1.4.3.1 37J2B Laser Current Source Specifications
Current Source
Range
Set Point Accuracy
Set Point Resolution
Conlpliance Voltage (fixed)
Temperature Coefficient
S~abilih~~, for 1 hour
Stability, for
24
hours
Now and Ripplez7
High Bandwidth Mode:
Low Bandwidth Mode:
CW Mode (with 320 cable):
Worst Case Transients
Operationalz8:
Po\~,er-line inducedz9:
Photodiode Feedback
fbnge
Output Stability30
Accuracy
Bias Voltage
Laser Drive Current Dis~~lav
Output Current Range
Output Current Resolution
Output Current Accuracy at
25OC
Photodiode Current Range
Photodiode Current Resolution
Photodiode Current Accuracy
Rcsponsivity Range
Responsivity Resolution
Optical Power Range
Output Power Resolution
1000
mA
Ranee
0
-
1000.0
mA
f5
mA
20 pA
5
V
maximum
<
50 ppm/OC
<
20 ppm
<
50 ppm
4.0
p4
rms
<8uArms
<
2.5
uA
rms
0
-
3000.0 mA
f15
mA
60 pA
5
V
maximum
<
540 ppm/OC
<
20 ppm
<
50 ppm
<20 pA rms
<
12uArms
<5uArms
1
to 10,000 pA
f0.02%
5
V
reverse bias
(*
10%) (adjustable on back panel)
26Stability specifications are measured at half-scale output, after
a
one hour warmup period.
27~strapolated from resulting intensity fluctuations of a laser diode, measured optically with a 150
kHz
bandwidth
pllotodctcctor. Measurements made
with
a 1
MHz
detector are typically 10% better.
28~asimum output current transients resulting from normal operational situations (e.g., power on-off, current on-
off) as well as accidental situations (e.g., power line plug removal). For more information refer to
ILX
Noise and
Transient Test Standards publication.
29~asln~um output current transient resulting from a 200
V
power line transient spike. For more information
refer to
ILX
Noise and Transient Test Standards publication.
30Spec~ficd values are
a
percent of nominal. Constant-power mode stability specfication assumes zero drlft in
dctector responsi\ity.
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