Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2008-05-30
2011-11-08
Choi, William (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S276000, C359S333000
Reexamination Certificate
active
08054524
ABSTRACT:
A high-speed optical amplifier is considered to be an important optical device because of an increasing demand of routing, which is accompanied by an increase in complexity of networks. It is difficult to satisfy a response performance by related-art techniques, and there has been a problem in achieving a high-speed response performance of 10 microseconds or less.An optical amplifier according to the present invention includes: an input monitor means500; an optical amplification means310including an optical amplification medium300, and a control means400for performing feed-forward control. When the optical amplification means is controlled by the feed-forward control in response to a signal of the input monitor means500, an overshoot signal is applied as a control signal so that a slow response performance specific to the optical amplification medium has been improved, and thereby high-speed response performance has been achieved.
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Horiuchi Yoshiaki
Nagaeda Hiroshi
Oikawa Yoichi
Shiga Noriyasu
Choi William
Osha • Liang LLP
Trimatiz Ltd.
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