3.5W 940nm Fiber Coupled Laser Diode
For quality side, in order to assure the stable and long lifespan, we use laser chip from Jenoptik Germany.
For better cooling and heat dissipation, we use substrate/shell from Tecnisco Japan.
For high power efficiency, we use fiber from Nufern.
Application:
fiber laser pumping
direct material processing application
Fiber details:
Fiber Core:105um
Fiber Numerical Aperture:0.22NA
SMA905, FC and ST connector, for your choice
Drawing:
Data sheet:
Item No.: FC940DL35
| Optical | |
| Center Wavelength | 940nm |
| Output Power | 3-3.5W |
| Spectral Width FWHM | ≤6nm |
| Slope Efficiency | ≥0.95W/A |
| Fiber | |
| Fiber Core Diameter | 105um |
| Fiber Numerical Aperture | 0.22NA |
| Fiber Length | 1m |
| Fiber Connector | SMA905/FC/ST |
| Electrical | |
| Operating Current Iop | ~3.5A |
| Threshold Current Ith | ~0.2A |
| Operating Voltage Vop | <2.0V |
| Thermal | |
| Operating Temp. | 15~55℃ |
| Storage Temperature | -30-70℃ |
FAQ:
What is the beam profile output from the fiber?
Briefly, the beam output from the fiber is rounded with a certain divergence. The diameter of the beam is determined by fiber core, the divergence is relative with numerical aperture of fiber. The optical fibers are divided into single-mode and multi-mode, the numerical aperture (NA) is the sinusoidal value of maximum incident angle of total reflection a dimensionless number that characterizes the biggest range of angles over which the fiber can accept or emit light, it is usually between 0.15NA~0.22NA, 0.15NA is corresponding the half divergence of ~8°, and 0.22NA is corresponding the half divergence of ~12.5°.
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