Ames Osram develops blue CoS packaged laser diode, which can be embedded into small size medical surgical equipment

Recently, AMS OSRAM announced that Convergent Photonics, a laser module manufacturer based in Turin, Italy, will use the new 445 nm blue laser diode packaged in the form of AMS OSRAM CoS to produce new, efficient and extremely compact multi transmitter laser modules. It is reported that these blue laser diodes are very suitable for high power industrial applications and medium power medical applications.

CoS (Chip on submiount) packaged laser diodes provide a more compact small size alternative to the conventional TO-CAN can packaging. Multiple CoS lasers can be combined in one module, saving space.

(Image source: Convergent Photonics)

The micro optical lens is installed near the side of the laser, which enables a single laser to be coupled into the fiber, thus controlling the shape and size of the beam more accurately. This compact modular design can also achieve better heat conduction management than systems based on TO format packaged lasers.

Osram provides two versions of blue CoS laser with power output of 5W, which can be installed on the directly bonded copper (DBC) substrate with high thermal efficiency. One of them is 1.0mm × 1．3mm × 0.2mm PLPCOS 450D, another version is 4.0mm × 3．0mm × 0.3mm PLPCOS 450E. Combined 100 μ M optical fiber, its optical power output can reach 100W, and the converged photon multi emitter laser module can further amplify the power, providing a very compact solution for welding equipment.

From the perspective of medical application scenarios, the same technology can integrate multiple CoS packaged blue lasers of Ames Osram with control electronic devices, thus providing a very compact independent light source. In addition, Convergent Photonics combines it with a second laser of different wavelengths to provide a series of mixed multi wavelength sources, all packaged in a single compact module for advanced surgical equipment.

"The traditional blue laser diode packaging style limits the scope of integrating blue light into a compact and efficient laser module combination. With the continuous improvement of Osram's blue CoS laser development, we now have a scalable building module that can be scaled up in very compact components to support high-power applications."

Robert Paoletti, director of Convergent Photonics diode Fab, said: "Now, we can match the blue laser emission module with the excellent size, weight and power characteristics of existing products in the visible and infrared spectra."

Source: OFweek Laser Network