Light transmitter and automatic power control circuit thereof

Details Light transmitter and automatic power control circuit thereof Light transmitter and automatic power control circuit thereof

2008-04-01

2010-10-12

Rodriguez, Armando (Department: 2828)

Coherent light generators

Particular component circuitry

For driving or controlling laser

C372S038010

Reexamination Certificate

active

07813392

ABSTRACT:
A light transmitter and an auto-control circuit thereof are provided. The circuit includes a driving module and a feedback module. The driving module is coupled to the feedback module and a load. The driving module provides a driving current for driving the load. The feedback module provides a bias signal to the driving module according to the change of the temperature, for adjusting the driving current and stabilizing an output power.

REFERENCES:
patent: 7248610 (2007-07-01), Li et al.
Article titled “A 3.8-Gb/s CMOS Laser Driver with Automatic Power Control Using Thermistors” authored by Li et al., 33rd European Sold-State Circuit Conference (ESSCIRC 2007), Munich Germany, Sep. 11-13, 2007.
Article titled “10Gb/s 0.13um CMOS laser driver with extinction ratio control using thermistors” authored by Li et al., 2007 IEEE international Symposium on Circuit and System (ISCAS 2007), New Orleans, May 27-30, 2007.

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