Accelight Technologies, Inc.

Accelight Technologies, Inc. is a private, US-based company that designs and manufactures fiber optic passive and active devices and modules. It was founded in 1999, though some sources indicate its current iteration as a global provider of optical connectivity solutions dates to 2017. The company's headquarters are located in Pleasanton, California, with R&D centers in Wuhan Optics Valley and Silicon Valley, and production facilities in China and Thailand. Accelight Technologies has an estimated annual revenue between $10 million and $25 million and employs between 251 and 500 people.

Accelight specializes in high-speed optical connectivity solutions for AI infrastructure, hyperscale data centers, and telecommunications networks. Its product portfolio includes a range of optical transceivers supporting data rates from 100G to 1.6T, active optical cables (AOC), passive optical modules, optical amplifiers (EDFA), and fiber optic cable assemblies. These products are used in applications such as 5G wireless, fiber-to-the-home (FTTH), and CATV fiber optical networks.

In terms of patent litigation, Accelight Technologies, Inc. currently holds a defensive posture. It has been involved in one tracked case as a defendant and zero as a plaintiff. The sole case, Applied Optoelectronics, Inc. v. Accelight Technologies, Inc., was filed in the U.S. District Court for the Northern District of California on December 13, 2024. Applied Optoelectronics (AOI) alleges that Accelight Technologies infringes several of its optical transceiver patents, specifically citing products like Accelight's 100G QSFP28 LR4 and 400G QSFP-DD series. AOI is seeking monetary damages and a permanent injunction. Accelight Technologies has, in turn, initiated an Inter Partes Review (IPR) challenging one of Applied Optoelectronics' patents at the Patent Trial and Appeal Board.