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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 11 — May. 29, 2006
  • pp: 4636–4643

Sagnac interferometer based flat-top birefringent interleaver

Chao-Wei Lee, Ruibo Wang, Pochi Yeh, and Wood-Hi Cheng  »View Author Affiliations

Optics Express, Vol. 14, Issue 11, pp. 4636-4643 (2006)

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We propose and demonstrate a novel Sagnac interferometer based flat-top birefringent optical interleaver employing a ring-cavity as a phase-shift element. The Sagnac interferometer with birefringent crystals provides the optical path difference for interference between the two orthogonal polarization components and the ring-cavity provides the phase shifts needed to achieve a flat-top spectral passband at the output. Fresnel reflections at the prism-air interface of the ring cavity are employed to obtain the desired phase shifts so that highly accurate thin-film coatings are not needed. The Sagnac interferometer based interleaver in a 25-GHz channel spacing (0.2 nm) application exhibits a 0.5-dB passband larger than 0.145 nm, a 25-dB stop band greater than 0.145 nm, and a channel isolation higher than 36 dB over the entire C-band. The superior performance is accompanied with a group velocity dispersion and ripples that can be compensated by using dispersion compensators.

© 2006 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(230.4320) Optical devices : Nonlinear optical devices
(260.1440) Physical optics : Birefringence

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: March 16, 2006
Revised Manuscript: April 30, 2006
Manuscript Accepted: May 1, 2006
Published: May 29, 2006

Chao-Wei Lee, Ruibo Wang, Pochi Yeh, and Wood-Hi Cheng, "Sagnac interferometer based flat-top birefringent interleaver," Opt. Express 14, 4636-4643 (2006)

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  1. S. V. Kartalopoulos, Introduction to DWDM Technology: Data in a Rainbow, (IEEE Press, New York, 2000), Chap. 1.
  2. S. Cao, J. Chen, J. N. Damask, C. R. Doerr, L. Guiziou, G. Harvey, Y. Hibino, H. Li, S. Suzuki, K.-Y. Wu, and P. Xie, "Interleaver technology: comparisons and applications requirements," J. Lightwave Technol.,  22, 281-289 (2004). [CrossRef]
  3. C. Roeloffzen, R. M. Ridder, G. Sengo, K. Worhoff, and A. Driessen, "Passband flattening and rejection band broadening of a periodic Mach-Zehnder wavelength filter by adding a tuned ring resonator," presented at the ECOC’02, Copenhagen, Denmark, Sept. 8-12, 2002, Paper P1.20.
  4. B. B. Dingel and M. Izutsu, "Multifunction optical filter with a Michelson-Gires-Tournois interferometer for wavelength-division-multiplexed network system applications," Opt. Lett. 23, 1099-1101 (1998). [CrossRef]
  5. C. H. Hsieh, R. Wang, Z. Wen, I. McMichael, P. Yeh, C. W. Lee, and W. H. Cheng, "Flat top interleavers using two Gires-Tournois etalons as phase dispersive mirrors in a Michelson interferometer," IEEE Photon. Technol. Letts. 15, 242-244 (2003). [CrossRef]
  6. C. H. Hsieh, C. W. Lee, S. Y. Huang, R. Wang, P. Yeh and W. H. Cheng, "Flat-top and low-dispersion interleavers using Gires-Tournois etalons as phase dispersive mirrors in a Michelson interferometer," Opt. Commun. 237, 285-293 (2004). [CrossRef]
  7. B. B. Dingel and M. Izutsu, "Optical wave-front transformer using the multiple-reflection interference effect inside a resonator," Opt. Lett. 22, 1449-1451 (1997). [CrossRef]
  8. S. Cao, C. Lin, C. Yang, E. Ning, J. Zhao, and G. Barbarossa, "Birefringent Gires-Tournois interferometer (BGTI) for DWDM interleaving," presented at the OFC’02, Anaheim, CA, Mar. 17-22, 2002, Paper ThC3.
  9. C. W. Lee, R. Wang, P. Yeh, C. H. Hsieh and W. H. Cheng, "Birefringent interleaver with a ring cavity as a phase-dispersion element," Opt. Lett. 30, 1102-1104 (2005). [CrossRef] [PubMed]
  10. X. Ye, M. Zhang, P. Ye, "Flat-top interleavers with chromatic dispersion compensator based on phase dispersive free space Mach-Zehnder interferometer," Opt. Commun. 257, 255-260 (2006). [CrossRef]
  11. P. Yeh, Optical Waves in Layered Media, (New York, Wiley, 1988), Chap. 3.
  12. C. K. Madsen, G. Lenz, A. J. Bruce, M. A. Capuzzo, L. T. Gomez, T. N. Nielsen, and I. Brener, "Multistage dispersion compensator using ring resonators," Opt. Lett. 24, 1555-1557 (1999). [CrossRef]

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