AlF3 Bare Fiber
Aluminium fluoride (AlF3) bare fiber, which FiberLabs positions as having a higher laser damage threshold and better water resistance than ZBLAN. It is used for mid-IR beam delivery and spectroscopy.
Technical overview
Two multimode fibers are catalogued: AMF-200/240-N-0.22 with a 200 micron core and AMF-440/480-N-0.22 with a 440 micron core, both at 0.22 core NA and under 0.1 dB/m loss at 2900 nm. Two coreless fibers for endcapping, ACLF-125-N and ACLF-250-N, are held in stock with cladding NA of 0.35 +/- 0.02 at 1000 nm. FiberLabs quotes a 300 to 3500 nm transmission window and cites 2.94 micron Er:YAG medical and dental laser delivery as a main use.
Features
- Mid-IR Transmission up to 3.5 micron
- High Environmental Stability
Specifications
| Parameter | Value |
|---|---|
| Wavelength coverage (product header) | 300 to 3500 nm |
| Multimode product numbers | AMF-200/240-N-0.22; AMF-440/480-N-0.22 |
| Multimode core diameter | 200 +/- 10; 440 +/- 20 um |
| Multimode core NA (at 1000 nm) | 0.22 +/- 0.02 |
| Multimode loss | < 0.1 at 2900 nm dB/m |
| Multimode cladding diameter | 240 +/- 10; 480 +/- 10 um |
| Multimode coating diameter | 480 +/- 30; 600 +/- 30 um |
| Coreless product numbers (for endcapping, currently in stock) | ACLF-125-N; ACLF-250-N |
| Coreless 1st cladding diameter | 123 +/- 5; 250 +/- 13 um |
| Coreless cladding shape | Circular |
| Coreless 2nd cladding diameter | 210 +/- 10; 470 +/- 30 um |
| Coreless cladding NA (at 1000 nm) | 0.35 +/- 0.02 |
| Coreless coating diameter | 480 +/- 30 (ACLF-125-N); N/A (ACLF-250-N) um |
Applications
- Scientific Research
- Industrial Application
- Medical Application
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FiberLabs' current stock list of ZBLAN fluoride bare fibers, doped and undoped, updated against actual inventory. It covers geometries outside the standard mass-production lineup.
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