Optical waveguides – Polarization without modulation
Reexamination Certificate
2007-03-13
2007-03-13
Pak, Sung (Department: 2874)
Optical waveguides
Polarization without modulation
C385S031000, C398S152000
Reexamination Certificate
active
11087532
ABSTRACT:
A PMD emulator configured by connecting in this order: an input-side optical fiber71for receiving light to be measured; a first polarization rotating portion73including M DGD sections76(M is an integer equal to or more than 2) concatenated by (M−1) polarization rotators80, one DGD section being arranged at each end of said first polarization rotating portion; an arbitrary-arbitrary polarization controller75for changing any state of polarization into any other state of polarization, a second PMD rotating portion74configured in the same way as the first polarization rotating portion73an output-side optical fiber for outputting the light to be measured.
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Hauer et al. “Compact all-fiber PMD emulator using an integrated series thin-film micro-heaters”, Optical Fiber Communications Conference and Exhibit, 2002, OFC. 2002, Mar. 2002, pp. 374-375.
J.H. Lee and Y.C. Chung, Statistical PMD Emulator using Variable DGD Elements, Oprical Communication Conference and Exhibit, 2002, OFC 2002, Mar. 2002, pp. 375-376.
Ikeda Kazuhiro
Mimura Yu
Pak Sung
The Furukawa Electric Co. Ltd.
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