Polarization-independent electro-optically tunable narrow-band wavelength filter

We propose and demonstrate the first polarization-independent electro-optically tunable wavelengh filter with single-mode waveguides. The Ti:LiNbO3 filter utilizes narrow-band electro-optic TE ↔ TM conversion and employs TE/TM polarization splitters in the input and output waveguides. The filter ope...

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Bibliographic Details
Published in:	Applied physics letters Vol. 53; no. 1; pp. 13 - 15
Main Authors:	WARZANSKY, W, HEISMANN, F, ALFERNESS, R. C
Format:	Journal Article
Language:	English
Published:	Melville, NY American Institute of Physics 04-07-1988
Subjects:	Applied sciences Circuit properties Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Optical and optoelectronic circuits Alternating field Propagation velocity Electrooptical device Optical coupling TM mode TE mode Tuning Periodic structure Electrodes Diffraction grating Operation study Notch filter Optical filter Birefringence Band pass filter Lithium Niobates Interdigital configuration Mode conversion
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Summary:	We propose and demonstrate the first polarization-independent electro-optically tunable wavelengh filter with single-mode waveguides. The Ti:LiNbO3 filter utilizes narrow-band electro-optic TE ↔ TM conversion and employs TE/TM polarization splitters in the input and output waveguides. The filter operates at 1.52 μm with a bandwidth of only 12 Å and can be electro-optically tuned over at least 110 Å at a tuning rate of 0.55 Å/V.
ISSN:	0003-6951 1077-3118
DOI:	10.1063/1.100566