• Superior 52% Electrical Efficiency
• Thermal Management Ready
• High Stability Output
• Integrated 30 dB Feedback Protection
• Ultra-High Brightness 105 µm Core
• Rugged Industrial Package
• Fiber laser pumping
• Solid-state laser Pumping
• Material processing
• Laser plastic welding
• Scientific and defense research
• Custom OEM integration
| SPECIFICATIONS ( 25°C ) | SYMBOL | UNIT | K940FAHHN-20.00W | |||
|---|---|---|---|---|---|---|
| MINIMUM | TYPICAL | MAXIMUM | ||||
| OPTICAL DATA(1) | CW Output Power | Po | W | 20 | — | — |
| Center Wavelength | λc | nm | 940 ± 10 | |||
| Spectral Width (FWHM) | Δλ | nm | — | 3 | 6 | |
| Wavelength Shift / Temp | Δλ/ΔT | nm/°C | — | 0.3 | — | |
| Wavelength Shift / Current | Δλ/ΔA | nm/A | — | 0.6 | — | |
| ELECTRICAL DATA | Electrical-to-Optical Efficiency | PE | % | — | 52 | — |
| Threshold Current | Ith | A | — | 1 | — | |
| Operating Current | Iop | A | — | 12 | 13 | |
| Operating Voltage | Vop | V | — | — | 3.8 | |
| FIBER DATA | Core Diameter | Dcore | μm | — | 105 | — |
| Cladding Diameter | Dclad | μm | — | 125 | — | |
| Numeric Aperture | NA | — | — | 0.22 | — | |
| Fiber Length | Lf | m | — | 1 | — | |
| Fiber Termination | NA | |||||
| FEEDBACK ISOLATION | Wavelength Range | — | nm | 1400 ~ 1600 | ||
| Isolation | — | dB | — | 30 | — | |
| OTHERS | ESD | Vesd | V | — | — | 500 |
| Storage Temperature(2) | Tst | °C | -20 | — | 70 | |
| Operating Case Temp(3) | Top | °C | 15 | — | 35 | |
| Relative Humidity | RH | % | 15 | — | 75 | |
Pair your diode with the right driver and temperature controller for stable, reliable performance.
Precise, low-noise current control for optimal diode performance and extended lifetime.
View Drivers
Active thermal management for wavelength stability and consistent output power.
View TEC ControllersWe offer custom laser diodes according to your needs, either high-power or low-power versions, fiber-coupled or free-space, specific wavelengths, wavelength-stabilized options, and single or multi-emitter diodes. To discuss your custom laser diode needs, you can contact us by sending an email or using the contact form.
