Abstract

We have developed a new 8-chip, 320 Gchip/s encoder/decoder with eight input/output ports, that can be used in 40-Gb/s PON networks. The device has been to multiplex four asynchronous 40Gb/s users, using DPSK modulation. The transmission over 50 km has been successfully demonstrated for the first time.

© 2011 OSA

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References

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  1. J. A. Salehi, “Emerging optical code-division multiple-access communications systems,” IEEE Netw. Mag. 3(2), 31–39 (1989).
    [CrossRef]
  2. J. A. Salehi, “Emerging OCDMA communication systems and data networks,” J. Opt. Netw. 6(9), 1138–1178 (2007).
    [CrossRef]
  3. P. R. Prucnal, Optical Code Division Multiple Access: Fundamentals and Applications (Taylor & Francis, 2006).
  4. S. Yoshima, N. Nakagawa, N. Suzuki, M. Noda, M. Nogami, J. Nakagawa, K. Kitayama, “Demonstration of burst transmission of multiple capacity 10G-PON over OCDMA uplink using hybrid SSFBG encoder/multi-port decoder and 10 Gbps burst-mode receiver,” pdp OFC 2009.
  5. S. Yoshima, Y. Tanaka, N. Kataoka, N. Wada, J. Nakagawa, and K. Kitayama, “Full-duplex 10G-TDM-OCDMA-PON system using only a pair of en/decoder,” ECOC 2010.
  6. X. Wang, N. Wada, G. Cincotti, T. Miyazaki, and K. Kitayama, “Demonstration of over 128-gb/s-capacity (12-User/spl times/10.71-gb/s/user) asynchronous OCDMA using FEC and AWG-based multiport optical encoder/decoders,” IEEE Photon. Technol. Lett. 18(15), 1603–1605 (2006).
    [CrossRef]
  7. N. Kataoka, N. Wada, X. Wang, G. Cincotti, A. Sakamoto, Y. Terada, T. Miyazaki, and K.- Kitayama, “Field trial of duplex, 10 Gbps x 8-user DPSK-OCDMA system using a single 16x16 multi-port encoder/decoder and 16-level phase-shifted SSFBG encoder/decoders,” J. Lightwave Technol. 27(3), 299–305 (2009).
    [CrossRef]
  8. X. Wang, N. Wada, T. Miyazaki, G. Cincotti, and K. Kitayama, “Field trial of 3-WDM×10-OCDMA×10.71-Gbps, asynchronous, WDM/DPSK-OCDMA using hybrid E/D without FEC and optical thresholding,” J. Lightwave Technol. 25(1), 207–215 (2007).
    [CrossRef]
  9. X. Wang, N. Wada, N. Kataoka, T. Miyazaki, G. Cincotti, K. Kitayama, “100km field trial of 1.24 Tbit/s, spectral efficient, asynchronous 5 WDMX25 DPSK-OCDMA using one set of 50X50 ports large scale en/decoder,” pdp OFC 2007.
  10. N. Kataoka, N. Wada, X. Wang, G. Cincotti, T. Miyazaki, and K. Kitayama, “Full-duplex demonstration of asynchronous, 10Gbps x 4-user DPSK-OCDMA system using hybrid multi-port and SSFBG en/decoder,” ECOC Brussels Belgium 2008.
  11. N. Kataoka, X. Wang, N. Wada, G. Cincotti, Y. Terada, and K. Kitayama, “8x8 Full-duplex demonstration of asynchronous, 10Gbps, DPSK-OCDMA system using apodized SSFBG and multi-port en/decoder,” ECOC Vienna, Austria 2009.
  12. E. Narimanov, “Information capacity of nonlinear fiber optical systems: fundamental limits and OCDMA performance,” in Optical Code Division Multiple Access: Fundamentals and Applications, P. R. Prucnal, ed. (Taylor & Francis, 2005).
  13. N. Kataoka, N. Wada, G. Cincotti, K. Kitayama, “2.56 Tbps (40-Gbps x 8-wavelength s 4-OC x 2-POL) asynchronous WDM-OCDMA-PON using a multi-port encoder/decoder,” pdp ECOC 2011.

2009

2007

2006

X. Wang, N. Wada, G. Cincotti, T. Miyazaki, and K. Kitayama, “Demonstration of over 128-gb/s-capacity (12-User/spl times/10.71-gb/s/user) asynchronous OCDMA using FEC and AWG-based multiport optical encoder/decoders,” IEEE Photon. Technol. Lett. 18(15), 1603–1605 (2006).
[CrossRef]

1989

J. A. Salehi, “Emerging optical code-division multiple-access communications systems,” IEEE Netw. Mag. 3(2), 31–39 (1989).
[CrossRef]

Cincotti, G.

Kataoka, N.

Kitayama, K.

X. Wang, N. Wada, T. Miyazaki, G. Cincotti, and K. Kitayama, “Field trial of 3-WDM×10-OCDMA×10.71-Gbps, asynchronous, WDM/DPSK-OCDMA using hybrid E/D without FEC and optical thresholding,” J. Lightwave Technol. 25(1), 207–215 (2007).
[CrossRef]

X. Wang, N. Wada, G. Cincotti, T. Miyazaki, and K. Kitayama, “Demonstration of over 128-gb/s-capacity (12-User/spl times/10.71-gb/s/user) asynchronous OCDMA using FEC and AWG-based multiport optical encoder/decoders,” IEEE Photon. Technol. Lett. 18(15), 1603–1605 (2006).
[CrossRef]

Kitayama, K.-

Miyazaki, T.

Sakamoto, A.

Salehi, J. A.

J. A. Salehi, “Emerging OCDMA communication systems and data networks,” J. Opt. Netw. 6(9), 1138–1178 (2007).
[CrossRef]

J. A. Salehi, “Emerging optical code-division multiple-access communications systems,” IEEE Netw. Mag. 3(2), 31–39 (1989).
[CrossRef]

Terada, Y.

Wada, N.

Wang, X.

IEEE Netw. Mag.

J. A. Salehi, “Emerging optical code-division multiple-access communications systems,” IEEE Netw. Mag. 3(2), 31–39 (1989).
[CrossRef]

IEEE Photon. Technol. Lett.

X. Wang, N. Wada, G. Cincotti, T. Miyazaki, and K. Kitayama, “Demonstration of over 128-gb/s-capacity (12-User/spl times/10.71-gb/s/user) asynchronous OCDMA using FEC and AWG-based multiport optical encoder/decoders,” IEEE Photon. Technol. Lett. 18(15), 1603–1605 (2006).
[CrossRef]

J. Lightwave Technol.

J. Opt. Netw.

Other

P. R. Prucnal, Optical Code Division Multiple Access: Fundamentals and Applications (Taylor & Francis, 2006).

S. Yoshima, N. Nakagawa, N. Suzuki, M. Noda, M. Nogami, J. Nakagawa, K. Kitayama, “Demonstration of burst transmission of multiple capacity 10G-PON over OCDMA uplink using hybrid SSFBG encoder/multi-port decoder and 10 Gbps burst-mode receiver,” pdp OFC 2009.

S. Yoshima, Y. Tanaka, N. Kataoka, N. Wada, J. Nakagawa, and K. Kitayama, “Full-duplex 10G-TDM-OCDMA-PON system using only a pair of en/decoder,” ECOC 2010.

X. Wang, N. Wada, N. Kataoka, T. Miyazaki, G. Cincotti, K. Kitayama, “100km field trial of 1.24 Tbit/s, spectral efficient, asynchronous 5 WDMX25 DPSK-OCDMA using one set of 50X50 ports large scale en/decoder,” pdp OFC 2007.

N. Kataoka, N. Wada, X. Wang, G. Cincotti, T. Miyazaki, and K. Kitayama, “Full-duplex demonstration of asynchronous, 10Gbps x 4-user DPSK-OCDMA system using hybrid multi-port and SSFBG en/decoder,” ECOC Brussels Belgium 2008.

N. Kataoka, X. Wang, N. Wada, G. Cincotti, Y. Terada, and K. Kitayama, “8x8 Full-duplex demonstration of asynchronous, 10Gbps, DPSK-OCDMA system using apodized SSFBG and multi-port en/decoder,” ECOC Vienna, Austria 2009.

E. Narimanov, “Information capacity of nonlinear fiber optical systems: fundamental limits and OCDMA performance,” in Optical Code Division Multiple Access: Fundamentals and Applications, P. R. Prucnal, ed. (Taylor & Francis, 2005).

N. Kataoka, N. Wada, G. Cincotti, K. Kitayama, “2.56 Tbps (40-Gbps x 8-wavelength s 4-OC x 2-POL) asynchronous WDM-OCDMA-PON using a multi-port encoder/decoder,” pdp ECOC 2011.

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Figures (6)

Fig. 1
Fig. 1

(a) OCDMA-based PON architecture. (b) System architecture with a multiport E/D.

Fig. 2
Fig. 2

(a) Time, wavelength and code dimensions that can be used simultaneously in an OCDMA-based PON.(b) Capacity of a CDMA system: red and blue lines correspond to user bit rates B = 10 Gb/s and B = 40 Gb/s, respectively; the squares represent the results from our experiments, and their references are indicated aside.

Fig. 3
Fig. 3

(a) PSK optical code generated by the multiport encoder/decoder. (b) Autocorrelation signal measured at the matched port.

Fig. 4
Fig. 4

(a) Photography of the 8X8 multiport encoder/decoder. (b) Spectra measured at the output ports.

Fig. 5
Fig. 5

Experimental setup and results.

Fig. 6
Fig. 6

Measured BERs: (a) B-to-B and (b) after 50 km transmission, for a single user and four users asynchronously transmitting

Equations (1)

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C=NBΛ[ 1 log 2 ( 1+ e SNR ) ].

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