Abstract

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 1.0μm in air and achieve reflectometer sensitivity of about 47dB.

© 2005 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Mach–Zehnder interferometer switch with a high extinction ratio over a wide wavelength range

Takayuki Mizuno, Hiroshi Takahashi, Tsutomu Kitoh, Manabu Oguma, Toshimi Kominato, and Tomohiro Shibata
Opt. Lett. 30(3) 251-253 (2005)

Rapid and scalable scans at 21  m/s in optical low-coherence reflectometry

J. Ballif, R. Gianotti, Ph. Chavanne, R. Wälti, and R. P. Salathé
Opt. Lett. 22(11) 757-759 (1997)

Polarization-maintaining fiber-based optical low-coherence reflectometer for characterization and ranging of birefringence

Digant P. Davé, Taner Akkin, and Thomas E. Milner
Opt. Lett. 28(19) 1775-1777 (2003)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription