Laser diode arrays and systems including structures for permitting optical power measurement therefrom
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United States of America Patent
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Nov 6, 2001
Grant Date -
N/A
app pub date -
Aug 18, 1999
filing date -
Nov 25, 1998
priority date (Note) -
Expired
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Abstract
A laser diode system permitting indirect measurement of optical power includes a laser diode which emits usable light from a front facet and spontaneously emits stray light substantially proportional to the usable light from another facet; and a light pipe disposed proximate to the laser diode which collects and waveguides only the stray light to thereby generate a stray light beam providing an indication of optical power.
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