D2 Laser Controller - D2-105



D2 Laser Controller

D2-105
controller
  • PID for temperature control over low thermal mass lasers
  • Lowest-noise laser controller commercially available
  • Two-stage PID temperature control
  • High-speed servo and RF inputs
  • Current limit and safe turn-on
  • High-modulation bandwidth
Made in USA Made in the USA


The D2-105 is a precision diode laser current source, based on the Libbrecht-Hall circuit. With a current noise density <100 pA/sqrt(Hz) 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 input enables high-speed (>10 MHz) servo control of the laser frequency. Additionally, extremely high-speed modulation is enabled by a front panel RF port, which is connected directly to the laser current output SMA. This enables the user to directly write sidebands onto the laser via injection current, which can save the use of expensive AOMs and EOMs. To keep 60 Hz harmonics off the output current, the D2-105 is powered with either the linear D2-005 power supply or user-provided power via a breakout board (D2-001).

The D2-105 features two independent PID loop filters for controlling the temperature of your diode laser. The range of parameters for one of these loops is expanded to make it especially easy to temperature-control low thermal mass lasers such as the Photodigm TOSA. It is possible to have the other loop modified to control fast loops also; ask for the -FL option.

D2 Laser Controller detail

Current Source1

Parameter D2-105-200 D2-105-500 Units
Current Range 0-200 0-500 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 10MHz) < 300 < 500 nA
Monitor Resolution (Display) 0.1 1 mA
Absolute Accuracy 2 2 %
Temperature Coefficient <1 <5 µA/°C

Current Servo Input

Parameter D2-105-200 D2-105-500 Units
Input Impedance 1000 1000 kΩ
Bandwidth >10 >10 MHz
Modulation Coefficient 1 1 mA/V
Input Modulation Range ±10 ±10 V
RF Input Bandwidth 400 kHz to >1 GHz 400 kHz to >1 GHz

Temperature Control

Parameter D2-105-200 D2-105-500 Units
Temperature Setpoint Range 1-50 1-50 °C
Long Term Stability (T2) ~1 ~1 mK/day
Max TEC Current 1 1 A
Max TEC Voltage 4 4 V
Temperature Servo Input Impedance 100 100 kΩ
Temp. Modulation Coeff: Low Gain 95 95 mK/V
Temp. Modulation Coeff: Low Gain 9,000 9,000 mK/V

Power Supply

Parameter Value Units
Voltage Input +5, ±15 VDC
Power Supply D2-005

Environmental

Parameter Value Units
Operating Temperature >15 and <30 °C
Humidity <60 %
Dew Point <15 °C
1 Specifications defined for use with a D2-005 power supply.

Manuals

Additional Resources

PDF IconZip IconLink IconD2-105 Datasheet
PDF IconZip IconLink IconD2-105 RoHS Letter of Certification
PDF IconZip IconLink IconD2-105 Laser Controller Drawing
PDF IconZip IconLink IconD2-105 Laser Controller STEP
D2 DBR Laser Module - D2-200

D2 DBR Laser Module

D2-200

laser
D2 Power Distribution Cable - D2-CABLE-001

D2 Power Distribution Cable

D2-CABLE-001

accessory
D2 Bundled Current & TEC Control Cables - D2-CABLE-003

D2 Bundled Current & TEC Control Cables

D2-CABLE-003

accessory
D2 Laser Controller Breakout Board - D2-007

D2 Laser Controller Breakout Board

D2-007

accessory

Product Code Product Description Price
D2-105-200 D2 Laser Controller, (200mA), Standard Loop Contact Sales
D2-105-200-FL D2 Laser Controller, (200mA), Fast Loop Contact Sales
D2-105-500 D2 Laser Controller, (500mA), Standard Loop Contact Sales
D2-105-500-FL D2 Laser Controller, (500mA), Fast Loop Contact Sales