The price of a 940nm laser diode in the UK typically ranges from around £5 for low-power diodes to several hundred pounds for high-power or fiber-coupled modules.

Low-Power 940nm Laser Diodes

Standard low-power 940nm diodes, such as Osram Opto PLPVQ 940A in a 2-pin SMT package, are available from UK suppliers like RS Components and Farnell. These devices are generally priced in the £5–£20 range depending on the manufacturer and package type . They are suitable for applications like 3D sensing, facial recognition, or basic infrared illumination.

High-Power and Fiber-Coupled Modules

For higher power applications, including fiber-coupled 940nm laser diodes, prices increase significantly. Modules with output powers from 200 mW up to several watts can cost anywhere from £100 to over £500, depending on features such as integrated cooling, pilot lasers, or monitoring photodiodes . Advanced modules intended for low-volume or specialized applications may have even higher costs, sometimes doubling the price compared to basic fiber-coupled modules.

Factors Affecting Price

• Output power: Higher wattage diodes are more expensive.
• Package type: SMT, TO-can, or fiber-coupled modules vary in cost.
• Manufacturer: Prices differ significantly between brands like Osram, Wurth Elektronik, or AeroDIODE.
• Additional features: Integrated cooling, monitoring photodiodes, or turnkey driver solutions increase the price .

Summary

• Low-power diodes: £5–£20
• Medium-power modules: £50–£200
• High-power/fiber-coupled modules: £200–£500+ For precise pricing, it is recommended to check suppliers like Farnell UK, RS Components, or AeroDIODE, as stock availability and manufacturer options can affect the final cost .