Stanford LDC501 Laser Diode Controller
Laser diode controller with integrated temperature controller (Distributed only in Germany.)
Specifications
Laser Diode Current Source
| Current Source | |
|---|---|
| Range | 0 to 500 mA |
| Setpoint resolution | 10 µA |
| Accuracy | ±0.01 % of full scale |
| Output impedance | >1MΩ (DC) |
| Stability | |
| Thermal | <10 ppm/°C |
| Short-term (1 hr.) | <5 ppm full scale |
| Long-term (24 hr.) | <20 ppm full scale |
| Noise | <3.5 nA/√Hz |
| <3 µA rms (10 Hz to 100 kHz) | |
| Compliance voltage | |
| Range | 0 to 10V, programmable |
| Resolution | 10mA |
| Accuracy | ±0.5% |
| Current Limit | |
| Range | 0 to 501mA |
| Resolution | 1mA |
| Accuracy | ±2mA |
| Analog Modulation | |
| Input range | 0 to 10V |
| Input impedance | 4 kΩ |
| Gain | |
| CC mode | 50mA/V (LD current) |
| CP mode | 500 µA/V (PD current) |
| Bandwidth (3 dB) | |
| CC mode | DC to 1.1 MHz (high) |
| DC to 10 kHz (low) | |
| CP mode | DC to 10 kHz (high) |
| DC to 90 Hz (low) | |
| Monitor Photodiode | |
| Bias voltage | 0 to 5V, programmable |
| PD current range | 3 to 5000 µA |
| Setpoint resolution | 1 µA (CP mode) |
| Setpoint accuracy | ±2 µA |
| Drift | ±0.03% (CP mode) |
| Measurement & Display | |
| Output current | |
| Range | 0 to 501mA |
| Resolution | 0.01mA |
| Accuracy | ±0.03 % FS |
| Photodiode current | |
| Range | 0 to 5010 µA |
| Resolution | 0.1 µA |
| Laser diode forward voltage | |
| Range | 0 to 12V |
| Resolution | 1mV |
| Accuracy | ±2mV (4 wire) |
Temperature Controller
| Temperature Control | |
|---|---|
| Control range | |
| Firmware limits | -150 °C to +250 °C |
| Setpoint resolution | 0.001 °C |
| Setpoint accuracy | 0.01 °C, sensor dependent |
| Stability (typ.) | (using a 10 kΩ NTD thermistor) |
| Thermal | 0.0005°C/°C (vs. ambient) |
| Short-term (1 hr.) | ±0.001 °C |
| Long-term (24 hr.) | ±0.004 °C |
| Control algorithm | PID, with autotuning & antiwindup |
| TEC Output | |
| Source type | Linear, bipolar current source |
| Current range | -4.5A to +4.5A |
| Setpoint resolution | 1mA |
| Setpoint accuracy | ±10mA |
| Max. power | 36W |
| Compliance voltage | >8VDC |
| Current noise | <1mA rms @ 4A output |
| Current limits | |
| Range | -4.5A to +4.5A, low & high |
| Accuracy | ±5mA |
| Temperature Sensors | |
| Thermistors | 10 to 500 kΩ (sensor bias at |
| 10 µA, 100 µA, 1000 µA) | |
| RTD | Pt-100, Pt-1000 (1mA sensor bias) |
| IC voltage sensors | LM335 and equivalent |
| IC current sensors | AD590, TMP17, and equivalent |
| Measurement & Display | |
| Temperature | |
| Range | -150 °C to +250 °C |
| Resolution | 0.001 °C |
| Thermistor | |
| Range | 0 to 500 kΩ |
| Resolution | 0.01% |
| Accuracy | 0.03% |
| TEC current | |
| Range | -4.5A to +4.5A |
| Resolution | 1mA |
| Accuracy | ±10mA |
| TEC voltage | |
| Range | -9V to + 9V |
| Resolution | 1mV |
| Accuracy | ±10mV (4 wire) |
| General | |
| Instrument connectors | DB9-F (laser diode), DB15-F (TEC) |
| BNC (modulate, trigger output) | |
| Remote interfaces | GPIB (IEEE488.2), RS-232, Ethernet |
| Power | 100 to 120VAC, 220 to 240VAC, |
| 50 Hz/60 Hz, 100W | |
| Dimensions | 7" × 5" × 15" (WHL) |
| Weight | 15 lbs. |
| Warranty | One years parts and labor on defects |
| in material and workmanship | |
