Chirp-free directly modulated light source with integrated wavelocker
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United States of America Patent
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Issued Date -
Oct 31, 2002
app pub date -
Jul 20, 2001
filing date -
Jan 19, 2001
priority date (Note) -
Abandoned
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Abstract
A light source is disclosed for use optical communications systems. In one aspect, a gain region defined by a first and second mirror is provided having a corresponding resonant mode, and an external cavity defined by a third mirror and the second mirror is also provided having a plurality of resonant modes. The second mirror is configured such that one of the external cavity resonant modes is selected. The single channel laser has wavelength precision sufficient to eliminate the need for an external wavelocker, and has an external cavity capable of being directly modulated in a chirp-free manner.
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