SAXONBURG, PA, September 25, 2025 (GLOBE NEWSWIRE) – Coherent Corp. (NYSE: COHR), aglobal leader in photonics, today announced the sampling of its latest high-power 400 mWcontinuous-wave (CW) lasers, designed to meet the demanding requirements of next-generation co-packaged optics (CPO) and silicon photonics applications.

Delivering stable output power above 400 mW at 55°C, with spectral linewidths below 200 kHz andrelative intensity noise (RIN) below -145 dB/Hz, these 1311 nm lasers combine power, precision, andlow noise in a compact chip-on-carrier format. Built on Coherent’s proven Buried-HeterostructureDistributed-Feedback laser (BH DFB) laser platform, they exemplify the company’s expertise indeveloping production-worthy devices at performance levels that few in the industry have achieved.

“Our new 400 mW CW lasers enable breakthrough performance in silicon photonics and co-packaged optics,” said Kou-Wei Wang, VP and GM of Photonic Devices. “By offering stable highoutput power and exceptionally low noise, we are solving one of the toughest challenges in opticalinterconnects. Looking ahead, our upcoming 6-inch InP fab in Sherman, Texas, will expandproduction capacity more than a factor of 5, ensuring we meet the accelerating demand for InPlasers worldwide.”

The new 400 mW CW lasers join Coherent’s broad portfolio of high-performance photonic devices,giving customers a range of options to meet diverse design requirements. Engineering samples areavailable now to select customers, with volume production and general availability expected in Q32026.

Visit Coherent at ECOC 2025, Booth C3124, to learn more about the new 400 mW CW lasers and thecompany’s complete portfolio of photonic solutions.