Abstract

We propose a new type of all-fiber device for inter-band router using a novel hybrid waveguide-MEMS technology. Both continuous and discrete band-routing functions are realized by precise twist control over the fused coupling region, which results in π phase shift between the output ports. Experimentally we demonstrate inter-band routing functions between O and C-band as well as between E and L-band with a low insertion loss, wide bandwidth of operation, high channel isolation and fast response.

© 2004 Optical Society of America

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References

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  1. R. Li, �??Service-integrated selective DWDM in metro area,�?? in Proceedings of World Computer Congress-International Conference on Communication Technology (WCC - ICCT 2000), (Beijing, China, 2000), 1184-1187.
  2. T. Pfeiffer, J. Kissing, J.-P. Elbers, B. Deppisch, M. Witte, H. Schmuck and E. Voges, �??Coarse WDM/CDM/TDM concept for optical packet transmission in metropolitan and access networks supporting 400 channels at 2.5 Gb/s peak rate,�?? J. Lightwave Technol. 18, 1928-1938 (2000).
    [CrossRef]
  3. IEEE standard 802.3 (2000 edition), 1039-1041.
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    [CrossRef]
  5. J. E. Fouquet, �??Compact optical cross-connect switch based on total internal reflection in a fluid-containing planar lightwave circuit,�?? in Proceedings of Optical Fiber Communication Conference and Exhibit (OFC2000), (Optical Society America, Washington, D.C., 2000), 204-206.
  6. M. B. J. Diemeer, W. J. De Vries and K.W. Benoist, �??Fused coupler switch using a thermo-optic cladding,�?? Electon. Lett. 24, 457 (1988).
    [CrossRef]
  7. T. A. Birks, �??Power equalization in 3x3 fibre couplers by twisting tuning,�?? Electron. Lett. 27, 1087 (1991).
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  8. W. Shin and K. Oh, �??Re-configurable 2x2 wavelength selective cross connect switch based on a fused optical fiber coupler,�?? in Proceedings of Optical Fiber Communication Conference and Exhibit (OFC2002), (Optical Society America, Washington, D.C., 2002), paper ThGG57.
  9. W. Shin and K. Oh, �??Re-configurable all fiber wavelength selective optical switch based on tunable fused fiber couplers,�?? in Proceedings of The 16th International Conference on Optical Fiber Sensors (OFS-16), (Noh-Drama Theater, Nara, Japan, 2003), paper ThP-14.
  10. W. Shin, Y. Jeong, K. Oh, �??Broadband high power fiber variable optical attenuator for gain control of raman amplifier,�?? in Proceedings of 28�??th European Conference on Optical Communication (ECOC2002), (September 8-12, Bella Center, Copenhagen, Denmark, 2002), paper P1.24.
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Appl. Opt. (1)

Electon. Lett. (1)

M. B. J. Diemeer, W. J. De Vries and K.W. Benoist, �??Fused coupler switch using a thermo-optic cladding,�?? Electon. Lett. 24, 457 (1988).
[CrossRef]

Electron. Lett. (2)

T. A. Birks, �??Power equalization in 3x3 fibre couplers by twisting tuning,�?? Electron. Lett. 27, 1087 (1991).
[CrossRef]

F. Gonthier, D. Ricard, S. Lacroix and J. Bures, �??Wavelength-insensitive couplers in form of all-fiber Mach-Zehnder interferometer,�?? Electron. Lett. 27, 1829 (1991).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

P. M. Hagelin, �??Scalable optical cross-connect switch using micromachined mirrors,�?? IEEE Photon. Technol. Lett. 12, 882-884 (2000).
[CrossRef]

J. Lightwave Technol. (1)

OFC 2000 (1)

J. E. Fouquet, �??Compact optical cross-connect switch based on total internal reflection in a fluid-containing planar lightwave circuit,�?? in Proceedings of Optical Fiber Communication Conference and Exhibit (OFC2000), (Optical Society America, Washington, D.C., 2000), 204-206.

OFC 2002 (1)

W. Shin and K. Oh, �??Re-configurable 2x2 wavelength selective cross connect switch based on a fused optical fiber coupler,�?? in Proceedings of Optical Fiber Communication Conference and Exhibit (OFC2002), (Optical Society America, Washington, D.C., 2002), paper ThGG57.

Proc. ECOC 2002 (1)

W. Shin, Y. Jeong, K. Oh, �??Broadband high power fiber variable optical attenuator for gain control of raman amplifier,�?? in Proceedings of 28�??th European Conference on Optical Communication (ECOC2002), (September 8-12, Bella Center, Copenhagen, Denmark, 2002), paper P1.24.

Proc. OFS-16 (1)

W. Shin and K. Oh, �??Re-configurable all fiber wavelength selective optical switch based on tunable fused fiber couplers,�?? in Proceedings of The 16th International Conference on Optical Fiber Sensors (OFS-16), (Noh-Drama Theater, Nara, Japan, 2003), paper ThP-14.

Proc. WCC-ICCT 2000 (1)

R. Li, �??Service-integrated selective DWDM in metro area,�?? in Proceedings of World Computer Congress-International Conference on Communication Technology (WCC - ICCT 2000), (Beijing, China, 2000), 1184-1187.

Other (1)

IEEE standard 802.3 (2000 edition), 1039-1041.

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Figures (7)

Fig. 1.
Fig. 1.

Principle of the proposed inter-band router based on a tunable 2×2 coupler.

Fig. 2.
Fig. 2.

(a) Refractive index change along the applied axial stress. (b) Coupling characteristic change due to the width variation of coupling region of coupler.

Fig. 3.
Fig. 3.

Transmission characteristic of O/C-band router : (a) Shift of transmission spectra under torsion stress, (b) Transmission spectra of output port before and after routing.

Fig. 4.
Fig. 4.

Variation of the center wavelength and the maximum channel isolation as a function of the rotation angle.

Fig. 5.
Fig. 5.

Transmission characteristic of O/C-band router : (a) Shift of transmission spectra under torsion stress, (b) Transmission spectra of output port before and after routing.

Fig. 6.
Fig. 6.

Variation of the center wavelength and the maximum channel isolation as a function of the rotation angle.

Fig. 7.
Fig. 7.

Band routing performance in 1550nm 10Gb signal:(a)Bit error rate measurement setup, (b)Eye diagram, (c)BER vs Reciever power.

Equations (2)

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C ( z ) = δ U 2 ( z ) K 0 ( W ) b V 3 K 1 2 ( W )
Δ n r = C b σ z = C b τ A ρ 0 r ρ 3 d ρ

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