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http://dx.doi.org/10.3807/COPP.2019.3.2.111

Characterization of a Tunable Flattened-Pass-band Fiber Comb Filter  

Lee, Yong Wook (School of Electrical Engineering, Pukyong National University)
Jung, Jaehoon (Department of Electronics and Electrical Engineering, Dankook University)
Publication Information
Current Optics and Photonics / v.3, no.2, 2019 , pp. 111-118 More about this Journal
Abstract
The optical characteristics of a tunable flattened-pass-band fiber comb filter, based on the polarization-diversified loop configuration, are investigated using the $Poincar{\acute{e}}$-sphere representation. In the design process, the spectral flatness is checked quantitatively, and the tunability of the pass band is demonstrated experimentally. Theoretical calculations show that the filter also exhibits desirable dispersion and polarization properties. The orientation angles of rotatable wave plates for the wavelength tunability of the filter are obtained. Furthermore, we elaborate on the multiple angle loci produced by degeneracies through the combination of optical elements within the loop of the filter.
Keywords
Tubable wavelength filter; Polarization insensitive;
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