Abstract

Optical filters are crucial devices for wavelength channel selecting in wavelength-division-multiplexed fiber-optic communication networks. Measuring the inner physical parameters of optical filters is significant for analyzing emerging new and more complex structures. This paper proposed a general and easy-to-operate method to extract physical parameters for complex filter structures with optical low-coherence measurement. By treating optical filters with digital filter concepts and z-transform analysis, we can build the relation between interferogram peak values and transfer function coefficients with brief linear equations. These equations can be used to derive the exact expression of transfer functions, which can manipulate the physical parameters. For a given filter structure, according to relations between transfer functions and physical parameters, the physical parameters could be extracted. This is especially meaningful in the postfabrication process.

© 2011 IEEE

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2009 (1)

C. Canavesi, F. Morichetti, A. Canciamilla, F. Persia, A. Melloni, "Polarization- and phase-sensitive low-coherence interferometry setup for the characterization of integrated optical components," J. Lightw. Technol. 27, 3062-3074 (2009).

2006 (1)

2005 (2)

W. Chen, Z. Wang, W. Chen, Y.-J. Chen, "General ring-resonator analysis and characterization by characteristic matrix," J. Lightw. Technol. 23, 915-922 (2005).

M. Qiu, "Vertically coupled photonic crystal optical filters," Opt. Lett. 30, 1476-1478 (2005).

2004 (1)

Y. Gottesman, E. V. K. Rao, D. G. Rabus, "New methodology to evaluate the performance of ring resonators using optical low-coherence reflectometry," J. Lightw. Technol. 22, 1566-1572 (2004).

2003 (1)

W. Chen, Y.-J. Chen, M. Yan, B. McGinnis, Z. Wu, "Improved techniques for the measurement of phase error in waveguide based optical devices," J. Lightw. Technol. 21, 198-205 (2003).

2000 (1)

A. Yariv, "Universal relations for coupling of optical power between microresonators and dielectric waveguides," Electron. Lett. 36, 321-322 (2000).

1999 (1)

A. Iocco, H. G. Limberger, R. P. Salathe, L. A. Everall, K. E. Chisholm, J. A. R. Williams, I. Bennion, "Bragg grating fast tunable filter for wavelength division multiplexing," J. Lightw. Technol. 17, 1217-1221 (1999).

1996 (1)

K. Takada, H. Yamada, Y. Inoue, "Optical low coherence method for characterizing silica-based arrayed-waveguide grating multiplexers," J. Lightw. Technol. 14, 1677-1689 (1996).

1995 (1)

R. Orta, P. Savi, R. Tascone, D. Trinchero, "Synthesis of multiple-ring-resonator filters for optical systems," IEEE Photon. Technol. Lett. 7, 1447-1449 (1995).

Electron. Lett. (1)

A. Yariv, "Universal relations for coupling of optical power between microresonators and dielectric waveguides," Electron. Lett. 36, 321-322 (2000).

IEEE Photon. Technol. Lett. (1)

R. Orta, P. Savi, R. Tascone, D. Trinchero, "Synthesis of multiple-ring-resonator filters for optical systems," IEEE Photon. Technol. Lett. 7, 1447-1449 (1995).

J. Lightw. Technol. (6)

W. Chen, Y.-J. Chen, M. Yan, B. McGinnis, Z. Wu, "Improved techniques for the measurement of phase error in waveguide based optical devices," J. Lightw. Technol. 21, 198-205 (2003).

A. Iocco, H. G. Limberger, R. P. Salathe, L. A. Everall, K. E. Chisholm, J. A. R. Williams, I. Bennion, "Bragg grating fast tunable filter for wavelength division multiplexing," J. Lightw. Technol. 17, 1217-1221 (1999).

K. Takada, H. Yamada, Y. Inoue, "Optical low coherence method for characterizing silica-based arrayed-waveguide grating multiplexers," J. Lightw. Technol. 14, 1677-1689 (1996).

Y. Gottesman, E. V. K. Rao, D. G. Rabus, "New methodology to evaluate the performance of ring resonators using optical low-coherence reflectometry," J. Lightw. Technol. 22, 1566-1572 (2004).

W. Chen, Z. Wang, W. Chen, Y.-J. Chen, "General ring-resonator analysis and characterization by characteristic matrix," J. Lightw. Technol. 23, 915-922 (2005).

C. Canavesi, F. Morichetti, A. Canciamilla, F. Persia, A. Melloni, "Polarization- and phase-sensitive low-coherence interferometry setup for the characterization of integrated optical components," J. Lightw. Technol. 27, 3062-3074 (2009).

Opt. Lett. (2)

Other (4)

A. V. Oppenheim, A. S. Willsky, I. T. Young, Signals and Systems (Prentice-Hall, 1983).

P. Stoica, R. L. Moses, Spectral Analysis of Signals (Prentice-Hall, 2005).

A. Yariv, P. Yeh, Photonics: Optical Electronics in Modern Communications (Oxford Univ. Press, 2007).

C. Madsen, J. Zhao, Optical Filter Design and Analysis: A Signal Processing Approach (Wiley, 1999) pp. 387-393.

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