How to avoid two times 'both' in this sentence

Question

I'd like to write this sentence:

In both excitation and emission beam path a Mach-Zehnder interferometer is introduced, both of which exhibiting equal delays.

I don't like the style of the sentence, because I use two times 'both'. I am not even sure it is grammatically correct, as the subordinate clause refers to two interferometers, although I put the 'interferometer' in singular. I was playing around with some other structures, but I wasn't satisfied. Does anybody have any suggestions how to transform the sentence to proper English?

Thanks a lot!

J.R. Bye · Answer

There are many grammatically correct ways you can convey what you are trying to convey with this sentence. I don't understand what most of the stuff in the sentence is so if my suggestion needs some tweaking please do so. It is more about changing the structure.

Original

"In both excitation and emission beam path a Mach-Zehnder interferometer is introduced, both of which exhibiting equal delays."

Suggestions

What is tripping me up here is the tense. Everything is happening in the present tense which is valid but it causes the sentence to sound clunky and it makes the structure difficult to massage.

Here is one possibility:
"A Mach-Zehnder interferometer is introduced in the excitation and emission beam path resulting in equal delays."

or (In case the words 'resulting in' and 'exhibited' aren't synonymous enough in this context)

"A Mach-Zehnder interferometer is introduced in the excitation and emission beam path where each exhibits equal delays." -- This is not perfect but it simplifies the structure of the sentence.

Hopefully something here puts you on the road to a final answer.

How to avoid two times 'both' in this sentence

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