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A compact in-fiber Mach-Zehnder interferometer is demonstrated by splicing a section of twin-core fiber (TCF) between two single mode fibers (SMFs). Redshift is observed with a sensitivity of about 0.037 nm/°C for increased temperature, whereas blueshift is observed with a sensitivity of about 0.866 pm/με for applied strain changes.
© 2009 OSA, IEEE Photonics Society, SPIE, COS, CIC
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