric de-multiplexer (TOAD)," IEEE Photon. Technol. Lett. 5, 787-790 (1993)
[CrossRef]

M. Eiselt "Optical loop mirror with semiconductor laser amplifier," Electron. Lett. 28, 1505-1507 (1992)
[CrossRef]

N. S. Patel, K. L. Hall, K. A. Rauschenbach "40-Gbits cascadable all-optical logic with an ultrafast nonlinear interferometer," Opt. Lett. 21, 1466-1468 (1996)
[CrossRef] [PubMed]

S. Nakamura, K. Tajima, and Y. Sugimoto "Experimental investigation on high-speed switching characterstics of a novel symmetric mach-Zehnder all-optical switch," Appl. Phys. Lett. 65, 283-285 (1994)
[CrossRef]

K. I. Kang, I. Glesk, T. G. Chang, P. R. Prucnal, R. K. Boncek "Demonstration of all-optical Mach-Zehnder demultiplexer," Electron. Lett. 31, 749-750 (1995)
[CrossRef]

D. Campi, C. Coriasso "Wavelength conversion technologies," Photonic Netw. Commun. 2, 85-95 (2000).
[CrossRef]

I. Glesk, and P. R. Prucnal, "250-Gbps Self-Clocked Optical TDM with a Polarization-Multiplexed clock," Fiber Integrated Opt. 14, 71-82 (1995)
[CrossRef]

K.-L. Deng, R. J. Runser, P. Toliver, C. Coldwell, D. Zhou, I. Glesk, and P. R. Prucnal, "Demonstration of a highly scalable 100-Gbs OTDM computer interconnect with rapid inter-channel switching capability," Electron. Lett. 34, 2418 (1999).
[CrossRef]

P. Toliver, I. Glesk, and P. R. Prucnal, "All-optical clock and data separation technique for asynchronous packet-switched OTDM networks," Opt. Commun. 173, 101-106 (2000)
[CrossRef]

P. Toliver, K.-L. Deng, I. Glesk, and P. R. Prucnal, "Simultaneous Optical Compression and Decompression of 100 Gb/s OTDM Packets Using a Single TOAD and a Bi-directional Optical Delay Line Lattice," IEEE Photon. Technol. Lett. 11, 1183 (1999)
[CrossRef]

K.-L. Deng, R. J. Runser, P. Toliver, I. Glesk, and P. R. Prucnal, "A highly scalable, rapidlyreconfigurable, multicasting-capable, 100-Gbit/s photonic switched interconnect based upon OTDM technology," J. Lightwave Technol. 18, 1892 (2000)
[CrossRef]

K.-L. Deng, R. J. Runser, I. Glesk, and P. R. Prucnal, "Demonstration of Multicasting in a 100-Gb/s OTDM Switched Interconnect," IEEE Photon. Technol. Lett. 12, 558-560 (2000).
[CrossRef]

K. L. Hall, B. S. Robinson "Bit error rate characterisation of 100-Gbps all-optical demultiplexers," CLEO (Optical Society of America, Washington, DC, 1999) CTuW1.

P. Toliver, R. J Runser, I. Glesk, P.R. Prucnal "Comparision of three nonlinear interferometric optical switch geometries," Opt. Commun. 175, 365-373 (2000)
[CrossRef]

K. I. Kang, T. G. Chang, I. Glesk, P. R. Prucnal "Comparison of Sagnac and Mach-Zehnder ultrafast alloptical interferometric switches based on a semiconductor resonant optical nonlinearity," Appl. Opt. 35, 417-426 (1996)
[CrossRef] [PubMed]

R. J. Runser "Interferometric SOA-Based Optical Switches for all-optical processing in communication networks and sampling systems," Department of Electrical Engineering, Princeton University, June 2001, Chapter 2 p. 45-47

Y. Ueno, S. Nakamura, K. Tajima "Penalty-free error-free all-optical data pulse regeneration at 84 Gb/s by using a symmetric-Mach-Zehnder-type semiconductor regenerator," IEEE Photon. Technol. Lett. 13, 469-471 (2001)
[CrossRef]

C. Joergensen, S. L. Danielsen, T. Durhuus, B. Mikkelsen, K. E Stubkjaer, N. Vodjdani, F. Ratovelomanana, A. Enard, G. Glastre, D. Rondi, R. Blondeau "Wavelength conversion by optimized monolithic integrated Mach-Zehnder interferometer," IEEE Photon. Technol. Lett. 8, 521-523 (1996)
[CrossRef]

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Figures (7)

Fig 1:
Fig 1:

The switching windows with the SOA on (a) same side as the control port (b) different side as the control port

Fig 2
Fig 2

The principle of the optical switch based on overlap of two switching windows

Fig 3:
Fig 3:

The simulated switching window of a TOAD for different SOA offsets

Fig 4:
Fig 4:

The simulated switching windows with different delay offsets δ between the two TOADs

Fig 5:
Fig 5:

The experimental setup to measure the switching window of the cascaded TOAD EDFL: Erbium Doped Fiber Laser, OTDL: Optical Tunable Delay Line, DDF: Dispersion Decreasing Fiber EDFA: Erbium Doped Fiber Amplifier, SOA: Semiconductor Optical Amplifier

Fig 6:
Fig 6:

Experimental data, showing the switching windows convolved with the data pulses, for different delay offsets δ, between the constituent switching windows

Fig 7:
Fig 7:

The full width half maxima of the experimental, theoretical and de-convoluted experimental switching windows with different delay offsets, δ

Equations (2)

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SW ( t ) = { G 1 ( t ) + G 2 ( t ) 2 G 1 ( t ) G 2 ( t ) cos ( ϕ 1 ( t ) ϕ 2 ( t ) ) }
Cascade ( t , δ ) = S W A ( t ) × S W B ( t δ )

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