Description
The ModeLDC is a low-noise, all-in-one current source and temperature controller for laser diodes. It is available in two versions: with a maximum drive current of up to 1.5A (for 14-pin and 10-pin butterfly-packaged lasers) and a current of up to 15A for high-power laser diodes.
Main features:
- Integrated mounts for various laser diodes
- Low-noise current source
- Easy to use, with knob adjustment of the current
- Currents up to 1.5A or 15A
- Excellent temperature stability of 0.002oC
- Compact housing (180x130x50 mm)
- LabVIEW-based software package available
Technical parameters:
| ModeLDC1A5 | ModeLDC15A | |
| Current control range | 0 - 1.5 A | 0 - 15A |
| Compliance voltage | 2.5V | 9V |
| Current setting resolution |
100 µA via front panel knob 25 µA via remote control |
10 mA |
| Current setting Accuracy | ± (0.1% + 300 µA) | ± (1% + 30 mA) |
| Noise and ripple RMS* |
3.5 µA full modulation bandwidth 0.8 µA with noise reduction filter |
30 µA |
| Noise Density (typ.) @ 1 kHz | 5 nA/Hz1/2 | 200 nA/Hz1/2 |
| Temperature coefficient | < 10 ppm/K | < 100 ppm/K |
| Current limit setting range | 0.5mA to 1.5A | 0mA to 15A |
| Current limit setting accuracy | 1% | 5% |
| Modulation bandwidth (3 dB) |
DC to 300 kHz full bandwidth DC to 10 kHz with noise reduction filter |
DC to 50 kHz |
| Modulation coefficient | 10 / 20 / 50 / 100 mA/V (selectable) | |
| TEC current control range | -1.8A / +1.8A | 10A max. |
| TEC compliance voltage | 5.5V | 12V |
| TEC Maximum output power | 10.5 W | 120W |
| TEC Current resolution | 1 mA | 1 mA |
| NTC Thermistor resistance measurement range | 100Ω - 500kΩ | 100Ω - 500kΩ |
| NTC Sensor temperature control range | -40oC to +180oC | 40oC to +180oC |
| Temperature resolution (at 25oC) | 0.002oC | 0.01oC |
| Resistance resolution (at 25oC) | 0.9Ω | 10Ω |
| Temperature accuracy | 0.5% | 2% |
| Temperature setting range | -10oC to +60oC | 0oC to +60oC |
Application notes - scientific publications
[1] Philipp Steinleitner, Nathalie Nagl, Maciej Kowalczyk, Jinwei Zhang, Vladimir Pervak, Christina Hofer, Arkadiusz Hudzikowski, Jarosław Sotor, Alexander Weigel, Ferenc Krausz, Ka Fai Mak, "Single-cycle infrared waveform control," Nat. Photon. 16, 512–518 (2022),
[2] Maciej Kowalczyk, Nathalie Nagl, Philipp Steinleitner, Nicholas Karpowicz, Vladimir Pervak, Aleksander Głuszek, Arkadiusz Hudzikowski, Ferenc Krausz, Ka Fai Mak, and Alexander Weigel, "Ultra-CEP-stable single-cycle pulses at 2.2 µm," Optica 10, 801-811 (2023),