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Laser Diode Burn-In and Reliability Testing

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Laser Diode Burn-In and Reliability Testing

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  • Author: Dr. Lawrence A. Johnson
Over 99% of all lasers manufactured in the world today are semiconductor laser diodes. Reliability is a concern in every laser diode application whether it is a simple $10 laser pointer or a space qualifi ed optical transmitter link. The commercial success of a laser supplier rests largely on his ability to develop a robust manufacturing process that consistently produces reliable devices combined with the quantitative assurances he can provide to his customers proving the reliability of his devices. Over the past two decades laser diode reliability testing techniques and equipment have evolved to support the diverse development of laser diodes. In comparison to other electronic devices, laser diode testing is complicated by the requirement to accurately measure both optical and electrical parameters and by the diverse package styles and power levels found in currently available laser diodes.

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