Fibre-Optic Trainer for Numerical Aperature and Fibre Loss Manufacturer,Supplier and Exporter in India
Product Code : EL-EELE-11328
Quick Answer: This fibre-optic trainer measures numerical aperture and fibre loss, using analogue transmitters at 660 nm and 850 nm, a receiver, and one-metre and five-metre PMMA fibre patch cords.
Last updated: October 2026
Key Features
Analogue transmitters at 660 nm and 850 nm, chosen with an SPDT switch.
Potentiometers set the transmitter LED forward current and the receiver phototransistor current.
NA jig with a length scale, plus an NA measuring scale for width readings.
One-metre and five-metre PMMA fibre patch cords, an in-line SMA adaptor and a mandrel.
IC-regulated DC supply; runs on 230V mains, plus or minus 10%, 50Hz.
The NA jig and its scale are used to read how widely light spreads from the fibre end, which gives the numerical aperture. The one-metre and five-metre cords provide two lengths for loss comparisons, and either wavelength can be selected for each test.
Frequently Asked Questions
Which wavelengths can be used?
Two analogue transmitters work at 660 nm and 850 nm, and an SPDT switch selects between them.
What fibre is supplied?
PMMA fibre patch cords in one-metre and five-metre lengths, with an in-line SMA adaptor and a mandrel.
