Abstract

Channeled spectropolarimeters are optical instruments that measure the spectral dependence of the polarization of light without any mechanically moving parts. An important factor in achieving stable and accurate measurements is the calibration process, especially in dynamic environments where temperature fluctuations or other factors affect the retardance of the components in the polarimeter. In previous research, a self-calibration algorithm that accounts for these variations was developed, without any additional reference measurements. In this paper, we identify an ambiguity in the self-calibration phase, which limits the allowed temperature changes to surprisingly small ranges. We show how to adaptively estimate and correct for the phase ambiguity using a polynomial curve-fitting algorithm, extending the temperature range to virtually all practical scenarios. Lastly, we demonstrate the ability of the modified self-calibration algorithm to provide stable reconstruction of the Stokes vector for a temperature range ${\gt} 40^\circ {\rm C}$, using an experimental channeled spectropolarimeter.

© 2020 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Easily implemented approach for the calibration of alignment and retardation errors in a channeled spectropolarimeter

Xueping Ju, Bin Yang, Changxiang Yan, Junqiang Zhang, and Wenhe Xing
Appl. Opt. 57(29) 8600-8613 (2018)

Stabilization of a channeled spectropolarimeter by self-calibration

Atsushi Taniguchi, Kazuhiko Oka, Hiroshi Okabe, and Masayuki Hayakawa
Opt. Lett. 31(22) 3279-3281 (2006)

Alignment errors calibration for a channeled spectropolarimeter

Bin Yang, Xueping Ju, Changxiang Yan, and Junqiang Zhang
Opt. Express 24(25) 28923-28935 (2016)

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 (9)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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

Equations (37)

You do not have subscription access to this journal. Equations 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