Method and apparatus for aligning a waveguide with a radiation source
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United States of America Patent
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Aug 17, 2004
Grant Date -
Jul 31, 2003
app pub date -
Jan 16, 2003
filing date -
Jul 26, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for aligning an optical waveguide with a radiation source are provided. The waveguide has a longitudinal axis that defines a main optical propagation path. The optical waveguide is illuminated by the radiation source such that the waveguide generates light via photoluminescence, at least a portion of the light generated via photoluminescence being emitted from the waveguide along a direction generally transverse to the longitudinal axis. An output signal is generated at least in part on the basis of light emitted from the waveguide along a direction generally transverse to the longitudinal axis. The alignment of the radiation source and the waveguide is varied at least partly in dependence of the output signal.
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