Abstract
Using ion exchange in glass, Corning has developped the PhotocorTM range of passive multimode devices. This paper deals with the extension of the range to include wavelength division multiplexers (WDM) and star couplers. The wavelength division multiplexers operate at the standard wavelengths of 850 and 1300nm. Maximum specified insertion loss is 1,5dB with 1,2dB being a more typical figure. Recent devices measure under 1dB. Rejection of the undesired wavelength exceeds 35dB at 850nm. Star couplers have been developed with the same integrated optics on glass approach. For a 8X8 coupler, insertion loss, port to port, is in the range 9.0-11.5dB. Packaging for both devices is fully developed. Environmental and mechanical test results are reported.
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