ICE-CP1 Current Controller and Offset Phase Lock Servo

ICE-CP1 current control and offset phase lock servo for ICE system

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  • Libbrecht-Hall current source
  • Lowest current noise available
  • PID offset phase lock servo
  • 3 MHz bandwidth
  • Internal ramp

ICE (Integrated Control Electronics) is a compact suite of digitally controlled electronics that will precisely drive and stabilize our D2-100 DBR lasers and an associated array of photonics tools. It will simplify your experimental design and reduce SWaP while still providing the same high performance we offer in our D2 modular units.

The ICE-CP1 is a board-level current driver and offset phase lock servo integrated onto the same PCB. Tight integration improves the performance of both components that are needed to drive and stabilize a precision diode laser.

We have used the Libbrecht-Hall current driver design once again because it continues to be the lowest noise current source available on the market.

The servo features a full 3 MHz of bandwidth – limited only by the 4 MHz peak lock dither.  It will provide a tight peak lock to an error signal without the use of an external modulation source and lock in amplifier.

General Specifications      
  ICE-CP1-200 ICE-CP1-500 Units
Current Source    
Current Range 200 500 mA
Current Noise Density 100 200 pA/√ Hz
RMS Noise (10 Hz to 100 kHz) <50 <100 nA
RMS Noise (10 Hz to 1 MHz) <100 <150 nA
RMS Noise (10 Hz to 10 MHz) <300 <500 nA
Absolute Accuracy <2 <2 %
Temperature Coefficient <1 <5 µA/°C
Offset Phase Lock Servo      
Error Input Range ±1 V
Input Voltage Noise <5   nV/√ Hz
Loop Bandwidth1 >3   MHz
ƒI (Integral/Proportional Zero) 3, 10, 30, 100, 300   kHz
ƒD (Proportional/Differential Zero) Fixed at 3x ƒI or off    
Proportional Gain -20 to +22   dB
Gain Resolution 2   dB
All specifications subject to change