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Interferometers. Optics 2005—04—13 D. Craig. Coherence. Fairly coherent. Less coherent. Mach-Zender. Splitter/combiner. Mirror. Detector. Mirror. Beam splitter. Source. (There are extraneous beams, ignore them). Sagnac. Mirror. Mirror. Mirror. Beam splitter. Source. Detector.
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Interferometers Optics 2005—04—13 D. Craig
Coherence Fairly coherent Less coherent
Mach-Zender Splitter/combiner Mirror Detector Mirror Beam splitter Source (There are extraneous beams, ignore them)
Sagnac Mirror Mirror Mirror Beam splitter Source Detector
Ring Sagnacs. 9.8.3 Optical Fiber splitter Rotation about centercauses fringes---OPD varies due to Doppler! Ring Laser Gyroscope Detector