Single Mode Fibers
ZFG Polarization maintaining
2 weeks delivery time
Response within 48h
- ZFG (Zirconium ZrF4 Fluoride Glass) = fluorozirconate fibers
Exhibit a high transparency in UV, visible and mid-infrared from 0.3 up to 4.5µm (see graph below):
- ZFG: Typ < 20dB/km at 2.5 µm
- IFG: Typ < 20dB/km at 3.6 µm
- GeG: Typ < 150 dB/km at 2.78 μm < 400 dB/km at 2.94 μm
- ZFG: 0.32-4.3µm
- IFG: 0.335-5.3µm
- GeG: 2.78 and 2.94µm
In order to maintain linear polarization during proropation throught the fiber, LVF has developed special PM fibers. The linear polarization during propagation is obtained thanks to two air-gaps (see fiber section image).
LVF delivers a standard ZFG polarization maintaining fiber.
∅core (µm) | ∅cladding (µm) | Numerical aperture | Cut-off wavelength (µm) | Beat length @2.8 µm (mm) | Reference |
|---|---|---|---|---|---|
6.5 | 125 | 0.23 | 1.95 | ≈ 20 | ZFG PM [1.95] 6.5/125 |
This polarization maintaining fiber was developped for the GRAVITY project and is now integrated system including a delay line and a polarization rotator.
Click here and learn more about our involvement in astronomical projects.
Standard price available
in our catalog on-line
CUSTOMIZE
your protective tubing and connectors
Protective tubing
• Hytrel (diameter: 0.9 mm), Kevlar (diameter: 4mm), stainless steel jacket (diameter: 7 mm), peek jacket (diameter: 0.9 mm)
Connectors
• SMA 905, FC/PC, FC/APC, Diamond, custom
All our fibers are available as fiber patch cables or fiber bundles
You have requirements about high power laser delivery?
LVF proposes IR screened fibers and endcaps solutions.
ZFG (Zirconium ZrF4 Fluoride Glass) polarization-maintaining fibers are fluorozirconate fibers designed to maintain linear polarization during propagation. They exhibit high transparency from UV to mid-infrared, up to 4.5 µm.
Typical losses are less than 20 dB/km at 2.5 µm.
The linear polarization during propagation is achieved thanks to the two air-gaps in the fiber structure.
These fibers were developed for the GRAVITY project and are integrated into systems including a delay line and a polarization rotator. They are suitable for applications in instrumentation and astronomy.
