Ultra-High NA Single Mode Fiber
OVERVIEW
For Fluoride and Tellurite Fiber Splicing with up to 0.35NA
Fluoride optical fibers for amplifiers and lasers at 1.3 and 1.5 μm are becoming important components for optical fiber communications systems. Efficient operation of fluoride fibers requires a very high numerical aperture (typically >0.3), which unfortunately leads to increased coupling losses (insertion loss) and low return loss when connected to standard silica fibers. This coupling loss decreases the overall gain and seriously degrades the noise figure. By coupling UHNA series fibers, which offersup to 0.35NA between the fluoride and standard silica fibers, these losses can be dramatically reduced.
Applications
- Fluoride and Other Non-Silica Fiber Splicing
- Planar Waveguide Coupling
- Fiber Tails for High NA Sources
| Item # | UHNA1 | UHNA3 | UHNA4 |
|---|---|---|---|
| Wavelength Range | 1100 - 1600 nm | 960 - 1600 nm | 1100 - 1600 nm |
| Mode Field Diamter | 4.0 µm @ 1310 nm | 3.3 µm @ 1310 nm | 3.3 µm @ 1310 nm |
| Cladding | 125 ± 1.5 µm | 125 ± 1.5 µm | 125 ± 1.5 µm |
| Coating | 250 ± 20 µm | 250 ± 20 µm | 250 ± 20 µm |
| 2nd Mode Cutoff Wavelength | 1000 ± 50 nm | 900 ± 50 nm | 1050 ± 50 nm |
| Core Composition | SiO2/GeO2 | SiO2/GeO2 | SiO2/GeO2 |
| Typical Attenuation @ 1550 nm | <20 dB/km | <20 dB/km | <20 dB/km |
| NA | 0.28 | 0.35 | 0.35 |
| Stripper Tool | T06S13 | T06S13 | T06S13 |
Part Number |
Description |
Price |
Availability |
|---|---|---|---|
UHNA1 |
Nufern Ultra-High NA Silica Fiber, 0.28 NA, 1100 - 1600 nm |
$21.40
Per Meter Volume Pricing Available |
Today |
UHNA3 |
Nufern Ultra-High NA Silica Fiber, 0.35 NA, 960 -1600 nm |
$21.40
Per Meter Volume Pricing Available |
Today |
UHNA4 |
Nufern Ultra-High NA Silica Fiber, 0.35 NA, 1100 - 1600 nm |
$21.40
Per Meter Volume Pricing Available |
Today |