Variables

Subtypes

Change transmission / reflection with the angle or the beam position

VA : Variable Attenuator

Transmission can be varied continuously by changing the AOI (e.g. 0-45°), also available as Inversely Variable Attenuator (IVA)

Find an example here.


 

GOC : Gradient Output Coupler

Transmission can be varied continuously by shifting a
rectangular plate across the beam (right-middle-left
position)

Find an example here.


 

GP : Gradient Pass Coating

By shifting a rectangular plate across the beam, the incoming light passes through (right position) or will be blocked (left position), shown as Gradient Short Pass GSP, also available as Gradient Long Pass GLP

Find an example here.


 

GNF : Gradient Notch Filter

By shifting a rectangular plate across the beam, the band around λ1 passes through (right position) or will be blocked (left position) and reversely for λ2

Find an example here.


 

GIF : Gradient Interference Filter

By shifting a rectangular plate across the beam (left-right position), various wavelengths can be selected, e.g. for fast external change of multiline noble gas ion lasers

Find an example here.

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