Polarization Maintaining (PM) Fiber

Polarization Maintaining (PM) Fiber

Sunma’s PANDA-type polarization maintaining (PM) fiber design uses two stress applying parts to create high birefringence, resulting in fibers with excellent polarization maintaining properties. Sunma fibers have high birefringence and exceptionally tight dimensional specifications, critical for man

 Specifications:

SUNMA’s PANDA-type polarization maintaining (PM) fiber design uses two stress applying parts to create high birefringence, resulting in fibers with excellent polarization maintaining properties. SUNMA’s PM fibers have high birefringence and exceptionally tight dimensional specifications, critical for manufacturing high precision high-performance gyro-coils. The Panda-type configuration is preferred over bow-tie or elliptical clad designs because of its advantages in process scalability and product uniformity. These fibers are available for operation at 850, 1300 and 1550 nm wavelengths.

Operating wavelength
0.83 μm
1.55 μm
Mode Field Diameter 4.5 μm
6.5 μm
Cladding Diameter 80 μm
80-125 μm
Coating Diameter 160-175 μm
160-175 μm
Numerical Aperture 0.15 0.13
Polarization crosstalk
(h-Parameter)
<10-5 /m <10-5 /m
 Attenuation < 3 dB/km < 2 dB/km
Cutoff Wavelength 730nm-800nm 1300nm-1450nm
 Beat Length <3mm <3mm
Stress Type PANDA PANDA

Fiber depolarizer
Optical power loss, dB - <0.5
Residual light polarization, % - <0.1
Power splitting ratio, - 0.49/0.51
Insertion loss, dB - 0.1

 

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