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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 35 — Dec. 10, 2008
  • pp: 6625–6630

Modified Fabry–Perot interferometric method for waveguide loss measurement

Sareh Taebi, Mohammadreza Khorasaninejad, and Simarjeet Singh Saini  »View Author Affiliations

Applied Optics, Vol. 47, Issue 35, pp. 6625-6630 (2008)

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An extension to the Fabry–Perot interferometric method is demonstrated to calculate the optical loss and the reflectivity for optical waveguides simultaneously. The method uses an excitation of the waveguide with a broadband amplified spontaneous emission source (a superluminescent diode in our case) and curve fitting to account for the change of input power, thereby simplifying the measurement procedure. The use of a broadband source as opposed to tunable lasers allows for simultaneous measurements over multiple wavelengths and decreased sensitivity to reflections in the cavity. Further, waveguides of different lengths are measured to calculate the optical loss and the reflectivity simultaneously. It is shown that, if the value for reflectivity is assumed, there could be a large error in the measurement of loss especially for short waveguides. Optical loss for ridge waveguides is measured and compared by using a tunable laser as the input source. The method can be used for a generic case where it is suspected that the input power changes during the measurement.

© 2008 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(230.0230) Optical devices : Optical devices

ToC Category:
Integrated Optics

Original Manuscript: June 12, 2008
Manuscript Accepted: September 10, 2008
Published: December 5, 2008

Sareh Taebi, Mohammadreza Khorasaninejad, and Simarjeet Singh Saini, "Modified Fabry-Perot interferometric method for waveguide loss measurement," Appl. Opt. 47, 6625-6630 (2008)

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  1. Y. Okamura, S. Yoshinaka, and S. Yamamoto, “Measuring mode propagation losses of integrated optical waveguides: a simple method,” Appl. Opt. 22, 3892-3894 (1983). [CrossRef] [PubMed]
  2. H. P. Weber, F. A. Dunn, and W. N. Leibolt, “Loss measurements in thin-film optical waveguides,” Appl. Opt. 12, 755-757 (1973). [CrossRef] [PubMed]
  3. Y. H. Won, P. C. Jaussaud, and G. H. Chartier, “Three-prism loss measurements of optical waveguides,” Appl. Phys. Lett. 37, 269-271 (1980). [CrossRef]
  4. M. D. Himel and U. J. Gibson, “Measurement of planar waveguide losses using a coherent fiber bundle,” Appl. Opt. 25, 4413-4416 (1986). [CrossRef] [PubMed]
  5. G. Titterlbach, B. Richter, and W. Karthe, “Comparison of three transmission methods for integrated optical waveguide propagation loss measurement,” Pure Appl. Opt. 2, 683-700(1993). [CrossRef]
  6. I. P. Kaminow and L. W. Stulz, “Loss in cleaved Ti-diffused LiNbO3 waveguides,” Appl. Phys. Lett. 33, 62-64 (1978). [CrossRef]
  7. R. Regener and W. Sohler, “Loss in low-finesse Ti:LiNbO3 optical waveguide resonators,” Appl. Phys. B 36, 143-147(1985). [CrossRef]
  8. L. S. Yu, Q. Z. Liu, S. A. Pappert, P. K. L. Yu, and S. S. Lau, “Laser spectral linewidth dependence on waveguide loss measurements using the Fabry-Perot method,” Appl. Phys. Lett. 64, 536-538 (1994). [CrossRef]
  9. A. De Rossi, V. Ortiz, M. Calligaro, L. Lanco, S. Ducci, V. Berger, and I. Sagnes, “Measuring propagation loss in multimode semiconductor waveguide,” J. Appl. Phys. 97, 073105(2005). [CrossRef]
  10. K. H. Park, M. W. Kim, Y. T. Byun, D. Woo, S. H. Kim, S. S. Choi, Y. Chung, W. R. Cho, S. H. Park, and U. Kim, “Nondestructive propagation loss and facet reflectance measurements of GaAs/AlGaAs strip-loaded waveguides,” J. Appl. Phys. 78, 6318-6320 (1995). [CrossRef]
  11. A. Yariv and P. Yeh, Photonics: Optical Electronics in Modern Communication, 6th ed. (Oxford U. Press, 2006).

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