According to your delay requirement, we advise and provide the most appropriate time delay coil. The optical delay depends on the fiber type and length. For example, a 20 km fiber coil will create a fixed delay up to 100 µs.
How to calculate a delay according to a fiber length? To calculate the required fiber length to obtain a specific time delay, use the following formula: L = c Δt / n where c is the speed of light in vacuum, Δt is the desired time delay, and n is the index of refraction of fused silica at the wavelength of interest (use n = 1.4677 at 1310 nm and n = 1.4682 at 1550 nm).
|Fiber core diameter||From 50 mm to 500 mm|
|Fiber external diameter||From 80 µm to 600 µm|
|Fiber length||Up to 50 km|
|Fiber width||From 5 mm to 500 mm|
|Fiber tension||From 20 g to 2 kg|
|Coating material||Polymer, polyimide, others|
|Spool stand||Copper, aluminium, plastic, others|