PANDA PM Specialty Fibers are designed with the best polarization
maintaining properties, and are the industry standard in the
world today. The fibers offer low attenuation and excellent birefringence for
high performance applications.
Available in a wide range of standard operating wavelengths up to
1550 nm, and with a variety of coating designs,
PANDA PM Specialty Fibers are optimal for high performance
polarization retaining fiber applications.
This field-proven fiber supports high growth applications, and performs well over a wide temperature range.
PANDA and Bow-Tie Single Mode Polarization-Maintaining (PM) fiber.
These two fibers are named based on the stress rods used.
Stress rods run parallel to the fiber's core and apply stress that
creates birefringence in the fiber's core, allowing
polarization-maintaining operation. PANDA stress rods are
cylindrical, while bow-tie uses trapezoidal prism stress rods, as
shown in the images above.
For the average user, these two fiber types are interchangeable.
PANDA fibers have historically been used in telecom applications,
as it is easier to maintain uniformity in their cylindrical stress
rods over very long lengths when manufacturing.
We also offer specialized PM fibers. Our photosensitive fiber can
be exposed to UV light to create a Fiber Bragg Grating, our
dispersion-compensating fiber corrects for chromatic dispersion,
and our bend- and temperature-insensitive PM fiber is ideal for use
in fiber optic gyroscopes (FOG).
PANDA PM Fibers Features:
Extremely high birefringence
Excellent polarization maintaining properties
Low attenuation
Single-mode designs from 400 nm – 1550 nm
Dual-layer UV acrylate and 900 µm nylon
Silicone coatings available
Low sensitivity to bending-induced attenuation
Low splice loss
PANDA PM Fibers available:
- High Numerical Aperture
- Reduced claddings
- Low birefringence
- Erbium-doped
- Dispersion shifted
- Polyimide and flame retardant coatings are also available
Fibre Type | PM 980 | PM 1310 | PM 14xx | PM 1550 |
125-12/250_C | 125-13/250_C | 125-13/250_C | 125-13/250_C |
Part No. | PM1015-A+ | PM1016-C+ | PM1018-A+ | PM1017-C+ |
Optical Properties |
Operating Wavelength (nm) | 980 | 1310 | 1400 - 1490 | 1550 |
Cut-o Wavelength (nm) | 800 - 970 | 1100 - 1290 | 1200 - 1380 | 1290 - 1520 |
Mode Field Diameter (μm) | 6.5±1.0 | 9.0±1.0 | 9.8±1.0 | 10.5±1.0 |
Attenuation (dB/km) | ≤ 2.5 | ≤ 0.5 | ≤ 0.5 | ≤ 0.5 |
Beat Length (mm) | 3.0 - 5.0 | 3.0 - 6.0 | 4.0 - 7.5 | 4.5 - 8.0 |
Typical Cross Talk at 4m (dB) | ≤-30 | ≤-30 | ≤-30 | ≤-30 |
Cross Talk at 1000m (dB) | ≤-25 | ≤-25 | ≤-25 | ≤-25 |
Geometrical Properties |
Cladding Diameter (μm) | 124.5 ± 1.0 | 124.5 ± 1.0 | 124.5 ± 1.0 | 124.5 ± 1.0 |
Coating Diameter (μm) | 245.0 ± 7.0 | 245.0 ± 7.0 | 245.0 ± 7.0 | 245.0 ± 7.0 |
Cladding Non-Circularity (%) | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 |
Core Concentricity Error (μm) | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 |
Coating Type | Dual-layer, UV-acrylate | Dual-layer, UV-acrylate | Dual-layer, UV-acrylate | Dual-layer, UV-acrylate |
Mechanical Properties |
Operating Temperature (℃) | -45 to +85 | -45 to +85 | -45 to +85 | -45 to +85 |
Proof Test (100 kpsi) | 100 | 100 | 100 | 100 |
