Optical: systems and elements – Optical amplifier – Particular active medium
Reexamination Certificate
2008-04-15
2008-04-15
Hughes, Deandra M (Department: 3663)
Optical: systems and elements
Optical amplifier
Particular active medium
Reexamination Certificate
active
07359113
ABSTRACT:
A semiconductor optical amplifier (SOA) with efficient current injection is described. Injection current density is controlled to be higher in some areas and lower in others to provide, e.g., improved saturation power and/or noise figure. Controlled injection current can be accomplished by varying the resistivity of the current injection electrode. This, in turn, can be accomplished by patterning openings in the dielectric layer above the current injection metallization in a manner which varies the series resistance along the length of the device.
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Saini, S. S., et al., A Semiconductor Optical Amplifier with High Saturation Power, Low Noise Figure and Low Polarization Dependent Gain Over the C-Band, 17thAnnual Meeting IEEE Lasers and Electro-Optics Society (LEOS 2004), vol. 1, Nov. 8-9, 2004, pp. 102-103.
Bowser Jerry L.
Dagenais Mario
Heim Peter J. S.
Luciani Vincent K.
Saini Simarjeet S.
Covega Corp.
Hughes Deandra M
Potomac Patent Group PLLC
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