| 摘要 |
7357 TITLE: PROCESS FOR TAPERING WAVEGUIDES A process for forming a channel waveguide in which the channel geometry and the channel index of refraction vary oppositely along the channel length to keep the modal characteristic of the channel uniform uses non-uniform heating of a channel waveguide to cause non-uniform diffusion of the channel dopant. In one embodiment, the channel is passed under a laser at a non uniform rate to expose the channel to different numbers of laser pulses.
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