nLIGHT, Inc. announced the award of additional options that more than double the previously-announced contract to produce a High Energy Laser (HEL) prototype as part of the second phase of the DoD's Office of the Under Secretary of Defense, Research & Engineering (OUSD (R&E)) High Energy Laser Scaling Initiative (HELSI). The original phase two award announced in May 2023 was for $86 million, and the exercise of the additional options announced brings the total value of the award to nLIGHT to $171 million. In the first phase of the HELSI program, nLIGHT utilized its coherent beam combined (CBC) architecture to demonstrate a 300 kilowatt (kW) class high energy laser with power and brightness that exceeded program objectives.

In the second phase of the HELSI program., which is expected to be executed over the next three years, nLIGHT will build upon its proven modular CBC architecture to scale laser source power to the megawatt-class with improved beam quality, size and weight. This laser will be delivered in a rugged conex-compatible form factor with optional space allocations to upgrade with precision long range tracking and adaptive optics technology.