The HighLight FAP 60/810 provides 60 watts of output power at 810 nm, and is engineered for reliability, convenience and process uniformity in demanding, high-throughput industrial applications.

Coherent Inc., which develops and supplies laser-based solutions for commercial and scientific research, has introduced the HighLight FAP 60/810 system — a fiber-delivered, turnkey diode laser system that delivers 60 watts of output power at 810 nm. The HighLight FAP 60/810 is engineered for exceptional reliability, convenience, and superior process uniformity for demanding, high-throughput industrial applications, like FRIT welding of OLED displays and other thermal processing tasks.

Coherent emphasizes that the system offers high-power stability (power variations < ±1%) and a fast, jitter-free risetime (< 50 microsec). In addition, an optional four-lens imager enables variable magnification and a perfect, top hat irradiance profile at the work surface.

The HighLight FAP 60/810 uses a modular fiber-delivery system that minimizes downtime and thereby cost of ownership in industrial environments, or with semi-skilled labor. Specifically, the 15-meter delivery fiber is attached to the laser source via standard connectors. This means it can be exchanged quickly if it is damaged, and the system’s value is further enhanced by its use of an integrated monitor that immediately shuts down the diode if it detects back-reflected light, minimizing the risk of diode damage.

Also, Coherent states that HighLight FAP 60/810 offers proven reliability and long service life; the underlying fiber array package (FAP) technology uses a proprietary AAA^™ semiconductor material, with tens of thousands of FAP units in the field.

A typical thermal processing application for the HighLight FAP 60/810 is FRIT welding of OLED (organic light emitting diodes) screens for smart phones. These screens are created in large panels of a glass-OLED-glass sandwich in large panels, and the laser is used to fuse the front and rear glass plates together prior to device singulation. The top hat profile available from the HighLight FAP 60/810 is particularly valuable here because it eliminates the possibility of peripheral material damage.

Other typical applications include soldering and plastic welding.