INTEGRATED TWO-CHANNEL SPECTRAL COMBINER AND WAVELENGTH LOCKER IN SILICON PHOTONICS
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United States of America Patent
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Issued Date -
May 5, 2016
app pub date -
Oct 31, 2014
filing date -
Oct 31, 2014
priority date (Note) -
Abandoned
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Abstract
A two-channel DWDM spectral combiner integrated with a wavelength locker is provided. Two optical signals at ITU grid channels are separately modulated by MZM modulators and combined into a silicon waveguide-based delayed-line interferometer built on silicon-on-insulator substrate to produce a combined signal having a free spectral range equal to twice of the spacing of the two ITU grid channels. Two dither signals can be added respectively to the two optical signals for identifying corresponding two channel wavelengths and locking each wavelength while outputting the combined signal.
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