Semiconductor photonic device
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United States of America Patent
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May 10, 2011
Grant Date -
Sep 24, 2009
app pub date -
Jun 1, 2009
filing date -
Nov 30, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A coating film is provided on an end surface of a semiconductor photonic element including an active layer through which light propagates. The coating film has a two-layer structure including a first layer film and a second layer film arranged in a stacked relation. The thicknesses of the first and second layer films are determined so that the value of the amplitude reflectivity of the coating film is equal to an imaginary number.
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