Hangzhou Brandnew Technology Co., Ltd. is one of China's leading manufacturers and premier suppliers of advanced 20w 640nm 200um cw fiber laser multi pins diode. Operating a state-of-the-art factory, we specialize in the entire production spectrum—from high-performance chips, TO/F/C Mounts, COS, and MCC bars, to robust stacks and advanced fiber-coupled solutions.
80W 640nm CW Fiber Coupled Multi Pins Laser Diode
Features:
- 20W CW output at 640nm with ±10nm wavelength tolerance.
- 1m fiber length convenient and flexible beam transmission.
- Spectrum width <10nm to guarantee high spectral purity.
Applications:
- Used as excitation light source for biomedical fluorescence imaging analysis.
- Applied in medical photodynamic therapy equipment for targeted lesion treatment.
- Deployed in industrial visual inspection and high-precision machine vision systems.
- Suitable for scientific laboratory spectroscopy and optical research setups.

This 640nm 20W CW fiber coupled diode laser is fitted with 200μm SMA905 fiber, delivering stable red continuous laser output with narrow spectrum. The integrated fiber coupling design simplifies beam delivery and optical alignment. It maintains reliable electro-optical performance under rated conditions, widely used for biomedical excitation, photodynamic therapy, machine vision inspection and scientific optical research.
Data Sheet
Item No: FC640DZ80
| Optical | |
| Center Wavelength | 640nm |
| Wavelength Tolerance | ±10nm |
| Output Power | 20W |
| Working Mode | CW |
| FWHM | <10nm |
| Fiber | |
| Fiber Core | 200um |
| Fiber Numerical Aperture | 0.22NA |
| Fiber Length | 1m |
| Fiber Connector | SMA905 |
| Electrical | |
| Operating Current Iop | 2.5A |
| Threshold Current Ith | 1A |
| Operating Voltage Vop | 30V |
| Thermal | |
| Test Temperature | 25℃ |
| Storage Temperature | -30~70℃ |
Drawing:

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