• High-Intensity 90 W Output
• VBG Wavelength Stabilization (± 1 nm)
• Narrow Spectral Width (0.5 nm)
• Integrated 30 dB Feedback Protection
• SMA905 or Fiber Termination
• Rugged Industrial Package
• Solid-state laser pumping (Nd:YAG, Nd:YVO4)
• Selective Heat Treatment
• Material processing
• Kilowatt-class Fiber Laser Seeding
• Scientific and defense research
• Custom OEM integration
| SPECIFICATIONS ( 25°C ) | SYMBOL | UNIT | K878BA5RN-90.00W | |||
|---|---|---|---|---|---|---|
| MINIMUM | TYPICAL | MAXIMUM | ||||
| OPTICAL DATA(1) | CW Output Power | Po | W | 90 | — | — |
| Center Wavelength | λc | nm | 878.6 ± 1 | |||
| Spectral Width (FWHM) | Δλ | nm | — | 0.5 | — | |
| Wavelength Shift / Temp | Δλ/ΔT | nm/°C | — | 0.03 | — | |
| ELECTRICAL DATA | Electrical-to-Optical Efficiency | PE | % | — | 50 | — |
| Threshold Current | Ith | A | — | 1.5 | — | |
| Operating Current | Iop | A | — | 11.5 | 14 | |
| Operating Voltage | Vop | V | — | 14.6 | 17 | |
| Slope Efficiency | η | W/A | — | 9 | — | |
| FIBER DATA | Core Diameter | Dcore | μm | 200 / 400 | ||
| Cladding Diameter | Dclad | μm | 220 / 440 | |||
| Numeric Aperture | NA | — | — | 0.22 | — | |
| Fiber Length | Lf | m | — | 1.5 | — | |
| Minimum Bending Radius | — | mm | 88 / 176 | — | — | |
| Fiber Termination | SMA905 or Fiber | |||||
| FEEDBACK ISOLATION | Wavelength Range | — | nm | 1020 ~ 1200 | ||
| Isolation | — | dB | — | 30 | — | |
| OTHERS | ESD | Vesd | V | — | — | 500 |
| Storage Temperature(2) | Tst | °C | -20 | — | 70 | |
| Operating Case Temp(3) | Top | °C | 20 | — | 30 | |
| 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.
