Patent ID: 6282216
Filing Date: 2001-08-28
Classification: H04B

Abstract:
A burst mode optical transmitter circuit comprising:a semiconductor laser for converting data input in a burst mode into an optical signal;a photodiode for monitoring the light output from said semiconductor laser;a current-voltage converting circuit for converting the current detected by said photodiode into a voltage;an APC amplifier for comparing the output signal from said current-voltage converting circuit with a reference value;a holding circuit for holding, as a current control signal, the output signal from said APC amplifier, and having a reset function to reset the held current control signal;a driving circuit for controlling, according to said current control signal held in said holding circuit and said data, the current to be supplied to said semiconductor laser; anda data interruption detecting circuit for detecting an interrupt period of said data input to said driving circuit to reset said holding circuit.