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LIV Curve on a 4N35 Optocoupler

Models 2601, 2602, 2611, 2612, 2635, 2636
Models 2601A, 2602A, 2611A, 2612A, 2635A, 2636A
Models 2601B, 2602B, 2604B, 2611B, 2612B, 2614B, 2634B, 2635B, 2636B
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Andrea C
Keithley Applications
Keithley Applications
Posts: 1576
Joined: October 15th, 2010, 10:35 am
Country: United States

LIV Curve on a 4N35 Optocoupler

Post by Andrea C » May 9th, 2021, 9:32 am

As a sample exercise, this is a TSP script for using two SMU within a 2600A or 2600B for an LIV curve.

SMUA = applies voltages to the LED or Laser
SMUB = applies voltage bias to PD and measures current vs. time
LIV on opto coupler
LIV_on_4N35.PNG (12.26 KiB) Viewed 571 times
Using ASYNC trigger model, you can measure at up to 20K Samples/sec.

Here is some sample data at 10KHz measure rate on the 4N35:
sample outcome
2636B_LIV_samples_vs_time.PNG (85.74 KiB) Viewed 571 times
Here is the TSP script and pseudo code to make use of the script. Run it from Test Script Builder.
TSP Script File
(6.39 KiB) Downloaded 29 times

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