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Low Noise Laser Diode Control & Mounting System for Butterfly Packaged Lasers:
◾ 500 mA Low Noise Current Source
◾ 28 Watt TEC Controller
◾ Butterfly Package Mount + All Cables

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  • LDC controller for laser diodes software

sku / item#: RLS/LDC-158-T1
ships: Request Quote for Current Lead Time

Key Features
  • Low Noise, High Stability Laser Diode Control and Mount System for Single Frequency / Single Mode Laser Diodes
  • 500 mA Laser Diode Driver
  • 28 Watt TEC Controller
  • Pre-Wired for Type 1 Butterfly Mount (Type 2 on request)

Price and Delivery Quote

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Why do Scientists & Engineers Choose Laser Lab Source?

PRICE $2645.00
  • Laser Diode Current Range: 0.00 - 500.00 mA
  • Compliance Voltage Range: 14 Volts
  • Current Noise & Ripple (rms): ± 2.5 μA
  • Current Setpoint Resolution: 100 μA
  • Current Stability (4 hours): ≤ 100 ppm (@ full scale)
  • Current Setpoint Accuracy: ± 0.5%
  • Photodiode Current Measurement Range: 0.00 - 4,000 μA
  • Photodiode Measurement Accuracy: < +/- 1.0%
  • Current Limit Setpoint Accuracy: ± 2%
  • Current Measurement Accuracy: ± 0.5%
  • Soft-Start Current Ramp Factory Default Set to 300 Milliseconds
  • Current Limit and Voltage Limit
  • Temperature Limits (Upper and Lower)
  • Open Circuit Detection Short Circuit when Laser Diode Current Turned OFF
  • Temperature Limits (Upper and Lower)
  • ESD and Power Surge Clamp
  • AC Line Filte
  • Interlock Shut-Off
  • Soft-Start Current Ramp to Setpoint (User Programmable)
  • TEC Output Power Total: 28 Watts
  • TEC Output Current Range (bipolar): ± 2.00 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
  • TEC Control Output: Bipolar (Cool and Heat)
  • Pulse Width Range: < 20μs, 10%-90% (< 7μs on request)
  • Pulse Repetition Rate Range: DC ~ 50 kHz
  • Pulse from Internal Function Generator or External Trigger
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  • Modulation Input Voltage Range: 0 ~ 4 Volts (4V = Max Current)
  • Analog Modulation Bandwidth: 1 Hz – 20 kHz
USER INTERFACE and General Specifications
  • Front Panel: Alphanumeric LCD
  • USB: Optional (additional $95.00)
  • RS-232: Standard
  • LabVIEW Drivers Included
  • Input Power: Universal 110V~230VAC, 50/60 Hz
Driver and TEC Controller Connectors and Dimensions
  • Current Source and Peltier Cooler (TEC): 15 Pin D-SUB, Female
  • Modulation: BNC
  • Controller Dimensions: 105mm (Width) x 65mm (Height) x 200mm (Depth)
  • Weight: ~ 3 kg
Butterfly Mount and Connecting Cable Specifications
  • Package Style: 14 Pin Butterfly (Pin Type 1)
  • Maximum Laser Diode Bias Current: 4 Amps
  • Maximum TEC Current: 5 Amps
  • Graphite Thermal Pad Thickness: 70 μm interface
  • Flex-PCB Mounting Pin Material: Gold Qmax
  • Laser Diode Driver & TEC Interface Connector: 15 Pin d-Sub
  • Dimensions: 60mm x 64mm x 53mm
Available Models
  • LDC-158-T1 for Butterfly Pin Type 1 (see images)
  • LDC-158-T2 for Butterfly Pin Type 2 (see images)

Product Overview:

Laser Diode Control System Overview

These pre-configured control systems are designed and configured for controlling DFB, DBR and Fabry-Perot laser diodes with < 100 mW of laser output power. They are optimized for fiber coupled lasers from companies such as NEL, Eblana Photonics, Nanoplus and other manufacturers of low power butterfly packaged laser diodes. The system includes: a precision current source, a full PID temperature controller, an actively cooled heat sink, and all of the required connecting cables. The current source offers industry leading protection for your laser diode. The mounting socket and heat sink offer a high performance, pre-configured mounting solution for a butterfly package. The LDC-158-TYPEx is an affordable, high performance solution for safely powering your laser and running at a stable temperature in laboratory environments.

Laser Diode Protection Features

These units offer the highest level laser diode protection available to ensure that your device under test is protected at all times. Soft-start current, current and temperature limits, and a fast shut-down sequence keep your device protected at all times. Additionally, transient filters and AC line filters protect the laser against brown-out or black-out power conditions. The precision TEC controller offers a full P.I.D. control loop for fast and efficient thermal stabilization. A 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.

Temperature Controller Features

The full PID loop provides millidegree temperature stability, and can quickly stabilize high heat loads to the temperature set-point to reduce the risk of damage to your laser.

User adjustable upper and lower temperature limits can be programmed to protect the laser diode and the Peltier device. Additionally, TEC output current limits are user-configured to protect the Peltier device from over-drive damage.

Modulation, Internal Function Generator, and QCW Pulse Modes

In addition to CW (continuous wave) mode of operation, the 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.

Intuitive Front Panel User Interface

The user also complete control of all laser diode bias and temperature control parameters through an intuitive front panel menu. The front panel has an LCD display with a key pad. For remote control, these systems come with a standard RS-232 interface and can be ordered with an optional USB interface. The LabView GUI (included) makes set-up and control of the system fast and simple.

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