Coherent light generators – Particular component circuitry – For driving or controlling laser
Reexamination Certificate
2005-08-16
2005-08-16
Wong, Don (Department: 2821)
Coherent light generators
Particular component circuitry
For driving or controlling laser
C372S075000
Reexamination Certificate
active
06931039
ABSTRACT:
Optical transmitter equipment and a semiconductor laser device are provided. In one example, optical transmitter equipment includes a semiconductor laser driven by a direct-modulated method. The optical transmitter equipment comprises at least a semiconductor laser, the semiconductor laser having an active layer for laser oscillation and a clad region for optical confinement; an emission device capable of supplying optical energy to the active layer in the semiconductor laser; and a drive circuit for the semiconductor laser. The emission device is configured to supply optical energy corresponding to a bias current in the semiconductor laser to the active layer in the semiconductor laser.
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Nakahara Kouji
Takeyari Ryoji
A. Marquez, Esq. Juan Carlos
Fisher Esq. Stanley P.
Hitachi , Ltd.
Reed Smith LLP
Vy Hung Tran
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