Additional Resources
Whitepapers:
Blogs:
- “Laser Diode Bar Stress“
- “AR Coated Diode Bars for External Cavity Lasers“
- “Highly Efficient and Passively Cooled Next-Gen 275W Diode Laser“
Videos:
Laser diode arrays or laser diode bars have multiple single emitters, laid out side-by-side in a single substrate.
In a laser diode array (bar), the individual emitting areas (emitters) lie side by side, separated by the non-emitting areas. These sets of emitting/non-emitting regions form the so-called active layer. Laser diode bars can have as many as 100 emitters and are typically 1 cm long. The number, the width, and the spacing of the emitters are dependent on the manufacturer and the optical performance required from the bar. The relative value of the emitting areas in the active layer with respect to the bar width is the filling factor (FF). Typical filling factors are 30 – 90%. The center-to-center distance between two adjacent emitters is the emitter pitch. Z is the propagation axis of the laser radiation. The propagation axis Y is the fast axis (FA) and the X axis is the slow axis (SA), referring to the rate of divergence. Therefore, these axes comprise the beam angle (divergence) in the two planes, XZ and YZ. Output powers are available in the order of 10W – >300W per bar. Laser diodes bars are available as unmounted laser diode bars or mounted in conductively or actively cooled packages.
Laser diode arrays (bars) and multimode laser diode stacks are available in unmounted laser diode bars or mounted in conductively or actively cooled packages. Multiple bars can be stacked in the horizontal or vertical direction to increase the output power.
We offer diode laser arrays (bars) and stacks in wavelengths ranging from 760nm-1470nm in several free-space and fiber-coupled packages. Furthermore, these diode lasers are available in CW operation with up to 400W output power & QCW operation with up to 500W output power.
The JDL Series of unmounted laser diode bars are available in CW or QCW configurations in wavelength from 760nm – 1064nm. Various emitter configurations and cavity lengths are available offering up to 200W CW and 500W QCW output powers.
The JOLD-Stacks Series of high quality high power laser diode bar stacks. They are available with actively (microchannel) cooled or conductively cooled. And in wavelengths from 780nm – 1064nm.
The JOLD-Open Heatsinks Series are high quality high power laser diode bar products. They are available in a range of open heatsinks including the CS, CN, and LK package. And in wavelengths from 780nm – 1064nm.
The JOLD-FC Series of high quality high power fiber coupled laser diode bar products are offered in wavelengths from 780nm – 1064nm and 30W to 400W output power.
We offer standard wavelengths of 808 nm, 940 nm and 980 nm. The fiber core diameter of our diode lasers is 200 µm, 400 µm or 600 µm. On request, we will be happy to adapt the parameters to your individual requirements. You can also choose between pilot lasers, monitor diodes and integrated Peltier elements.