OSA's Digital Library

Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 30, Iss. 20 — Oct. 15, 2005
  • pp: 2739–2741

Integrated-optic variable delay line and its application to a low-coherence reflectometer

K. Takiguchi, M. Itoh, and H. Takahashi  »View Author Affiliations

Optics Letters, Vol. 30, Issue 20, pp. 2739-2741 (2005)

View Full Text Article

Acrobat PDF (274 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We propose a large-scale variable delay line based on planar light-wave circuit technology and its application as a reference arm in an optical low-coherence reflectometer. This variable delay line is composed of 16 asymmetrical delay arm pairs sandwiched between 2 optical switches, which select the path for a needed delay. This configuration enables us to eliminate the need for a moving part in the reflectometer. We can scan the reference arm over a length of 262.1 mm with a step of less than 1.0 µm in air and achieve reflectometer sensitivity of about −47 dB.

© 2005 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(130.3120) Integrated optics : Integrated optics devices
(130.6010) Integrated optics : Sensors
(230.7390) Optical devices : Waveguides, planar

ToC Category:
Integrated Optics

K. Takiguchi, M. Itoh, and H. Takahashi, "Integrated-optic variable delay line and its application to a low-coherence reflectometer," Opt. Lett. 30, 2739-2741 (2005)

Sort:  Author  |  Year  |  Journal  |  Reset


  1. T. Bosselmann and R. Ulrich, in OFS '84 - International Conference on Optical Fiber Sensors, Proceedings (VDE-VERLAG GmbH, 1984), p. 361.
  2. S. Mechels, K. Takada, and K. Okamoto, IEEE Photon. Technol. Lett. 11, 857 (1999).
  3. V. Morgner, W. Drexler, F. X. Kärtner, X. D. Li, C. Pitris, E. P. Ippen, and J. G. Fujimoto, Opt. Lett. 25, 111 (2000).
  4. G. J. Tearney, B. E. Bouma, and J. G. Fujimoto, Opt. Lett. 23, 1811 (1997).
  5. P. G. Sinha and T. Yoshino, J. Lightwave Technol. 16, 2010 (1998). [CrossRef]
  6. T. Miya, IEEE J. Sel. Top. Quantum Electron. 6, 38 (2000). [CrossRef]
  7. K. Takiguchi, T. Shibata, and M. Itoh, Electron. Lett. 38, 469 (2002). [CrossRef]
  8. K. Takiguchi, in Proc. SPIE 5623, 325 (2005).
  9. Y. Hida, Y. Hibino, A. Kaneko, M. Itoh, A. Sugita, A. Himeno, and Y. Ohmori, Electron. Lett. 36, 820 (2000). [CrossRef]
  10. N. Takato, K. Jinguji, M. Yasu, H. Toba, and M. Kawachi, J. Lightwave Technol. 6, 1003 (1988). [CrossRef]
  11. S. Kawakami, Appl. Opt. 22, 2426 (1983).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited