Device for switching from one light source to another
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United States of America Patent
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-
Jan 19, 1988
Issued Date -
N/A
app pub date -
Apr 11, 1986
filing date -
May 11, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical coupler is formed of at least one polarization maintaining single mode fiber, a polarizing beam splitter connected to the polarization maintaining single mode fiber, and a main optical fiber which is connected with the polarizing beam splitter at one end thereof. This optical coupler is useful as a changeover switch for a light source.
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