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We propose an interleaver based on the Mach-Zehnder interferometer with a resonator incorporated in one arm. By using the method of signal flow graph, we get the simple closed-form expressions for transmission of this interleaver. The result indicates that the widths of 0.5 dB passband and 25 dB stopband of the interleaver are improved remarkably, which are much wider than that of the conventional Mach-Zehnder interferometer. The interleaver proposed has an ideal rectangular spectral response. Finally, we have analyzed the influence exerted by the parameters on its transimission characteristics and found that the transmission spectrum of this device depends highly on the intensity coupling coefficient of the coupler and fiber loop length.
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Tom
Strony
503--510
Opis fizyczny
Bibliogr. 16 poz.,
Bibliografia
- [1] HSIEH C.-H., WANG R., WEN Z.J., MCMICHAEL I., YEH P., LEE C.-W., CHENG W.-H., Flat-top interleavers using two Gires–Tournois etalons as phase-dispersive mirrors in a Michelson interferometer, IEEE Photonics Technology Letters 15(2), 2003, pp. 242–44.
- [2] MIZUNO T., KITOH I., SAIDA I., OGUMA M., SHIBATA T., HIBINO Y., Dispersionless interleave filter based on transversal form optical filter, Electronics Letters 38(19), 2002, pp. 1121–22.
- [3] DINGEL B.B., IZUTSU M., Multifunction optical filter with a Michelson–Gires–Tournois interferometer for wavelength-division-multiplexed network system applications, Optics Letters 23(14), 1998, pp. 1099–101.
- [4] OKAMOTO K., SUGITA A., Flat spectral response arrayed-waveguide grating multiplexer with parabolic waveguide horns, Electronics Letters 32(18), 1996, pp. 1661–2.
- [5] AMERSFOORT M.R., SOOLE J.B.D., LEBLANC H.P., ANDREADAKIS N.C., RAJHEL A. CANEAU C., Passband broadening of integrated arrayed waveguide filters using multimode interference couplers, Electronics Letters 32(5), 1996, pp. 449–51.
- [6] KOHTOKU M., OKU S., KADOTA Y., SHIBATA Y., YOSHIKUNI Y., 200-GHz FSR periodic multidemultiplexer with flattened transmission and rejection band by using a Mach–Zehnder interferometer with a ring resonator, IEEE Photonics Technology Letters 12(9), 2000, pp. 1174–6.
- [7] OGUMA M., JINGUJI K., KITOH T., SHIBATA T., HIMENO A., Flat-passband interleave filter with 200 GHz channel spacing based on planar lightwave circuit-type lattice structure, Electronics Letters 36(15), 2000, pp. 1299–300.
- [8] JINGUJI K., OGUMA M., Optical half-band filters, Journal of Lightwave Technology 18(2), 2000, pp. 252–9.
- [9] WANG Q.J., ZHANG Y., SOH Y.C., All-fiber 3×3 interleaver design with flat-top passband, IEEE Photonics Technology Letters 16(1), 2004, pp. 168–70.
- [10] DAMASK J.N., DOERR C.R., Polarization diversity for birefringent filters, US Patent 6252711, B1. 2001.
- [11] VINEGONI C., WEGMULLER M., GISIN N., Measurements of the nonlinear coefficient of standard, SMF, DSF, and DCF fibers using a self-aligned interferometer and a Faraday mirror, IEEE Photonics Technology Letters 13(12), 2001, pp. 1337–9.
- [12] SONG M., YIN S., RUFFIN P.B., Fiber Bragg grating strain sensor demodulation with quadrature sampling of a Mach–Zehnder interferometer, Applied Optics 39(7), 2000, pp. 1106–11.
- [13] HUAI-WEI LU, YU-E ZHANG, GUAN-WEI LUO, Study of all-fiber flat-top passband interleaver based on 2×2 and 3×3 fiber couplers, Optics Communications 276(1), 2007, pp. 116–21.
- [14] HUAI-WEI LU, BAO-GE ZHANG, MIN-ZHI LI, GUAN-WEI LUO, A novel all-fiber optical interleaver with flat-top passband, IEEE Photonics Technology Letters 18(13), 2006, pp. 1469–71.
- [15] YUPAPIN P.P., SAEUNG P., LI C., Characteristics of complementary ring-resonator add/drop filters modeling by using graphical approach, Optics Communications 272(1), 2007, pp. 81–6.
- [16] MASON S.J., Feedback theory – further properties of signal flow graphs, Proceedings of the IRE 44(7), 1956, pp. 920–6.
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Bibliografia
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bwmeta1.element.baztech-article-BPW7-0009-0044