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3-2
Basic Operation
Operation overview
Laser diode source and measure capabilities
The Model 2520 has the following laser diode current source and voltage measurement
capabilities:
•
NOTE
•
WARNING
Laser diode source and measure ranges
Table 3-1
values while
ages. See
Table 3-1
Laser diode current source ranges
Current
range
500mA
5A
* Pulse mode only, Maximum DC current is 1A.
Source Current — The Model 2520 can source DC current to the laser diode from
8µA to 1A (DC or pulse mode), 5.0A (pulse mode only). In the pulse mode, pulse
on time (pulse width) is adjustable from 500ns to 5ms in 100ns increments, and
pulse off time (pulse delay) is adjustable from 20µs to 500ms in 10µs increments.
Pulse width and delay settings are affected by maximum duty cycle. See
Section
5.
Measure Voltage — The Model 2520 can measure laser diode DC voltage from
0.33mV to 10.5V on two ranges: 5V and 10V.
It is the responsibility of the customer to operate instruments in a safe
manner. Follow all applicable safety regulations for installing, config-
uring and using the Model 2520. The Model 2520, as installed, should
be approved by the appropriate safety personnel, such as the responsi-
ble Laser Safety Officer or equivalent.
Suggested starting points for workplace regulations and standards:
ANSIZ136.1, IEC 825, OSHA 29 CFR 1910.
In short, always be aware of workplace hazards, strive to minimize
them, and work safely.
summarizes laser diode current source ranges, resolutions, and maximum output
Table 3-2
lists voltage measurement ranges, resolutions, and maximum volt-
Section 6
for more details on ranging.
Maximum
Maximum
resolution
10µA
500mA
100µA
5.0A*
output
Model 2520 User's Manual
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