Abstract

This paper presents a novel architecture for DWDM bidirectional access networks providing symmetric dynamic capacity allocation for both downlink and uplink signals. A foldback arrayed waveguide grating incorporating an optical switch enables the experimental demonstration of flexible assignment of multiservice capacity. Different analog and digital services, such as CATV, 10 GHz-tone, 155Mb/s PRBS and UMTS signals have been transmitted in order to successfully test the system performance under different scenarios of total capacity distribution from the Central Station to different Base Stations with two reconfigurable extra channels for each down and upstream direction.

© 2007 Optical Society of America

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References

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  1. G. H. Smith, D. Novak and C. Lim, "A Millimeter-Wave Full-Duplex Fiber-Radio Star-Tree Architecture Incorporating WDM and SCM," IEEE Photon. Technol. Lett. 10, 1650-1652 (1998).
    [CrossRef]
  2. H. Ramanitra, P. Chanclou, Z. Belfqih, M. Moignard, H. Le Bras, and D. Schumacher, " Scalable and Multi-Service Passive Optical Access Infrastructure Using Variable Optical Splitters," in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, Technical Digest (CD) (Optical Society of America, 2006), paper OFE2. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2006-OFE2
  3. T. Koonen, "Fiber to the Home/Fiber to the Premises:What, Where, and When?," Proc. of the IEEE 94, 911-934 (2006).
    [CrossRef]
  4. T. Koonen, K. Steenbergen, F. Janssen and J. Wellen, "Flexibility Reconfigurable Fiber-Wireless Network using wavelength routing Techniques: The ACTS Project AC349 PRISMA," Photon. Netw. Commun. 3, 297-306 (2001).
    [CrossRef]
  5. B. Ortega, J. Mora, G. Puerto, and J. Capmany, " Flexible Capacity Assignment in a Multiwavelength Radio over Fiber Access Network," in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, OSA Technical Digest Series (CD) (Optical Society of America, 2007), paper JWA88. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2007-JWA88.

2006

T. Koonen, "Fiber to the Home/Fiber to the Premises:What, Where, and When?," Proc. of the IEEE 94, 911-934 (2006).
[CrossRef]

1998

G. H. Smith, D. Novak and C. Lim, "A Millimeter-Wave Full-Duplex Fiber-Radio Star-Tree Architecture Incorporating WDM and SCM," IEEE Photon. Technol. Lett. 10, 1650-1652 (1998).
[CrossRef]

Koonen, T.

T. Koonen, "Fiber to the Home/Fiber to the Premises:What, Where, and When?," Proc. of the IEEE 94, 911-934 (2006).
[CrossRef]

Lim, C.

G. H. Smith, D. Novak and C. Lim, "A Millimeter-Wave Full-Duplex Fiber-Radio Star-Tree Architecture Incorporating WDM and SCM," IEEE Photon. Technol. Lett. 10, 1650-1652 (1998).
[CrossRef]

Novak, D.

G. H. Smith, D. Novak and C. Lim, "A Millimeter-Wave Full-Duplex Fiber-Radio Star-Tree Architecture Incorporating WDM and SCM," IEEE Photon. Technol. Lett. 10, 1650-1652 (1998).
[CrossRef]

Smith, G. H.

G. H. Smith, D. Novak and C. Lim, "A Millimeter-Wave Full-Duplex Fiber-Radio Star-Tree Architecture Incorporating WDM and SCM," IEEE Photon. Technol. Lett. 10, 1650-1652 (1998).
[CrossRef]

IEEE Photon. Technol. Lett.

G. H. Smith, D. Novak and C. Lim, "A Millimeter-Wave Full-Duplex Fiber-Radio Star-Tree Architecture Incorporating WDM and SCM," IEEE Photon. Technol. Lett. 10, 1650-1652 (1998).
[CrossRef]

Proc. of the IEEE

T. Koonen, "Fiber to the Home/Fiber to the Premises:What, Where, and When?," Proc. of the IEEE 94, 911-934 (2006).
[CrossRef]

Other

T. Koonen, K. Steenbergen, F. Janssen and J. Wellen, "Flexibility Reconfigurable Fiber-Wireless Network using wavelength routing Techniques: The ACTS Project AC349 PRISMA," Photon. Netw. Commun. 3, 297-306 (2001).
[CrossRef]

B. Ortega, J. Mora, G. Puerto, and J. Capmany, " Flexible Capacity Assignment in a Multiwavelength Radio over Fiber Access Network," in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, OSA Technical Digest Series (CD) (Optical Society of America, 2007), paper JWA88. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2007-JWA88.

H. Ramanitra, P. Chanclou, Z. Belfqih, M. Moignard, H. Le Bras, and D. Schumacher, " Scalable and Multi-Service Passive Optical Access Infrastructure Using Variable Optical Splitters," in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, Technical Digest (CD) (Optical Society of America, 2006), paper OFE2. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2006-OFE2

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Figures (9)

Fig. 1.
Fig. 1.

Symmetric wavelength router for dynamic capacity allocation in downstream and upstream access links.

Fig. 2.
Fig. 2.

Wavelength plan for down and uplink.

Fig. 3.
Fig. 3.

Experimental setup.

Fig. 4.
Fig. 4.

Detail of the BSs.

Fig. 5.
Fig. 5.

Optical spectra in BS1, BS3 and BS4 for different switching configurations (left) to provide reconfigurable capacity assignment.

Fig. 6.
Fig. 6.

Own channels signal degradation: (a) EVM for QPSK downstream channels in BS 1, 3 and 4. (b) BER for upstream channels launched from BS1 and 3.

Fig. 7.
Fig. 7.

Signal degradation for the down and uplink own channels for different scenarios: (a) λ3 (b) λ21.

Fig. 8.
Fig. 8.

Impact of different system configurations on the signal degradations for the extra downstream channels: (a) λ5 (b) λ6.

Fig. 9.
Fig. 9.

Impact of different system configurations on the signal degradations for the extra upstream channels: (a) λ23 (b) λ24.

Equations (3)

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C AWG RN = [ M + N ] input x [ M + N ] output
P SWITCH = [ N ] IN x [ M + N 1 ] OUT
FSR = ( M + N ) · Δ λ AWG RN

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