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3.Free-spectral range tunable Fabry-Perot filter with superimposed fiber Bragg gratings
Fabry–Perot Free-spectral range Superimposed fiber Bragg grating
2013/5/24
A novel free-spectral range (FSR) tunable Fabry–Perot filter (FPF) with two superimposed fiber Bragg gratings (SFBGs) is proposed and experimentally demonstrated. The SFBGs, initially uniform in perio...
Novel Optical 90o Hybrid with Low Wavelength Sensitive Power Balance and Phase Deviation over 94-nm-wide Spectral Range
Novel Optical Wavelength Sensitive Power Balance Phase Deviation Spectral Range
2015/7/14
We propose a novel optical 90o hybrid employing a paired-interference 2×4 MMI coupler where no waveguide intersection in coupling to photo detectors is required. The proposed device exhibited 90o hybr...