Optical: systems and elements – Optical amplifier – Particular active medium
Reexamination Certificate
2008-04-30
2010-12-28
Bolda, Eric (Department: 3663)
Optical: systems and elements
Optical amplifier
Particular active medium
C372S045010, C372S045011, C372S045012
Reexamination Certificate
active
07859745
ABSTRACT:
A polarization-independent SOA having an InP substrate used as a semiconductor substrate, and an active layer taking an MQW structure formed of a barrier layer made of GaInAs with tensile strain applied thereto and a well layer made of GaInNAs with no strain applied thereto alternately laminated in a plurality of layers, here, four layers of the well layer and five layers of the barrier layer are alternately laminated, is proposed.
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Morito Ken
Tanaka Shinsuke
Yamazaki Susumu
Bolda Eric
Fujitsu Limited
Westerman Hattori Daniels & Adrian LLP
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