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可以关注一下DARPA的一个光纤激光相干合成项目,不知道有没有进一步的信息可以查出来:
Title: FLASH - Scaling Fiber Arrays at Near Perfect Beam Quality
Description: The goal of the FLASH program is to demonstrate a transportable, packaged laser system whose output is derived from coherently combining the outputs of an array of ultra-lightweight, flight-worthy high power fiber lasers. The packaged FLASH laser system will project a >30-kW-class beam with near perfect beam quality and very high electrical-to-optical efficiency. The size, weight, and power (SWaP) will be consistent with weight and volume densities needed to support the integration of laser weapons on a broad range of Military platforms. To accomplish these ends, FLASH will (1) greatly reduce the overall size and weight of packaged coherently-combinable high-power fiber laser amplifiers while greatly simplifying the demands they make on support systems such as cabling, cooling lines and support structures while increasing their efficiency and resistance to shock, vibration and acoustics and (2) fabricate an array of these ultralight fiber-laser amplifiers and integrate them with advanced battery power, thermal management and coherent-beam combination sub-systems into a transportable, fully packaged laser system.
FY 2014 Accomplishments:
- Demonstrated a benchtop array of 1.3 kW fiber-lasers combined to produce a >30 kW near-diffraction-limited output at >25% electrical-to-optical efficiency.
- Estimated the capability of a 21-element optical-phased array system to compensate for atmospheric turbulence under various atmospheric conditions.
- Demonstrated target-in-the-loop phase-locking on a stationary target at a 7 km distance.
FY 2015 Plans:
- Develop and test a packaged, flight-worthy, coherently-combinable, fiber laser amplifier with an output power, beam-quality, size and weight consistent with system integration on tactical aircraft.
- Develop a preliminary design for a >30 kW, transportable, packaged laser system including fiber lasers, thermal management, power systems, and beam combination.
FY 2016 Plans:
- Develop a critical design for a >30 kW transportable, packaged laser system.
- Fabricate and /or procure parts and hardware for the >30 kW, transportable, packaged laser system.
- Assemble and test key subsystems for the >30 kW, transportable, packaged laser system.
- Begin the integration of key subsystems for a >30 kW, transportable, packaged laser system.
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