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LDC-460 Series Laser Diode Controller, 4 Amp Laser Diode Current Source, 56 Watt TEC Controller

  • Laser Diode Controller Model LDC-460
  • Laser Diode Controller LDC Rear Panel
  • Laser Diode Controller Pin Schematic
  • LDC Laser Diode Controller Software Interface
  • laser diode driver and TEC controller front panel close up

sku / item#: LDC-460
ships: 2 to 3 weeks

Key Features
  • 0 ~ 4 Amp Laser Diode Current Source ; 56 Watt TEC / Peltier Temperature Controller
  • Integrated QCW Pulse Generator, 2 µs Rise / Fall Time
  • Analog or Digital Modulation Capable, 50 kHz BW
  • RS232 Interface with LabVIEW Drivers (USB Optional)

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Why do Scientists & Engineers Choose Laser Lab Source?

PRICE $2495.00
  • Output Current Range: 0 - 4 Amps
  • Compliance Voltage: 14 Volts
  • Current Noise & Ripple (rms): < ± 0.5% of Full Scale Current
  • Current Setpoint Resolution: 300 μA
  • Current Setpoint Accuracy: ± 0.5%
  • Current Stability (4 hours): ≤ 150 ppm (@ full scale)
  • Current Limit Setpoint Accuracy: ± 2%
  • Photodiode Current Measurement Accuracy: ± 0.5%
  • Photodiode Current Measurement Range: 0.00 - 700 μA
  • Soft-Start Current Ramp to Setpoint (User Programmable)
  • Soft-Start Current Ramp Factory Default Set to 300 Milliseconds
  • Current Limit
  • Temperature Limits (Upper and Lower)
  • Open Circuit Detection
  • Output Short Circuit when Laser Diode Current Turned OFF
  • ESD and Power Surge Clamp
  • Reverse Voltage Transient Clamp
  • Factory Pre-Set Default Upper Temperature Limit: 35°C
  • AC Line Filter
  • Rear Panel Keylock Switch and Safety Interlock
  • TEC Output Power Total: 56 Watts
  • TEC Output Current Range (bipolar): ± 4.00 Amps
  • TEC Output Voltage Range (bipolar) : ± 14.00 Volts
  • Temperature Sensor Inputs: 10 kΩ Thermistor, NTC, PT100, PT1000
  • TEC Control Loop Algorithm: Full P.I.D.
  • P.I.D. Variables: User Adjustable to Optimize Temp. Settling Speed
  • TEC Setpoint Resolution: 0.01°C
  • TEC Output Stability: ± 0.01°C (subject to ambient temp. stability)
  • Temperature Range: -25°C to 150°C
  • Factory Set Default Lower Temperature Limit: 5°C
  • Factory Set Default Upper Temperature Limit: 35°C
  • QCW Pulse Width Rise and Fall Time: < 25 μs
  • Pulse Time Base Accuracy: ± 1.0%
  • QCW Trigger: Internal (Integrated) Function Generator or External
  • MODULATION Input: Digital (TTL) or Analog
  • MODULATION Input: BNC, 10K Ohm
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  • MODULATION Input Voltage Range: 0 ~ 4 Volts (4V = Max Current)
  • Analog Modulation Bandwidth: 1 Hz – 20 kHz
  • RS232 Standard
  • USB Optional: $95.00 (Option SVC-USB)
  • LabView Drivers Included
  • Power Input: Universal 110 ~ 230 VAC, 50/60 Hz
  • Dimensions: 105 mm (Width) x 85 mm (Height) x 204 mm (Depth)

Product Overview:

Precision Laser Diode Controller Overview

The LDC-460 laser diode controller is an affordable precision laser diode controller. These units offer a 4A low noise current source paired with a high-stability 56 watt TEC controller. This benchtop laser diode controller is easy to operate, and highly reliable for R&D and laboratory environments. These units offer industry leading laser diode protection features to ensure that your laser is protected at all times. Protection circuits and features include soft-start current ramp, current and temperature limits and a fast shut-down sequence. Additionally, transient filters and AC line filters protect the laser against black-out or brown-out power conditions. The precision TEC controller employs a full P.I.D. control loop for fast and effective thermal stabilization. The back-panel safety interlock connector ensures that the laser diode current is not switched on until the user has determined it is safe to do so.

Modulation, Internal Function Generator, and QCW Pulse Modes

In addition to low noise CW (continuous wave) mode, the LDC-460 laser diode controller offers flexible modulation capabilities and a QCW mode. The rear panel of the controller has a BNC input for an analog or TTL digital modulation input with a 10k Ω input impedance. The controller has an internal function generator which can be used to set the quasi-CW pulses. In QCW mode, the user can also set the 100μs to CW pulses from a remote TTL signal source.

TEC Controller Features

The PID control loop provides millidegree temperature stability, quickly stabilizes high heat loads to the temperature set-point, and reduces the risk of damage from overheating due to transient temperature events. The user-adjustable temperature limits are programmable to protect the laser diode and the Peltier device. Additionally, TEC output current limits are user-configured to protect the Peltier device from over-current damage.

Front Panel and Remote User Interface

Setting up and operating this benchtop controller is fast and intuitive using the front panel LCD display and alphanumeric interface with a simple to use menu structure and key pad. The controller includes an RS-232 interface. The included LabView driver GUI makes set-up and control of the system fast and simple. The controller can be ordered with an optional USB interface; contact us for more information.

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