Journal Published Online: 01 March 1991
Volume 19, Issue 2

Pulse Current Automatic Electro-Optical Characterization of the Laser Diode



An automated pulse current testing of the laser diode is presented. Built around an accurate and fast rise time pulse generator and a minicomputer, it has been used to test several laser diodes to extract characteristics such as threshold current and thermal resistance. The computer-controlled pulse generator offers multivariable control of output pulse. Control and data acquisition algorithms were developed in a low level language, MACRO11, to enhance speed and resource utilization, and in FORTRAN, which facilitated the man/machine interface or manware. Continuous wave and pulse test results are compared to illustrate the heating effects.

Author Information

Oyedokun, ZO
Ahmadu Bello University, Zaria, Nigeria
Pages: 6
Price: $25.00
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Stock #: JTE12550J
ISSN: 0090-3973
DOI: 10.1520/JTE12550J