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Quasi-monochromatic fiber depolarizer and its application to polarization-dependent loss measurement.

Authors
  • Dong, H
  • Zhou, J Q
  • Yan, M
  • Shum, P
  • Ma, L
  • Gong, Y D
  • Wu, C Q
Type
Published Article
Journal
Optics letters
Publication Date
Apr 01, 2006
Volume
31
Issue
7
Pages
876–878
Identifiers
PMID: 16599197
Source
Medline
License
Unknown

Abstract

We theoretically derive the relationship between the degrees of polarization (DOPs) of input and output for an optical component with polarization-dependent loss (PDL) and birefringence. Based on the theoretical result, we propose a novel depolarizer for quasi-monochromatic light that can depolarize a fully polarized light with a 50 MHz linewidth to less than 0.2% in the DOP The depolarized light is then used to measure PDL in a single-mode optical fiber link. To the best of our knowledge, our new PDL measurement method is significantly faster than all known methods. Experimental results show excellent agreement with other methods.

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