Optical: systems and elements – Optical amplifier – Particular active medium
Reexamination Certificate
2006-09-26
2006-09-26
Hellner, Mark (Department: 3663)
Optical: systems and elements
Optical amplifier
Particular active medium
C359S108000, C372S038010
Reexamination Certificate
active
07113329
ABSTRACT:
This disclosure is concerned with digital optical circuits, including an optical astable multivibrator. In one example, an optical astable multivibrator is provided that includes a lasing semiconductor optical amplifier (LSOA), such as a VLSOA for example. The LSOA is optically coupled to a time delay component and includes a pump input, amplifier input, amplifier output, and a ballast laser output. The time delay component includes an input that is optically coupled with the ballast laser output of the LSOA. The time delay component further includes an output that is optically coupled with the amplifier input of the LSOA. The output of the LSOA is a clock signal having a periodic square waveform whose frequency is determined by the time delay component.
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DiJaili Sol P
Wachsman John M
Walker Jeffrey D
Finisar Corporation
Hellner Mark
Workman Nydegger
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