8-channel wavelength division multiplexer based on multimode interference couplers

An 8-channel wavelength division multiplexer with 2-nm channel spacing at 1546 nm is proposed. The device is based on the self-imaging effect in multimode waveguides, and design analysis is carried out in a material system with refractive index contrast equal to 1.96%. Simulated loss is less than 0....

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Published in:IEEE photonics technology letters 1995-09, Vol.7 (9), p.1034-1036
Main Authors: Lierstuen, L.O., Sudbo, A.
Format: Article
Language:English
Subjects:
Couplers
Interference
Optical waveguides
Phased arrays
Polarization
Refractive index
Waveguide components
Waveguide transitions
Wavelength division multiplexing
WDM networks
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description An 8-channel wavelength division multiplexer with 2-nm channel spacing at 1546 nm is proposed. The device is based on the self-imaging effect in multimode waveguides, and design analysis is carried out in a material system with refractive index contrast equal to 1.96%. Simulated loss is less than 0.75 dB for all channels, and the -1-dB and -3-dB full width are 0.75 nm and 1.3 nm, respectively. Crosstalk is below -13 dB in a 0.75-nm-wide window at the neighboring channels. Polarizing change corresponds to a wavelength shift of less than 0.1 nm.< >
doi_str_mv 10.1109/68.414693
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source IEEE Electronic Library (IEL) Journals
subjects Couplers
Interference
Optical waveguides
Phased arrays
Polarization
Refractive index
Waveguide components
Waveguide transitions
Wavelength division multiplexing
WDM networks
title 8-channel wavelength division multiplexer based on multimode interference couplers
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