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The D2-105 is a precision diode laser current source based on the Libbrecht-Hall* circuit. This ultra-low current noise is ideally suited for precision spectroscopy and metrology applications. Furthermore two-stages of temperature control provide sub-mK stability, ensuring long term frequency stability. A front panel current servo BNC enables high-speed (> 10 MHz) servo control of the laser’s frequency. Additionally, extremely high speed modulation is enabled by a front panel RF port, which is connected directly to the laser current output SMA. Powered with an external power supply (D2-005) or user provided power via a breakout board (D2-001).
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|
D2-105 |
D2-105-500 |
Units |
|
Current Source |
|
|
|
|
Current range |
0-200 |
0-500 |
mA |
|
Current noise density |
<100 |
<200 |
pA/√Hz |
|
RMS Noise (10Hz - 100kHz) |
<50 |
<100 |
nA |
|
RMS Noise (10Hz - 1MHz) |
<100 |
<150 |
nA |
|
RMS Noise (10Hz - 10MHz) |
<300 |
<500 |
nA |
|
Monitor Resolution (Display) |
0.1 |
1 |
m A |
|
Absolute accuracy |
2 |
2 |
% |
|
Temperature coefficient |
<1 |
<5 |
m A/°C |
|
Current Servo Input |
|
|
|
|
Input impedance |
1000 |
1000 |
W |
|
Bandwidth |
>10 |
>10 |
MHz |
|
Modulation coefficient |
1 |
1 |
mA/V |
|
Temp Servo Input |
|
|
|
|
Input impedance |
100 |
100 |
k W |
|
Temp modulation coefficient |
|
|
|
|
Gain = Low |
-20 |
-20 |
mK/V |
|
Gain = High |
-600 |
-600 |
mK/V |
|
Temperature Control |
|
|
|
|
Temperature setpoint range |
1-50 |
1-50 |
°C |
|
Long term stability (T2) |
~1 |
~1 |
mK/day |
|
Max TEC current (voltage) |
1 (4) |
1 (4) |
A (V) |
Features:
High-speed servo and RF inputs
Current limit and slow turn-on
