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Integrated-optical Mach-Zehnder add-drop filter fabricated by a single UV-induced grating exposure
Abstract:
A four-port bandpass filter is demonstrated with good performance by use of UV-induced Bragg gratings in P-doped channel waveguides without UV trimming. The simple, single-step fabrication procedure is experimentally and theoretically analyzed, and tolerances are calculated for achieving practical wavelength-division-multiplexed communication system performance.
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