Title:
STABILIZING DEVICE FOR PHOTO OUTPUT OF LASER DIODE
Document Type and Number:
Japanese Patent JPS6066886
Kind Code:
A
Abstract:
PURPOSE: To stabilize the photo output and simplify the construction of the titled device by providing a temperature compensation circuit by a thermistor.
CONSTITUTION: A laser diode 1 is connected to a bias circuit consisting of the thermistor 2, a resistor 3 and a DC power source 4. When the temperature increase, the threshold value increases, and the photo output decreases in the case of a constant current. In this case, the resistance value of the thermistor 2 reduces with an increase in the temperature, accordingly the current increases and then makes the photo output constant.
Inventors:
SEKINO TOSHIAKI
Application Number:
JP17544383A
Publication Date:
April 17, 1985
Filing Date:
September 22, 1983
Export Citation:
Assignee:
NIPPON ELECTRIC CO
International Classes:
H01S5/042; H01S5/068; (IPC1-7): H01S3/096
Attorney, Agent or Firm:
Uchihara Shin