Unsheathed PMMA Fiber
Universal Fiber optics can supply high quality unsheathed single PMMA fiber on reels.
This product is lighting grade and gives good visible light transmission and flexibility.
Universal Fiber Optic Lighting is an approved Mitsubishi PMMA lighting fiber distributor.
Minimum order quantity for this product is one reel.
Unsheathed PMMA Specification
- Core Material: Polymethyl Methacrylate
- Cladding Material: Fluorinated PMMA
- Refractive Index: 1.49
- Refractive Index Profile: Step Index
- Numerical Aperture: 0.5
- Operation Temperature Range: -55° - +70°C in low humidity; <60°C at 95% RH (attenuation change is within 10% after 1000hours except for that due to absorbed water).
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Fiber Ordering Codes
| Part No. | Nominal Fiber Diameter | Outer Diameter Tolerance | Reel Length |
Approx. Weight* | Min. Bend Radius | Approx. Transmission Loss** |
| CK10U | 0.25mm (0.01") | ±0.023mm (0.001") | 12000m (39370') | 0.06g/m | 5mm (0.2") | 350dB/km |
| CK20U | 0.50mm (0.02") | ±0.030mm (0.001") | 6000m (19685') | 0.4g/m | 10mm (0.39") | 250dB/km |
| CK30U | 0.75mm (0.03") | ±0.045mm (0.002") | 2700m (8858') | 0.9g/m | 15mm (0.59") | 200dB/km |
| CK40U | 1.00mm (0.04") | ±0.060mm (0.002") | 1500m (4921') | 1.5g/m | 20mm (0.79") | 200dB/km |
| CK60U | 1.50mm (0.06") | ±0.090mm (0.004") | 700m (2296') | 3.26g/m | 30mm (1.18") | 200dB/km |
| CK80U | 2.00mm (0.08") | ±0.12mm (0.005") | 250m (820') | 4.06g/m | 40mm (1.57") | 200dB/km |
* - Excluding packaging
** - In ideal conditions, 650nm collimated light







