## page was renamed from Mach Zender
In the old days we used to employ a Mach Zender interferometer to impose phase modulations
at two different frequencies without creating the cross-term-sidebands between these two phase modulations.
This was because we had used the double demodulation technique to sense the interferometer length DOFs.


{{attachment:Mach-Zender.JPG}}

Here are the three Pockels cells in the parallel paths of the Mach Zender.

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=== Schematic ===
Attached below is the MZ schematic initial release. This doesn't reflect any real board though.

[[attachment:mz_061101.pdf]]