Talk:Mach-Zehnder interferometer
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Are there always two detectors in a Mach-Zender? I'm pretty you only really need one, perhaps depending on the application. -- DrBob 17:03, 7 Apr 2004 (UTC)
According to Optics, Hecht, 4th edition, you need only one. I currently don't have time to rewrite the article though. -- Gerritholl 08:58, 20 Sep 2004 (UTC)