光敏性光纖（PHOSFBG for slanted FBG ）
FEATURES
♦ Specially designed of fiber core structure for use in slanted FBG filter
♦ Core and Inner-cladding both have photosensitivity
APPLICATIONS
♦ Gain-flattening filter for erbium doped fiber amplifier (GF-EDFA)
♦ Ultra-narrow FWHM bandwidth Slanted-FBG compared to standard single mode fiber
♦ Low back reflection Slanted-FBG
SPECIFICATIONS
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Product Name
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PHOSFBG
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Design Wavelength
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1550 nm
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Cut-off Wavelength
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≦ 1550 nm
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Attenuation @1550nm
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≦ 10 dB/km
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Numerical Aperture
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0.10 ± 0.02
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Mode Field Diameter (PetermannⅡ) @1550nm
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12.5 ± 1.0 μm
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Mode Field Diameter @ 1480 nm
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4.9 ± 0.3 μm
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Mode Field Diameter @ 980 nm
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3.4 ± 0.3 μm
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Core Diameter
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10.5 ± 1.0 μm
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Cladding Diameter
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125 ± 1 μm
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Coating Diameter
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245 ± 10 μm
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Core/ Cladding Concentricity
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≦ 1.0 μm
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Cladding/ Coating Concentricity
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＜ 12 μm
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Proof Test
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≧ 100 kpsi
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Length
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Customize
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