Optical waveguides – Optical fiber waveguide with cladding
Patent
1997-06-09
1998-09-01
Lee, John D.
Optical waveguides
Optical fiber waveguide with cladding
65398, 65427, 385124, 385142, G02B 616
Patent
active
058022350
ABSTRACT:
A dispersion compensating fiber is provided which is capable of reducing the birefringence of the core caused in spinning to suppress an increase in polarization mode dispersion due to the birefringence of the core even though the surface of the core rod is ground to shape the profile of the core during manufacturing. A silica glass cladding 2 doped with fluorine is disposed to surround a silica glass core 1 doped with germanium. The variation in circumferential concentration of germanium at the periphery of the core 1 is set at 0.05% or smaller in relative refractive index difference value.
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"Optimum Dispersion Compensating Fiber: Birefringence and PMD Simulation and Fiber Process Improvement".
Chesnoy, Nouchi, Boniort, Brehm, Le Sergent, and Sansonetti. 343-346.
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