What is meant by 'numerical aperture?' The numerical aperture is the range of angles at which an optical fiber can transmit its beam. It's related to refraction and the beam spread angle.
Numerical Aperture (NA)=n×sin(µ) or n×sin(α)
The NA Conversion Fiber is only applicable to the free space optical input structure on the AQ6360 and AQ6370 series optical spectrum analyzer.
By connecting a GI 50 or GI 62.5 optical fiber with a relatively large NA to the NA Conversion Fiber, the NA Conversion Fiber reduces the loss that occurs at the input and improves the measurement dynamic range during passive device measurements and the stability of optical level measurements during active device measurements.
Connect this product to the optical input of the applicable optical spectrum analyzer.
|Applicable Fiber||MM (GI 50/125)||MM (GI 50/125, 62.5/125)|
|NA Conversion Ratio||Approx. 1/3|
|Applicable OSA Models||All versions of AQ6360, AQ6370, AQ6373, AQ6374, AQ6375, and AQ6376 (only up to 1700 nm)|