Low Loss, High Average Power PM WDMs for Raman Fiber Lasers

ABSTRACT: We propose a new fiber WDM fabrication method for single mode high power fiber laser. Our new approach will enable kW operation for both single mode fiber WDM and PCF WDM. At the end of Phase I, a proof of concept experiment will be demonstrated. In phase II, we will target at delivery of a reliable prototypes for both step index fiber WDM and PCF WDM. BENEFIT: The WDM is a key component for high power fiber laser. It can be used in many applications, such as antireflection windows, space, aircraft, and satellite applications of LADAR systems, countermeasures, and communications. PolarOnyx will develop a series of products to meet various requirements for military deployments. Other commercial applications include Material processing. This includes (1) all types of metal processing such as welding, cutting, annealing, and drilling; (2)semiconductor and microelectronics manufacturing such as lithography, inspection, control, defect analysis and repair, and via drilling; (3) marking of all materials including plastic, metals, and silicon; (4) other materials processing such as rapid prototyping, desk top manufacturing, micromachining, photofinishing, embossed holograms, and grating manufacturing. Medical equipment and biomedical instrumentation. The high power amplifier/laser can be applied to ophthalmology, refractive surgery, photocoagulation, general surgery, therapeutic, imaging, and cosmetic applications. Biomedical instruments include those involved in cells or proteins, cytometry, and DNA sequencing; laser Raman spectroscopy, spectrofluorimetry, and ablation; and laser based microscopes.