940nm 20W Semiconductor Laser Diode
Product Description
Product Detail
1. Summary of 940nm 20W Semiconductor Laser diode
The 940nm 20W Semiconductor Laser diode has been developed for pumping, medical or materials processing applications. This diode laser has been designed to delivery very high output power for the fiber laser market and for direct system manufacturers to with a more compact pump configuration. Various output powers are available. Custom wavelengths and configurations available upon request.
2. Introduction of 940nm 20W Semiconductor Laser diode
The 940nm 20W Semiconductor Laser diode has been developed for pumping, medical or materials processing applications. This diode laser has been designed to delivery very high output power for the fiber laser market and for direct system manufacturers to with a more compact pump configuration. Various output powers are available. Custom wavelengths and configurations available upon request.
3. Features of 940nm 20W Semiconductor Laser diode
940nm wavelength;
20W output power;
105µm fiber core diameter;
0.22NA.
4. Application of 940nm 20W Semiconductor Laser diode
Laser pumping;
Medical use;
Material processing.
5. Electro-Optical Characteristics(T=25℃) of 940nm 20W Semiconductor Laser diode
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
| Operating output power | Pout | 20.0 | - | - | W |
| Range of available wavelength | λ | 930 | 940 | 950 | nm |
| Spectral width @ FWHM | Δλ | - | 3.5 | 7.0 | nm |
| Threshold current | Ith | - | 0.5 | 0.9 | A |
| Operating current at Pout | IOP | - | 12.0 | 13.0 | A |
| Operating voltage at Pout | VOP | - | 3.65 | - | V |
| Power conversion efficiency | - | - | 45 | - | % |
| Wavelength temperature coefficient | Δλ/ΔT | - | 0.3 | - | nm/℃ |
| Slope efficiency | η | - | 2.5 | - | W/A |
| Fiber bend radius | r | 37.5 | - | - | mm |
| Fiber core diameter | DCOR | - | 105/125 | - | µm/µm |
| Fiber buffer diameter | DBUF | - | 250 | - | µm |
| Fiber numerical aperture | NA | - | 0.22 | - | - |
| Beam numerical aperture(95% power) | Lf | - | 0.17 | - | NA |
| Fiber length | Lf | - | 1.5 | - | m |
| Connector type | - | Null or SMA905 | - | ||
6. Package drawing&PIN-OUT Definition(Unit:mm) of 940nm 20W Semiconductor Laser diode
7. Deliver,Shipping And Serving of 940nm 20W Semiconductor Laser diode
All products have been tested before shipping out;
All products have 1-3 years warranty.(After the quality guarantee period began to charge appropriate maintenance service fee.)
We appreciate your business and offer an instant 7 days return policy. (7 days after receiving the items);
If the items you purchase from our store are not of perfected quality, that is they don‘t work electronically to manufacturers specifications, simply return them to us for replacement or refund;
If the items are defective, please notify us within 3 days of delivery;
Any items must be returned in their original condition to qualify for a refund or replacement;
The buyer is responsible for all the shipping cost incurred.
8. FAQ
A: We have 793nm 808nm 915nm 975nm laser diode.
Q: What is the requirement for the output power?A: Box optronics can customize according to your requirements.