By nLIGHT
nLIGHT's Ytterbium doped fibers have a fused silica cladding and a core based on aluminosilicate glass. The optimal length of the fiber depends on the application and ideally should be determined based on simulations taking the exact design into account. An initial estimate can be obtained when assuming a total absorption of 13 dB for the design of a fiber amplifier, and 20 dB for the design of a fiber laser. An intrinsic feature of Ytterbium doped fibers is the strong wavelength dependent absorption and emission cross section in the vicinity of 976 nm. For this reason the absorption at 976 nm will sensitively depend on the emission wavelength and spectral width of the used pump diodes. As a general rule of thumb, we recommend to multiply the specified absorption at 920 nm by a factor of about 2.5 in order to obtain an estimate for the absorption at 976 nm. We currently specify the core background loss / intrinsic core loss at 1200 nm for all background sensitive fibers to be below 15 dB/km and below 25 dB/km for all non-background sensitive fibers. The emission cross section is independent of the polarization axis. Depending on the fiber type, we recommend the following bending diameters: - Ybxxx-10/125DC(-PM): Min. Coiling Diameter for Good LP01 Transmission 5 cm; Mechanically Safe Coiling Diameter 3.75 cm - Ybxxx-12/125DC(-PM): Min. Coiling Diameter for Good LP01 Transmission 4 cm; Mechanically Safe Coiling Diameter 3.75 cm - Ybxxx-20/125DC(-PM): Min. Coiling Diameter for Good LP01 Transmission 9 cm; Mechanically Safe Coiling Diameter 3.75 cm - Ybxxx-20/400DC(-PM): Min. Coiling Diameter for Good LP01 Transmission 12 cm; Mechanically Safe Coiling Diameter 12 cm - Ybxxx-25/250DC(-PM): Min. Coiling Diameter for Good LP01 Transmission 8 cm; Mechanically Safe Coiling Diameter 7.5 cm - Ybxxx-30/250DC(-PM): Min. Coiling Diameter for Good LP01 Transmission 9 cm; Mechanically Safe Coiling Diameter 7.5 cm Please note, that in practice the optimal bending diameter to obtain best beam quality will also depend on the light launching conditions. In general, we recommend the heat sink to which the fiber is attached to should be air-cooled, liquid-cooled, or TEC cooled. The heat sink preferably has a groove or grooves for the fiber to reduce the thermal resistance from the fiber to the heat sink. Also splice points should be packaged and thermally managed. The thermal resistance from fiber to heat sink can be further reduced preferably by potting the fiber, but also a soft polymer or a heat paste (customers have also been using UV curable silicone) can be used between the fiber and the heat sink. The maximum operating temperature is +120˚C under non-condensing conditions.
70 kW-Class CBC Laser and Effector | Flexibility for the Fight The first product offering in the HADES family of CBC High Energy Lasers (HEL), nLIGHT's 70kW-class neutralizes drones and other advanced threats at extended range with exceptional speed and efficiency. By leveraging nLIGHT's industry-leading and patented technology in coherent beam combination (CBC), high energy beam directors, tracking systems, and advanced atmospheric correction, nLIGHT's CBC laser and effector brings an unmatched combination of lethality, SWaP, and agility to the fight - ensuring superior protection wherever the mission demands. High Lethality Patented coherent beam combination delivers industry-leading irradiance on distant targets despite challenging atmospheric conditions, allowing for very short dwell times to neutralize swarm threats. With its compact, lightweight, and energy efficient architecture, HADES supports a broad range of air, ground, sea, and space domain platforms. Ultra-low jitter point-and-track for enhanced target discrimination and laser weapon system effectiveness. To maximize uptime, HADES is designed to be operated and maintained in the field by warfighters.
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High Beam Quality for Fast Kills at Distance High Beam Quality Low SWaP Field-proven production amplifiers enable full power operation…for every shot. nLIGHT's 10kW-class DBC High Energy Laser combines the industry's leading and field proven amplifiers with a proprietary dichroic beam combination (DBC) method to produce excellent beam quality for shortest kill time at range. High Beam Quality Utilizing proprietary DBC technology, superior beam quality is achieved enabling engagement at longer range with faster kills. Self-Protecting Amplifiers Integrated systems protect amplifiers against loss of seed and linewidth broadening. Self-Protecting Reliable Precision Tracking nLIGHT's 30kW-class HEL combines the industry's leading, field-proven amplifier technology with proprietary beam combination to produce superior beam quality for maximum lethality at range. Proprietary Spectral Beam Combination (SBC) technology produces superior beam quality enabling engagement at longer range with faster kills. Small and lightweight to meet the needs for integration into a broad range of platforms. Self-Protecting Amplifiers
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High Beam Quality Low SWaP Field-proven production amplifiers enable full power operation…for every shot. nLIGHT's 10kW-class DBC High Energy Laser combines the industry's leading and field proven amplifiers with a proprietary dichroic beam combination (DBC) method to produce excellent beam quality for shortest kill time at range. High Beam Quality Utilizing proprietary DBC technology, superior beam quality is achieved enabling engagement at longer range with faster kills. Self-Protecting Amplifiers Integrated systems protect amplifiers against loss of seed and linewidth broadening. Self-Protecting Reliable Precision Tracking nLIGHT's 30kW-class HEL combines the industry's leading, field-proven amplifier technology with proprietary beam combination to produce superior beam quality for maximum lethality at range. Proprietary Spectral Beam Combination (SBC) technology produces superior beam quality enabling engagement at longer range with faster kills. Small and lightweight to meet the needs for integration into a broad range of platforms. Self-Protecting Amplifiers
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Dual-Channel Low SWaP Package nLIGHT's portfolio of commercially-developed, military-qualified Narrow Linewidth Amplifiers serves a broad range of applications across the aerospace & defense and industrial markets. The NLA-N2 incorporates two individual 3-kilowatt amplifiers integrated into one package to produce a very powerful solution at industry-leading Size, Weight, and Power (SWaP). Optimized for either coherent or spectral beam combination, our 5th generation amplifier delivers consistent unit-to-unit performance with high reliability enabling our global customers to meet their demanding deployment schedules and performance requirements with confidence. Integrated systems protect the amplifier against loss of seed and linewidth broadening. nLIGHT delivers hundreds of TRL-7 amplifiers globally with very high reliability. Low SWaP Small and lightweight to meet the needs for integration into a broad range of platforms. Fiber Termination - 400um diameter coreless endcap - 3mm diameter ferruled endcap - QBH
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