The price of a 940nm laser diode ranges from around $50 for low-power single-mode diodes up to $1,500 or more for high-power multimode modules.

Price Overview

• Low-power single-mode diodes (5–200 mW): These are typically packaged in TO-style modules and are priced between $50 and $200, depending on the manufacturer and exact specifications .
• Medium-power diodes (up to 30 W): Multimode 940nm diodes with fiber pigtails and compact packages are available for $500 to $1,500, often including options for drivers, heat sinks, and collimating lenses .
• High-power turnkey modules (10–200 W): Fully integrated systems with drivers, fiber coupling, and software control can cost significantly more, with prices varying based on power output, fiber type, and additional features .

Factors Affecting Price

1. Power Output: Higher wattage diodes are more expensive due to increased manufacturing complexity and cooling requirements.
2. Mode Type: Single-mode diodes are generally less expensive than high-power multimode diodes with fiber coupling.
3. Turnkey Integration: Modules that include drivers, temperature control, and software interfaces cost more than standalone diodes.
4. Fiber Options: Polarization-maintaining (PM) fibers or Fiber Bragg Grating (FBG) options for narrow emission spectra add to the cost .
5. Supplier and Region: Prices vary depending on the manufacturer, distributor, and shipping location, with some suppliers offering bulk or wholesale pricing .

Summary

For a basic 940nm single-mode diode, expect to pay $50–$200, while high-power multimode or turnkey modules can range from $500 to over $1,500, depending on configuration and features. For precise pricing, it is recommended to contact suppliers directly, as options like fiber type, driver integration, and power output significantly influence the final cost .