How much does a 100-watt laser diode cost

A 100-watt laser diode typically costs between $200 and $600, depending on specifications and supplier.

Price Range and Factors

The cost of a 100W laser diode varies based on wavelength, spectral properties, package type, and cooling requirements. High-volume consumer wavelengths, such as 445nm blue or 650nm red, are generally more affordable, while specialty wavelengths or narrow-linewidth diodes can be more expensive . On marketplaces like eBay and AliExpress, 100W laser diodes are commonly listed in the $200–$600 range, with some variations depending on shipping, brand, and included accessories .

Additional Considerations

• Cooling and Mounting: High-power diodes generate significant heat, so active cooling (water-cooled heatsinks or high-speed fans) is required, which can add to the overall cost .
• Drivers and Power Supply: A 100W diode typically requires a driver capable of supplying up to 10A, which is an additional expense.
• Application Requirements: Industrial or semi-professional use, such as metal engraving or cutting plastics, may justify higher-quality diodes with better beam quality or longer lifespan .

Summary

For most hobbyist or semi-professional applications, you can expect to pay around $200–$600 for a 100W laser diode module, with the final price influenced by wavelength, cooling setup, and supplier. For industrial-grade or specialty diodes, prices can be higher, potentially exceeding $1,000 depending on specifications .