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976nm, 55W Output, 105µm Multimode Fiber-Coupled Laser Diode in Turn-Key Control System

  • nLight Element 976nm Laser Diode
  • 976nm Laser Diode, Element by nLight
  • High Power Laser Diode Source Control Connector
  • 976nm Diode Laser Diode Dimensions
  • 976nm-55w-laser-diode-infographic
  • Laser Diode Control Sofware

sku / item#: LDX-976NM-55W
ships: Request a Quote for Current Ship Date

Key Features
  • User Adjustable Output Power 0 to 55 Watts (CW)
  • 105 µm Core Fiber; 95% of Power within 0.15 NA
  • TEC-Cooled Internal Laser Mount, Air-Cooled Chassis
  • RS232 Interface with LabVIEW Drivers; USB Optional
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  • FACTORY CONFIGURED LIMITS: Current and temperature limits keep laser diode in safe operating range
  • INSTALLATION SUPPORT: Get up and running fast with unlimited phone & email tech-support; see contact info in the images section to the left

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Why do Scientists & Engineers Choose Laser Lab Source?

PRICE $8495.00
Optical OUTPUT: Laser Diode Specifications (typical @ 25°C)
  • Laser Center Wavelength: 976 nm, ± 3 nm
  • Laser Output Power Range: 0 - 55 Watts (user adjustable)
  • Laser Spectral Line Width (FWHM): 5 nm
  • Power within 0.15 NA: 95%
  • Fiber Core / Clad Diameter: 105 µm / 125 µm
  • Fiber Termination (Connector): SMA905 Rear Panel Output Connector
  • Fiber NA / Index Type: 0.22 NA / Step Index
  • Soft-Start Current Ramp to Setpoint (User Programmable)
  • Soft-Start Current Ramp Factory Default Set to 300 Milliseconds
  • Factory Pre-Set Maximum Current Limit
  • Factory Pre-Set Upper Temperature Limit
  • ESD and Power Surge Clamp, AC Line Filter
  • Reverse Voltage Transient Clamp
  • Keylock Switch and Safety Interlock
  • Short Circuit when Laser Diode Current Turned OFF
  • Front Panel e-Stop Button Emergency Shut-Down
  • Open Circuit Detection and Fast Shut-Down
CONTROL UNIT TEMPERATURE CONTROLLER and TEC cooled laser diode mounting plate Specifications
  • Cooling Design: Peltier (TEC) Cooled Laser Diode Mounting Plate
  • Laser Temperature Setpoint: User Adjustable within Factory Pre-Set Range (Upper Limit Pre-Set to Protect Laser)
  • TEC Control Loop Algorithm: Full P.I.D., User-Adjustable Parameters
  • P.I.D. Variables: Factory Pre-Set for Optimum Performance
  • Laser Diode Upper & Lower Temperature Limits: Factory Pre-Set
  • Control Unit Waste Heat Removed by Forced-Air
  • QCW Pulse Rise and Fall Time: < 20 μs to CW (< 5 μs on request)
  • QCW Trigger: Internal Function Generator or External Trigger
  • QCW Pulse Modes: Continuous Pulses, Single Pulses, Bursts
  • Pulse Time Base Accuracy: ± 1.0%
  • Modulation Signal: Accepts External Digital (TTL) or Analog
  • Modulation Input Connector: BNC, Input Impedance 10K ohm
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  • Modulation Input Voltage Range: 0 ~ 4 Volts (4V = Max Current)
  • Analog Modulation Bandwidth: 1 Hz – 20 kHz
System Dimensions and Power Requirement
  • 2U Standard Units High, Standard 19 Inch Rack Width
  • Dimensions: 89.0 mm (h) x 482 mm (w) x 260 mm (l)
  • Input Power: Universal 110V ~230 VAC, 50/60Hz
  • Rack Mount Brackets: Included
  • Bench-top Folding Feet: Included
User Interface
  • Front Panel LCD, Full Alphanumeric Display with Key Pad
  • RS232 Standard, LabView Drivers Included
  • USB Optional; Inquire
  • GUI Control Software Included
Fiber Output
  • Fiber Core / Clad Diameter: 105 µm / 125 µm
  • Fiber Numeric Aperture: 0.22
  • Power within 0.15 NA: 95%
  • Fiber Termination (Connector): None (bare fiber)
  • Fiber Index Type: Step Index
  • Fiber Jacketing: 900 µm Hytrel Loose Tube Buffer
  • Fiber Pigtail Exits the Control Unit through the Rear Panel (no connector)

Product Overview:

976nm, 55 Watt Turn-Key Laser Diode Source Overview

The LDX-976NM-55W laser diode system is a high performance fully integrated turn-key instrument for R&D and manufacturing applications. It includes an integrated 976 nm high power fiber coupled laser, a high power current source, TEC controller, and a Peltier cooled laser mounting plate assembly. All of these components are integrated into a 19 inch wide, 2U high enclosure. All of the systems settings are pre-configured at the factory and the unit is calibrated with the integrated laser diode. Industry-leading protection features ensure that the laser diode is protected at all times.

User has Complete Control of the 976nm Laser

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. Laser output power is set by adjusting the current level (ACC mode) or adjusting the laser power in watts using the automatic power (APC) control mode. The APC mode utilizes the laser diode's internal monitor photo-diode to feedback to the bias current source. The LDX systems can be controlled remotely by RS232 or optional USB interface, and the system ships with LabView drivers.

Factory-Configured Laser Diode Protection

The LDX-976NM-55W series instruments ship with pre-configured protection settings to make sure that the laser is run safely and operates within the specified maximum operating limits. These limits include the upper current limit and upper temperature limit. Additionally, a soft-start current ramp is set to 300 milliseconds to protect the laser from thermal shock when the bias current is applied. This soft-start ramp time can also be customer configured through the front panel or digital interface. These units also have robust clamping circuitry to protect the laser against power surges and ESD.

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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