In an optical system, reflections and backscattering of light often cause serious problems ranging from noise in the photodetectors to instabilities in the light sources. 35, Issue 5, 706 (2010).This is continuation from the previous tutorial - magneto-optic Kerr effect. et al., “All-fiber optical isolator based on Faraday rotation in highly terbium-doped fiber”, Optics Letters, Vol. “Compact all-fiber optical Faraday components using 65-wt%-terbium-doped fiber with a record Verdet constant of -32 rad/(Tm)”, Optics Express, Vol. “Fiber Faraday circulator or isolator”, Optics Letters, Vol. “Review of Faraday isolators for kilowatt average power lasers,” IEEE Journal of Quantum Electronics, Vol. ![]() “Slab-based Faraday isolators and Faraday mirrors for 10-kW average laser power”, Applied Optics, Vol. Ultimately, the HEL system will be deployed in a submarine or other Navy platform advancing future Navy warfighting capabilities.įiber optical isolators with high power handling capability can be used in various HEL laser systems for DoD and industrial applications such as welding, cutting, soldering, marking, cleaning, and material processing. Identify the final kW class fiber isolator product and describe how the company will support transition to Phase III. PHASE III DUAL USE APPLICATIONS: Transition of kW class Fiber optic isolator to Navy use for the purpose of HEL technology integration at 1 to 2 µm MW class laser. Any test data collected at Navy facilities shall be Government use only. Optimize the design and development of the Phase I kW class optical isolator to a prototype compact and robust fiber optical isolators for kW class fiber lasers.ĭeliver a prototype kW class Fiber optic isolator to a Navy lab to evaluate the performance of the system in terms of its optical isolation > 40 dB for HEL system as described in the Phase II SOW. PHASE II: Develop and deliver a prototype based on the results of Phase I, supporting the parameters listed in the description. The Phase I Option, if exercised, will include the initial design specifications and capabilities description to build a prototype solution in Phase II. Demonstrate the feasibility of the concept to meet the parameters listed in the Description through modeling, simulation, and analysis. The isolator concepts will be designed to meet the performance capabilities identified in the Description section. Demonstrate the power handling scalability of the new isolator material and device. PHASE I: Develop a concept that uses the Faraday material, magnet material, and polarizers for a best-performance optical isolator construction that can be used for kW class fiber lasers. Under the Phase II Option II, if exercised, a prototype kW class Fiber optic isolator will be delivered to a Navy lab to evaluate the performance of the system in terms of its optical isolation > 40 dB for HEL system.
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