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- W2068643739 abstract "A ten-channel single-mode wavelength division demultiplexer operating at 740, 750, 760, 770, 780, 790,800,810,820 and 830 nm with diffraction angles varying from 16° to 52° and using a graded index (GRIN) polymer waveguide is reported for the first time. Diffraction efficiency up to 60% was measured. The wavelength spreading of the Ti:Al2O3 laser (~ 4 nm, 3 dB bandwidth) causes an average crosstalk figure of -21 dB. The beamwidth of the diffracted signal as a function of the input beam width, the grating interaction length, and the diffraction angle are considered. Occurrence of maximum values are discussed. A waveguide lens is needed to efficiently couple the diffracted light into an output fiber whenever the diffracted beam size is beyond the core diameter of the fiber involved." @default.
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- W2068643739 date "1991-12-01" @default.
- W2068643739 modified "2023-09-23" @default.
- W2068643739 title "Ten-channel single-mode wavelength division demultiplexer in near IR" @default.
- W2068643739 doi "https://doi.org/10.1117/12.50883" @default.
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