Optical: systems and elements – Optical amplifier – Particular active medium
Reexamination Certificate
2008-01-15
2008-01-15
Hughes, Deandra M (Department: 3663)
Optical: systems and elements
Optical amplifier
Particular active medium
Reexamination Certificate
active
11412435
ABSTRACT:
Monitoring of the input power is performed on-chip and is used to monitor and maintain performance, detect failure and trigger network protection strategies. An optical power-monitoring technique uses a photodetector monolithically integrated with the semiconductor optical amplifier—Mach-Zehnder interferometer circuit to monitor the P2R device and keep the output stable while the input power varies.
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Lakshminarayana Ganesh
Mu Ruomei
Sarathy Jithamithra
Stefanov Boris
Wang Hongsheng
Alphion Corporation
Hughes Deandra M
Kaplan Gilman Gibson & Dernier LLP
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