Thermo-optic devices
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United States of America Patent
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Jul 4, 2000
Grant Date -
N/A
app pub date -
Jan 7, 1998
filing date -
Jan 9, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a digital thermo-optic switch and an optical ADM filter of the present invention, functional components such as a splitter and a grating structure part formed in the course of an optical circuit as a component are composed of silicone materials which are superior in heat resistance, reduced loss, and low birefringence, thereby achieving sufficiently practical thermal stability, low loss at 1.55 to 1.58 .mu.m band, wavelength selectivity, and cost reduction.
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