Apparatus and derivative technique for testing devices

Details Apparatus and derivative technique for testing devices Apparatus and derivative technique for testing devices

1987-01-15

1989-01-03

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324158R, 324 73R, G01R 3126

Patent

active

047959762

ABSTRACT:
Devices having nonlinearities in their electrical/optical output characteristics are identified, and the location and magnitude of the nonlinearities are quantified, by a technique which includes generating an estimated first derivative of the device output response which would be obtained if the device had no nonlinearities, comparing the measured and estimated functions to generate a deviation function, and comparing the deviation function to a predetermined criterion in order to identify which devices have undesirable nonlinearities. The specific application of this technique to the identification and quantification of kinks and light jumps in semiconductor lasers is described.

REFERENCES:
patent: 4062632 (1977-12-01), Dixon
patent: 4106096 (1978-08-01), Paoli
patent: 4680810 (1987-07-01), Swartz
patent: 4689555 (1987-08-01), Brust et al.

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