Abstract

This paper describes a robust measurement technique for determining the effective length mismatch of the two arms of a Mach-Zehnder modulator (MZM), based on its broad-band filter characteristics. The proposed method involves measuring the Vpi (lambda), n(lambda), and transfer function of a modulator at various externally applied bias points. This mismatch measurement technique is applied to a packaged polymer rib waveguide MZM, and it is shown that it has an arm-length mismatch of 1.9 µm. Poling-induced writing is then proposed as a fabrication technique that can consistently produce polymer MZMs with arm-length-mismatch values less than 2 µm.

© 2005 IEEE

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  1. F. Coppinger, A. S. Bhushan and B. Jalali, "Photonic time stretch and its application to analog-to-digital conversion", IEEE Trans. Microwave Theory Tech., vol. 47, no. 7, pp. 1309-1314, Jul. 1999.
  2. D. H. Chang, H. Erlig, M. C. Oh, C. Zhang, W. H. Steier, L. R. Dalton and H. R. Fetterman, "Time stretching of 102-GHz millimeter waves using novel 1.55-µ m polymer electrooptic modulator", IEEE Photon. Technol. Lett., vol. 12, no. 5, pp. 537 -539, May 2002.
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  6. FilmTek 4000, Scientific Computing International, Carlsbad, CA.
  7. C. Zhang, L. R. Dalton, M. C. Oh, H. Zhang and W. H. Steier, "Low Vpi electrooptic modulators from CLD-1: Chromophore design and synthesis, material processing and characterization", Chem. Mater., vol. 13, pp. 3043 -3050, 2001.
  8. I. Y. Poberezhskiy and H. R. Fetterman, "Traveling-wave polymer devices as wavelength converters for wavelength-division multiplexing applications", Opt. Lett., vol. 27, no. 6, pp. 427-429, Mar. 2002.
  9. J. I. Thackara, G. F. Lipscomb, M. A. Stiller, A. J. Ticknor and R. Lytel, "Poled electro-optic waveguide formation in thin-film organic media", Appl. Phys. Lett., vol. 52, no. 13, pp. 1031-1033, 1988.
  10. S.-K. Kim, K. Geary, D. H. Chang, H. R. Fetterman, H. Zhang, C. Zhang, C. Wang and W. H. Steier, "TM-pass polymer modulators with poling-induced waveguides and self-aligned electrodes", Electron. Lett., vol. 39, no. 9, pp. 721-722.

Other (10)

F. Coppinger, A. S. Bhushan and B. Jalali, "Photonic time stretch and its application to analog-to-digital conversion", IEEE Trans. Microwave Theory Tech., vol. 47, no. 7, pp. 1309-1314, Jul. 1999.

D. H. Chang, H. Erlig, M. C. Oh, C. Zhang, W. H. Steier, L. R. Dalton and H. R. Fetterman, "Time stretching of 102-GHz millimeter waves using novel 1.55-µ m polymer electrooptic modulator", IEEE Photon. Technol. Lett., vol. 12, no. 5, pp. 537 -539, May 2002.

A. Chen, V. Chuyanov, F. I. Marti-Carrera, S. Garner, W. H. Steier, S. S. H. Mao, Y. Ra, L. R. Dalton and Y. Shi, "Trimming of polymer waveguide Y-junction by rapid photobleaching for tuning the power splitting ratio", IEEE Photon. Technol. Lett., vol. 9, no. 11, pp. 1499-1501, Nov. 1997.

T. Tamir, Guided-Wave Optoelectronics, Berlin: Germany: Springer-Verlag, 1988, pp. 191 -193.

M. C. Oh, H. Zhang, C. Zhang, H. Erlig, Y. Chang, B. Tsap, D. Chang, A. Szep, W. H. Steier, H. R. Fetterman and L. R. Dalton, "Recent advances in electrooptic polymer modulators incorporating highly nonlinear chromophore", IEEE J. Select. Topics Quantum Electron., vol. 7, no. 5, pp. 826-835, Sept.-Oct. 2001.

FilmTek 4000, Scientific Computing International, Carlsbad, CA.

C. Zhang, L. R. Dalton, M. C. Oh, H. Zhang and W. H. Steier, "Low Vpi electrooptic modulators from CLD-1: Chromophore design and synthesis, material processing and characterization", Chem. Mater., vol. 13, pp. 3043 -3050, 2001.

I. Y. Poberezhskiy and H. R. Fetterman, "Traveling-wave polymer devices as wavelength converters for wavelength-division multiplexing applications", Opt. Lett., vol. 27, no. 6, pp. 427-429, Mar. 2002.

J. I. Thackara, G. F. Lipscomb, M. A. Stiller, A. J. Ticknor and R. Lytel, "Poled electro-optic waveguide formation in thin-film organic media", Appl. Phys. Lett., vol. 52, no. 13, pp. 1031-1033, 1988.

S.-K. Kim, K. Geary, D. H. Chang, H. R. Fetterman, H. Zhang, C. Zhang, C. Wang and W. H. Steier, "TM-pass polymer modulators with poling-induced waveguides and self-aligned electrodes", Electron. Lett., vol. 39, no. 9, pp. 721-722.

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