Stanford Research Systems LDC500, Руководство по эксплуатации и обслуживанию

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General Information ix
LDC500 LDC501 LDC502
Units
Analog modulation Input range
−
10 to
+
10 V
Input impedance 2 k
Ω
typ.
Transfer function
high range, CC mode 10 50 200
low range, CC mode 5 25 100 mA
/
V
CP mode 500 500 1000
μ
A
/
V
Modulation bandwidth (
−
3 dB)[4]
high BW, CC mode DC–1.0 0.8 MHz
low BW, CC mode DC–10 kHz
high BW, CP mode DC–5 kHz
low BW, CP mode DC–100 Hz
Photodiode feedback Bias voltage 0–5 V
Photodiode current 0–5000 0–10,000
μ
A
Setpoint resolution [5] 0.1
μ
A
Accuracy [5]
±
3
±
6
μ
A
Trigger output TTL pulse width (negative) 10
μ
s
Delay [6] 0.004–1000 s
Measurement & display LD current resolution 1 10 100
μ
A
accuracy
±
200 ppm FS
PD current resolution 0.1
μ
A
accuracy
±
200 ppm FS
LD voltage resolution 1 mV
accuracy
±
300 ppm FS
Conditions:
[1] Measured electrically at 1 kHz through a 50
Ω
load (LDC500), 10
Ω
load (LDC501), 4
Ω
load (LDC502) .
[2] Measured electrically with an RMS meter from 10 Hz to 1 MHz,
through a 50
Ω
load (LDC500), 10
Ω
load (LDC501), 4
Ω
load
(LDC502).
[3] Output current change, measured with an oscilloscope, upon remov-
ing AC power cord.
[4] Bandwidth can be a
ff
ected by cable and load parameters.
[5] In CP control mode.
[6] Delay programmed by the remote
SYND
command.
LDC500 Series Laser Diode Controllers