A Four-way beamsplitter implementation

[jeremy_rutman]

Hi, is there any clever way to implement a 4-way beamsplitter ? My current go-to is using three 'regular' (two-way) beam splitters .

 

[Hyperfine]

Hi, is there any clever way to implement a 4-way beamsplitter ? My current go-to is using three 'regular' (two-way) beam splitters .

Indeed there are. A Google search of "four way beam splitter" yielded:

Four-port integrated polarizing beam splitter

A novel compact 4-channel beam splitter based on a Kösters-type prism

Designing the Phase and Amplitude of a Scalar Optical Fields in Three Dimensions

Those are just the first three hits that might be relevant to you.

 

[jeremy_rutman]

Indeed there are. A Google search of "four way beam splitter" yielded:

Four-port integrated polarizing beam splitter

behind paywall and not relevant- this is a two-input two-output device

A novel compact 4-channel beam splitter based on a Kösters-type prism

This is a chromatic filter splitting into e.g. R,G,B which is not what I'm after, I need 4 full-color images.

Designing the Phase and Amplitude of a Scalar Optical Fields in Three Dimensions

Those are just the first three hits that might be relevant to you.

This is a theory paper , which posits use of arbitrary inhomogneous SLM's for its simulations - not something i nor anyone else is likely to be able to produce or buy. Furthermore the splitter here seems to be more or less analogous to use of three splitters .
Thanks for the googling but I can actually, and have actually, done that myself....

 

[Hyperfine]

Perhaps you should have specified your criteria beyond merely asking if there is

any clever way to implement a 4-way beamsplitter?

 

[jeremy_rutman]

I did - having mentioned that

My current go-to is using three 'regular' (two-way) beam splitters .

it should be rather clear that use of that method is not, in fact, what I'm looking for.