News: Optoelectronics
17 June 2025
Coherent launches 18W 880nm single-emitter laser diode
Materials, networking and laser technology firm Coherent Corp of Saxonburg, PA, USA has launched the SES18-880A-190-10, a high-power 880nm single-emitter laser diode on sub mount, designed specifically for high-efficiency, high-reliability pumping of diode-pumped solid-state (DPSS) lasers.
Delivering 18W optical output power with over 62% conversion efficiency and 97% polarization extinction ratio, the SES18-880A-190-10 sets a new benchmark for DPSS pump lasers in terms of performance, reliability, and cost-effectiveness. With a 190µm emitter and one of the most competitive $/W ratios available in the 880nm class, this product is suitable for precision applications requiring excellent beam quality and scalable power.
“The DPSS laser market is evolving rapidly, with demand growing in micromachining, advanced packaging, and semiconductor processing,” says Dr Karlheinz Gulden, senior VP, Laser Components and Subsystems at Coherent. “This new diode allows customers to realize the full benefits of 880nm pumping—delivering lower quantum defects, reduced thermal lensing, and enhanced mode quality compared to traditional 808nm solutions.”
Built on the 6-inch GaAs wafer platform from Coherent, the SES18-880A-190-10 benefits from fully vertically integrated manufacturing, from epitaxial wafer growth to chip design and sub mount packaging. Its advanced chip architecture ensures consistent performance, high polarization purity, and robust thermal management, making it a standout option for end-pumped DPSS systems. Its wavelength range (870–876nm) and optimized front facet reflectivity are engineered for compatibility with volume Bragg grating (VBG) stabilization, offering precise wavelength control and alignment flexibility.
Variations of the product are available at 878nm, 885nm and 888nm to support different DPSS gain media. Coherent also offers fiber-coupled modules using the same chip technology, supporting a wide range of integration needs. These modules, including the FACTOR series, provide scalable, high-efficiency pumping for advanced laser systems.
The SES18-880A-190-10 is generally available.
