Modulight releases multi-chip red laser modules for industrial, display and medical applications

The laser modules can host up to 4 laser diodes which are coupled to a single 200 μm core fiber with NA=0.22 and terminated with a standard SMA-905 connector. A typical configuration includes a thermistor and a TEC-element for temperature control and a photodiode for power monitoring.

Single-emitter approach is beneficial compared to array approach in terms of better heat management, higher power per emitter, and better brightness. In addition, the laser diodes are wired in series leading to a low operation current, which is often beneficial from the system design point of view, comments Dr. Tommi Hakulinen, product engineer responsible for Modulight's fiber coupled products.

Wavelength (nm) Power (W) Power (W)
3-chip version 4-chip version
635 1 1.5
650 2 3
670 2.5 3
680 2.5 3