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808nm, 80 Watt Turn-Key Laser Diode Source System

  • coherent laser diode system diagram
  • 80W coherent laser diode
  • coherent laser diode 100W CCP package
  • coherent 80W laser diode front
  • 808nm 80W laser diode configuration

sku / item#: RLS/LDX-808NM-80W
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Key Features
  • Includes Integrated COHERENT Laser Model Number 80W-28FF
  • User Adjustable Laser Output Power 0 to 80 Watts
  • User has Full Control of All Laser Diode Parameters
  • Pre-Configured Peltier Cooled Laser Diode Mount
  • Factory Configured Current and Temperature Limits
  • RS232 Interface with LabVIEW Drivers; USB Optional
  • Offered by OsTech, a Laser Lab Source Marketplace Seller
  • Sold & Supported in North America by: LaserDiodeControl.com, part of the
    Laser Lab Source Marketplace Group

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PRICE $6045.00
Laser Diode Specifications (typical @ 25°C)
  • Maximum Optical Output Power: 80 Watts
  • Center Wavelength: 808 nm (±3 nm)
  • Spectral Width (FWHM): 3 nm
  • Emitter Width: 140 (μm)
  • Fill Factor: 28%
  • Fast Axis Divergence (unlensed) (FWHM): 29 degrees
  • Fast Axis Divergence (lensed) (FWHM): <1 degrees
  • Slow Axis Divergence (FWHM): < 10 degrees
  • Operation Mode: CW or QCW
  • Standard Product: Unlensed (request price for fast axis lens option)
  • COHERENT Laser Model Number: 80W 28FF
Laser Diode Electrical Requirements (Supplied by Included controller)
  • Typical Operation Current: 75 Amps (supplier by controller)
  • Typical Threshold Current: 12 Amps (supplied by controller)
  • Maximum Operating Voltage: 2 Volts (supplied by controller)
  • Current Range: 0.00 - 100.00 Amps
  • Compliance Voltage Range: 0.12 - 4 Volts
  • Current Source Noise & Ripple (rms): < ± 0.5% ( of full scale current )
  • Current Setpoint Resolution: 25 mA
  • Current Setpoint Accuracy: +/- 0.5%
  • Current Source Stability (4 hours): ≤ 300 ppm
  • Current Source Limit Setpoint Accuracy: ± 2%
  • Photodiode Current Measurement Accuracy: ± 0.5%
  • Photodiode Current Measurement Range: 0.00 - 4,000 μA
  • Factory Pre-Set Maximum Current Limit
  • Factory Pre-Set Upper Temperature Limit
  • Soft-Start Current Ramp Factory Default Set to 300 Milliseconds
  • Soft-Start Current Ramp to Setpoint (User Programmable)
  • ESD and Power Surge Clamp Reverse Voltage
  • Reverse Voltage Transient Clamp
  • AC Line Filter
  • Keylock Switch and Safety Interlock
  • Short Circuit when Laser Diode Current Turned OFF
  • Open Circuit Detection
Control Unit - TEC Controller Specifications
  • Cooling Design: Peltier (TEC) Cooled Laser Diode Mounting Plate
  • TEC Controller Output Power Total: 216 Watts
  • TEC Controller Output Current Range (bipolar): ± 12.00 Amps
  • TEC Controller Output Voltage Range (bipolar) : ± 18.00 Volts
  • TEC Control Loop Algorithm: Full P.I.D.
  • Temperature Control Accuracy: 0.05°C
  • TEC Controller Setpoint Resolution: 0.01°C
  • Temperature Sensor Inputs: 10 kΩ Thermistor, NTC, PT100, PT1000
  • Temperature Range: -25°C to 150°C
  • Pre-Set Temperture Control Range: 15 °C - 30 °C
  • Cooling Method: TEC-Peltier Coolers, Dual Fans for Waste Heat Removal
  • Laser Diode Mounting Plate Material: Copper
  • Heat Sink Thermal Load Maximum: 120 Watts (@ 25ºC)
  • Heat Sink Fan Rated Input Voltage 24 VDC (supplied by controller)
  • Heat Sink Fan Rated Input Current: 300 mA (supplied by controller)
  • Laser Mounting Plate Area: 105 mm x 75 mm
  • Laser Mounting Plate Hole Footprint: Coherent CCP
  • Mounting Plate Integrated Thermistor: 10 kΩ
  • Thermal Resistance (mounting plate to laser package): < 0.06 K/W
  • Includes Thermal Pad / Phase Change Material Cut to Laser Diode Footprint
  • Front Panel LCD, Full Alphanumeric Display with Key Pad
  • RS232 Standard
  • USB Optional ($100.00)
  • LabView Drivers Included
  • GUI Control Software Included
Control Unit - QCW and Modulation SPECIFICATIONS
  • QCW Pulse Width: 25 μs to CW
  • Pulse Time Base Accuracy: ± 1.0%
  • QCW MODE 1: User Adjustable Pulse Width and Repetition Rate using Internal Pulse Generator
  • QCW MODE 2: External Trigger to Internal Pulse Generator, Rising Edge Triggered
  • MODULATION Input (BNC): Digital (TTL) or Analog MODULATION
  • MODULATION BNC Input Impedance: 10K ohm
  • MODULATION Input Voltage Range: 0 ~ 4 Volts (4V = Max Current)
  • Power Input: Universal 100 ~ 230 VAC, 50/60 Hz
  • System Weight (total): ~ 10 kg
  • Controller Dimensions: 275mm x 200mm x 127mm

Product Overview:

808nm, 80 Watt Turn-Key Laser Diode Source Overview

The LDX-808NM-80W turn-key laser diode source and control system includes a Coherent model 80W-28FF CCP-packaged laser diode bar, pre-configured laser diode controller, heat sink with TEC cooled laser mounting plate, and cables. This all-inclusive system is a complete plug-and-play solution for R&D applications. The controller is a 100 amp current source with a 336 watt Peltier/TEC temperature controller. The system also includes a high power TEC-cooled mounting plate with a fan cooled heat sink. The control system is optimized for the single bar package and comes pre-tested with the CCP packaged laser prior to shipment.

User has Complete Control of the 808nm Laser Diode

The user has complete control of the 80W Coherent laser through the front panel or through the rear panel RS232 (or optional USB interface). The user controls the bias current, temperature set-point, CW or modulated mode, and several other parameters. The front panel has an LCD display with a touch key-pad. The menu structure is simple to operate, and features a status menu with current and actual temperature for the default home page setting. For remote control, LabView drivers are available free of charge charge.

Factory-Configured Laser Diode Protection

High power laser diode protection features include a factory pre-set current limit, slow start current ramp to the user specified set point, factory pre-set temperature limits and clamping circuitry to protect the laser against power surges. The factory set default maximum current level is set during the calibration process to ensure the laser is not over-driven and damaged. The temperature limits are determined during calibration and are also factory set within a safe operating range to protect the laser against over-heating. In addition to the current the temperature limit protection settings, the user has the option of setting the soft-start current ramp time from 300 milliseconds up to 10 seconds. The system is set to a 300 millisecond ramp as the default mode. This user adjustable current ramp allows you to customize the "power on" sequence of the source for your specific application.

Flexible User Controls

Users have full control of the fiber coupled laser module power through a touch-key front panel menu and LCD display or through the digital interface. You control the high power laser diode amplitude by adjusting the current level or adjusting the laser in automatic power (APC) control mode (Watts of optical power) based on the internal monitor photodiode feedback to the bias current and temperature controller.

QCW and Modulation Features

In addition to standard CW mode, these units offer an external modulation input and circuitry and an internal function generator for quasi-CW pulsing applications. The internal function generator is used to generate QCW pulses from 20 μs to CW. The controller will also accept an external signal for the QCW trigger. The modulation can be either TTL or analog modulation from DC to 50 kHz. The modulation input is a BNC connector on the rear panel of the controller.

TEC Based Temperature Control System:

The system employs an integrated high power TEC temperature controller with a full P.I.D. control loop to deliver fast and efficient heat removal from the source laser module. The laser diode is mounted on a Peltier / TEC cooled, nickel plated copper mounting plate. The mounting plate offers very high surface finish and flatness for low thermal impedance. The cooled mounting plate for the laser is attached to a fan cooled air duct to remove the waste heat and keep the laser temperature stable.

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