T-PM-1550-01 - PM Photonic Crystal Fiber, 1550 nm, Unit Pricing Per Meter
Product Spec Sheet
Features
- Polarization Extinction Ratio (PER) > 18 dB
- Temperature Sensitivity 30x Lower than that of Other Leading Stress-Birefringent Fibers
- Undoped Pure Silica Core and Cladding
- Near-Gaussian Mode Profile (Ellipticity ~1.5)
NKT Photonics offers Polarization-Maintaining (PM) photonic crystal fibers that incorporate a non-circular core in combination with the large refractive index step between air and glass; this creates strong form birefringence. The result can be a shorter beat length that reduces the bend-induced coupling between polarization states compared with conventional PM fibers, and a much reduced thermal sensitivity of birefringence. The temperature coefficient of birefringence of these fibers is up to 30 times less than that of other leading stress-birefringent fibers. These fibers are sold based on the overall optical specifications and not the physical structure.
| Parameter |
Value |
| Optical Properties at 1550 nm |
| Mode Field Diameter (1/e2) |
5.5/3.8 ± 0.8 µm |
| Attenuation |
≤3 dB/km |
| Polarization Extinction Ratio (PER) |
Typical >18 dB |
Chromatic Dispersion
|
55 ± 10 ps/nm/km |
| Mode Field Ellipticity |
~1.5 |
| Birefringence |
≥4 x 10-4
|
| Physical Properties |
| Core Diameter |
6.3/4.4 ± 0.5 μm |
| Outer Cladding Diameter (Outer Diameter) |
125 ± 5 μm |
| Coating Diameter |
240 ± 10 μm |
| Core and Cladding Material |
Pure Silica |
| Coating Material (Single Layer) |
Single Layer Acrylate |
| Coating Concentricity |
<10 μm |
| Proof Test Level |
0.5% |
| Core Index |
Proprietary |
| Cladding Index |
Proprietary |
