Xian-Ge Wang, Xiaolin Liang, Kai Jiao, Shengchuang Bai, Xunsi Wang, Rongping Wang
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引用次数: 0
Abstract
We have developed an effective one-step extrusion method to prepare a nodeless chalcogenide hollow-core anti-resonance fiber, characterized by excellent symmetry and less requirements for drawing pressure in achieving the desired wall thickness. The resulting fiber exhibits excellent uniformity, with an ultra-large effective mode area of 21970 µm2 and a low overlap factor of η = 0.03%. It can withstand an input power exceeding 10 W at 4.5 µm and maintain a stable output power of 1.2 W at an input power of 5.25 W, all while preserving a high beam quality with an M2 value of 1.09. The output single-mode laser remains highly stable when the translation offset of the laser coupling into the fiber is less than 100 µm. The chalcogenide hollow-core fibers with watt-level mid-infrared laser delivery power and near-diffraction-limited beam quality can be used for practical applications in industry, medicine, and defense.
期刊介绍:
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.