30 May 2011

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

At last week’s LASER World of PHOTONICS trade show in Munich, Germany (22–26 May), laser manufacturer Modulight Inc of Tampere, Finland announced the expansion of its FiberLight product family with the addition of multi-chip red laser modules for industrial, display and medical applications.

The new products fill the gap between the butterfly-packaged single emitters and fiber-coupled laser arrays already in the FiberLight family. The laser modules can host up to four laser diodes, which are coupled to a single 200 micron-core fiber with a numerical aperture of NA=0.22 and terminated with a standard SMA-905 connector. A typical configuration includes a thermistor and a thermoelectric cooler (TEC) element for temperature control and a photodiode for power monitoring.

The following wavelengths and power levels are currently available as standard multi-chip laser module products:

• 635nm (1W, 3-chip; 1.5W 4-chip);
  
• 650nm (2W 3-chip; 3W 4-chip);
  
• 670nm (2.5W 3-chip; 3W 4-chip);
  
• 680nm (2.5W 3-chip; 3W 4-chip).

“The single-emitter approach is beneficial compared to an array approach in terms of better heat management, higher power per emitter, and better brightness,” comments Dr Tommi Hakulinen, product engineer responsible for Modulight’s fiber-coupled products. “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,” he adds.

Tags: Modulight Red laser modules

Visit: www.modulight.com