Stanford LDC501 Laser Diode Controller

Laser diode controller with integrated temperature controller

Stanford Research

Distributed only in Germany
This is a discontinued product
More Information? Please contact us.

Key Facts

  • Laser Diode Controller
  • TEC Controller

Brief Description

Introducing the LDC501Laser Diode Controller: a highly stable, low-noise current source, with an integrated temperature controller - all at a very affordable price.

Specifications

Laser Diode Current Source
Range 0 to 500 mA
Setpoint resolution 10 µA

Key Facts

  • Laser Diode Controller
    • 500mA low-noise current source
    • Low drift (<10ppm/°C)
    • 1.1 MHz modulation
    • GPIB, RS-232 and Ethernet
  • TEC Controller
    • 36W output power
    • High stability 0.0005°C/°C
    • Thermistor, RTD and IC sensors
    • Auto-tuning of loop parameters
    • CC & CP mode dynamic switching

Brief Description

Introducing the LDC501Laser Diode Controller: a highly stable, low-noise current source, with an integrated temperature controller - all at a very affordable price.

The LDC501 is the ideal instrument for controlling the current and temperature of your laser diodes. It has the performance and features you expect from instruments costing twice as much.

With a low-noise current source that delivers up to 500 mA, a 36 W high-precision temperature controller, and standard computer interfaces including Ethernet, the LDC501 is the right choice for your laser diode testing and control applications.

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 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
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