Single-mode polarization-maintaining fiber

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Intended for: fiber-optic sensors, compensation interferometers and fiber-optic lines, requiring the preservation of the polarization of optical radiation.

working wavelength 1550 nm
lowest h-parameter

Optical haracteristics

Attenuation (for 1550 nm wavelength)	Not more than 0.9 dB/km
Numerical Aperture	0.14±0.2
Cutoff Wavelength (λ_cc)	λ_cc ≤ 1450 nm
Birefringence	>5.5*10^-4
h-parameter, 1/m	<6*10^-6
Polarizing beat length, mm	<3
Mode Field Diameter (MFD) (for 1550 nm wavelength)	9.5 ± 0.5 µm

Dimensional characteristics

Glass Geometry:
Cladding Diameter	125.0 ± 0.1 µm
Core Diameter	8.3 µm
Core-clad Concentricity	≤ 0.8 µm
Coating Geometry:
Coating Diameter	250 ± 10 µm

Coating type: Dual layer acrylate

Operating Temperature Range: -60ºC to + 85ºC

Fiber is supplied in spools from 0.5 km.

All fibers are rewinded with tension ≥ 100 kpsi (0.69 GPa).*

*In case of higher tension proof tests can be done.

Optical fibers:

Single-mode bend resistant fiber