Laser diodes are available in thousands of models across multiple manufacturers, covering wavelengths from UV to mid-infrared, with various output powers and package types.

Overview of Laser Diode Models

Laser diodes (LDs) are semiconductor devices that convert electrical energy into coherent light. They are widely used in telecommunications, medical devices, industrial processing, scientific research, and consumer electronics. Key types include:

• Fabry-Perot (FP) Laser Diodes: Standard multi-mode diodes for general illumination and sensing applications.
• Distributed Feedback (DFB) Laser Diodes: Single-mode diodes for precise wavelength applications like telecom and spectroscopy.
• Quantum Cascade Lasers (QCLs): Mid-infrared lasers for gas sensing and industrial applications.
• Interband Cascade Lasers (ICLs): Efficient mid-infrared sources for spectroscopy and sensing.
• Superluminescent Diodes (SLDs): Broad-spectrum sources for imaging and metrology.

Manufacturer Resources and Model Listings

1. Thorlabs: Offers laser diodes with center wavelengths from 375 nm to 2000 nm, output powers from 0.2 mW to 2 W, and various packages including TO-cans, butterfly, and chip-on-submount. QCLs and ICLs cover 3–11 µm wavelengths. Their Laser Diode Selection Guide provides a comprehensive list of all in-stock models with specifications .
2. ProPhotonix: Provides a wide range of laser diodes and modules, including FP, DFB, and DBR types. Their Laser Diode Selector allows filtering by wavelength, power, and package, with datasheets available for download .
3. GoPhotonics: Lists over 6,800 laser diodes from 103 manufacturers. Users can filter by wavelength, power, and type, including fiber-coupled, single-mode, multi-mode, and pulsed diodes. Datasheets and manufacturer contacts are available for each model .
4. Laser Diode Source (All Manufacturers): Maintains an open-index database where manufacturers upload datasheets, enabling comparison across brands and models for research or procurement purposes .
5. Metoree Manufacturer Directory: Provides a list of 47 top laser diode manufacturers, including Frankfurt Laser Company, OSI Laser Diode, and ProPhotonix, with product ranges covering laser diodes, superluminescent diodes, and laser modules .

Accessing Complete Model Lists

To obtain a full list of laser illumination diode models, users can:

• Visit Thorlabs Laser Diode Selection Guide for in-stock models and specifications.
• Use ProPhotonix Laser Diode Selector to filter by wavelength, power, and package.
• Explore GoPhotonics Product Search Tool for thousands of models from multiple manufacturers.
• Check the Laser Diode Source Open-Index for cross-manufacturer comparisons and datasheets. These resources collectively provide access to thousands of laser diode models, covering UV, visible, near-infrared, and mid-infrared ranges, with detailed specifications for technical selection and procurement.