Diode Laser Controller (DLC)
The MOGLabs Diode Laser Controller provides everything needed to drive your tunable external cavity diode laser (ECDL), and lock it to an atomic or other frequency reference. It offers a combination of impressive performance and ease-of-use: ergonomic and low-noise analogue controls, and intuitive front-panel selection of the signals you need to monitor.
Features
- - Intuitive controls with logarithmic response
- - Auto-lock to center of oscilloscope trace
- - Two oscilloscope trace selector switches
- - Eight functions in one unit:
- - Ultra low noise current source
- - Temperature controller
- - Photodetector
- - Demodulator (lock-in amplifier)
- - Feedback servos
- - Piezo drivers
- - Modulator driver
- - Sweep ramp generator
Options
- - 100, 200, 250, 500mA max current
- - High compliance voltage
- - Rack mount kits
Applications
- - Laser cooling and trapping
- - Bose-Einstein condensation
- - Trapped ion quantum computing
- - Quantum optics: squeezed light
- - Electromagnetic transparency and slow light
- - Time and frequency standards
- - Laser spectroscopy
Specifications
Current
| Output current | DLC102/202: 0 – 100mA/200mA,±10μA display resolution DLC252/502: 250mA/500mA,±100μA display resolution |
|---|---|
| Noise | Below 100pA/√Hz (DC to 1MHz) |
| External modulation | 0 – 1.0MHz (–3dB), 100μA/V; current modulation to 10MHz (–3dB) |
| Compliance voltage | Max diode voltage 3.2V@200mA, 6V@100mA; optionally higher |
Temperature
| Range | 0 – 30°C (−40°C to 50°C optional), ±0.1°C display resolution |
|---|---|
| Stability | ±5mK/°C |
| TEC power | ±2.5A, ±9V (22W) |
| Sensor | NTC 10kΩ (provided) Alternately AD590, AD592, auto-detected; reads °C in all cases |
Photodetector
| Photodiodes | Si-PIN, 740–1100nm, lensed ±10°; options: 370/400–1100nm, ±20° |
|---|---|
| Bandwidth | 720kHz (−3dB); CMRR >120dB |
| Coupling | ac, dc, differential pair |
| Dimensions | 30x30x60mm (approx) |
Frequency Feedback Servos
| Modulation | 250kHz ± 20kHz; current driver output ±500mA ±8V |
|---|---|
| Bandwidth | 40kHz typical (laser-dependent) |
| Phase | 0 − 360° |
| Feedback | Double integrator (slow, piezo) + single integrator (fast, current) |
| Gain | ±20dB master plus ±20dB on slow, fast channels |
| Sample and Hold | External control of lock/sweep; allows frequency jump and relock |
Sweep/Scan
| Sweep | Scan rate 4Hz to 70Hz |
|---|---|
| Piezo output | 0 – 150V, 5mA, 2 channels; stack output limit can be set to 120V |
| Range | Typically 50GHz, laser dependent |
Power and Dimensions
| IEC input | 100 or 110/120 or 220/240V, 50/60 Hz, 3A |
|---|---|
| IEC output | Common ground with input |
| Dimensions | 19” 2U, 88x422x210mm (H x W x D), 4.3kg, optional rack-mount kit |
| Power consumption | 35W/60W with low/high TEC load |
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Diode Laser Controller | MOGLabs
