Optical transmitter circuit

Details Optical transmitter circuit Optical transmitter circuit

2011-03-01

2011-03-01

Vanderpuye, Ken N (Department: 2613)

Optical communications

Transmitter

Including compensation

C398S182000, C372S038020

Reexamination Certificate

active

07899335

ABSTRACT:
A light emitting element driving differential switch (2) includes first and second transistors (M1, M2). A third transistor (M3) is connected as an auxiliary switch in parallel to the first transistor (M1) whose drain is connected to a light emitting element (1). A third switch driving signal (IN3) is input to the third transistor (M3) to turn ON the third transistor (M3) at a slightly earlier point in time than when complementary switch driving signals (IN1, IN2) are input to the first and second transistors (M1, M2) to drive the first and second transistors (M1, M2). This improves the rising characteristics of the output from the light emitting element having a high power level.

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