Skip to main content

LDxCHA Laser Diode Drivers

Product information "LDxCHA Laser Diode Drivers"

Output Current LD 2.5-15 A; Chassis Mount; Compatible with Type A & B Lasers 

Wavelength Electronics’ LDxCHA series of low noise module type laser diode drivers provides current levels from 2.5 A up to 15 A. The following models are available: LD2.5CHA (2.5 A), LD5CHA (5 A), LD10CHA (10 A), or LD15CHA (15 A).

These drivers meet laser compliance requirements from 3 V with a single 5 V supply, and up to 28 V with an additional 30 V power supply, supporting applications such as materials processing, industrial laser cutting, and laser diode bars / stacks. This product family supports A & B type laser diodes.

The new circuitry in the LDxCHA allows for the laser diode current limit and the laser diode current setpoint to be fine-tuned without output current enabled to the laser. This allows users to set the specific safety and output levels required without risk of overdriving the laser during initial configuration.

The LDxCHA drivers, with their small size and easy mountability, can be attached directly to an optics table or designed into a system. Two trimpots set the current limit and current setpoint, while five spring loaded terminal blocks allow for simple wiring.

Built-in safety features ensure robust designs for real world operating conditions: clipping current limit ensures that the output current will never exceed the setpoint; and slow start circuit ramps the output current. Thoughtfully designed features provide valuable benefits and protect the laser against operational anomalies. Download the datasheet to view a more detailed specification chart, and then get in touch with AMS Technologies’ sales engineers so we can help you choose the right driver for your application.

Free, effective and responsive technical support is available to simplify integration of Wavelength products into your OEM design. Standard products can be easily modified to meet your application requirements. Get in touch with the AMS Technologies laser diode driver experts to discuss your customized solution!

Key Features:

  • Module Type, Benchtop or Chassis Mounting
  • Size: 29 x 53 x 114 mm
  • RMS Noise Current as Low as 35 μA at 100 kHz
  • Up to 15 A LD Current
  • +5 VDC Single Supply Operation for Single Emitters (3 V max. to Laser)
  • Up to +30 VDC Dual Supply Operation (28 V max. to Laser)
  • Maximum Power Dissipation: 25 to 85 W
  • Bandwidth 600 kHz (CC, Sine Wave)
  • Adjustable Clipping Current Limit
  • Over-voltage and Brownout Protection
  • Slow-start and Delay Circuitry
  • Constant Current or Constant Power Mode
  • Short-term Current Stability: <200 ppm

Applications: Materials Processing; Industrial Laser Cutting; Laser Diode Bars / Stacks

Manufacturer "Wavelength Electronics"
Wavelength Electronics, Inc. is a manufacturer of precision electronics established in 1993 and located in Bozeman, MT. The product range include innovative laser diode driver components designed to precisely operate low-power laser diodes and low cost thermoelectric temperature controllers. The devices are used in a wide range of applications, including environmental sensors, spectroscopy, biomedical devices, fiberoptic systems, DFB & tunable laser diode systems, EDFAs, semiconductor manufacturing tools, military electronics and many more electro-optical instruments.
Related links of the manufacturer

Customers also viewed

EP Series Discrete Mode Laser Diodes for Gas Sensing
657-2350 nm; Output Power 2-14 mW; Threshold Current 12-35 mA; Slope Efficiency 0.04-0.21 W/A; Tuning Coefficient 0.003-0.02 nm/mA; SMSR 40 dB; Package Type 14-pin Butterfly, DX-1 Custom, TO-39 Eblana’s EP series of discrete mode (DM) laser diodes utilize the inherent low linewidth performance of the DM platform in comparison to typical DFB lasers, ideal for trace gas sensing and environmental monitoring in the near-infrared (NIR) and mid-infrared (NIR, MIR) wavelength domain. EP series laser diodes are available in a variety of industry standard and custom package types, as well as with wavelengths ranging from 657 to 2350 nm, suitable for sensing a broad range of chemical elements and substances: Calcium (Ca): 657 nm Oxygen (O2): 760 nm Rubidium (Rb): 780 nm Ytterbium (Yb): 1064 nm Hydrogen Fluoride (HF): 1278 nm Moisture (H2O): 1342 nm, 1392.5 nm, 1854 nm Ammonia (NH3), Acetylene (C2H2): 1512 nm Carbon Dioxide(CO2), Carbon Monoxide (CO), Hydrogen Sulfide (H2S): 1578 nm Methane (CH4): 1654 nm Hydrocarbon Compounds like Propane or Butane (CxHx): 1692 nm Hydrochloric Acid (HCl): 1742 nm Carbon Dioxide(CO2): 2004 nm, 2051 nm, 2051 nm High-power Nitrous Oxide (N2O): 2108 nm Carbon Monoxide (CO): 2327 nm Eblana can also realize DM laser diodes for any custom wavelength requirements with a proven track record of success – please contact the AMS Technologies’ laser diode experts who are committed to ensuring that our customers realize the perfect gas sensing solution to meet their technical and commercial needs – every time. Laser-based gas sensing applications require excellent tuning characteristics. Eblana’s discrete mode lasers feature mode-hop free tuning over a minimum of 2 nm. Utilizing a standard Fabry-Perot ridge waveguide process to ensure high reliability and consistency, Eblana’s discrete mode (DM) technology achieves excellent side mode suppression ratio (SMSR) and a narrow linewidth below 2 MHz. Wavelength-selective features are etched using surface-level lithography to create single mode (SM) lasers, and a multiple quantum-well epitaxial structure is grown by MOCVD or MBE. Compared with traditional DFB approaches, Eblana’s discrete mode technology is regrowth-free and the wavelength selection material-agnostic. Key Features: Excellent Spectral Purity Most Devices Tunable Over Multiple Absorption Lines Mode-hop-free Performance Threshold Current: 12 mA to 35 mA Slope Efficiency: 0.04 W/A to 0.21 W/A Output Power: 2 mW to 14 mW Tuning Coefficient: 0.003 nm/mA to 0.02 nm/mA Side Mode Suppression Ratio (SMSR): 40 dB Operating Temperature Range: -20 to +65 °C Package Types: 14-pin Butterfly, DX-1 Custom Package, TO-39 Applications: Trace Gas Sensing; Environmental Monitoring; High-sensitivity Detection; HF Measurement in Harsh Environments; High-temperature H2O Sensing; Wavelength Modulation Spectroscopy; Cavity Ringdown Spectroscopy ;Telecom; Fiber Coupling
Product number: SW11637
Manufacturer: