Researchers have designed a six-hole micro-structure antiresonant air-core fiber (AR-HCF) with a large core diameter of 78 μm. The researchers say it is the first time that 2.79 μm high energy pulsed laser has been transmitted with good efficiency at room temperature.

Traditional laser medical instruments often face challenges such as complex structures and low efficiency. The AR-HCF addresses these issues with its simple design, high transmission efficiency, and flexibility.

The team designed a simple structure with high coupling transmission efficiency, a large damage threshold, and flexible transmission AR-HCF to replace the light guide arm in transmitting laser energy. With an average coupling transmission efficiency of 77.3 percent and a maximum of 85 percent, the fiber optic cable system demonstrates impressive performance.

Moreover, the AR-HCF boasts a large damage threshold, making it suitable for high-energy applications. This innovation allows for the efficient transmission of high-energy pulsed lasers, particularly in the mid-infrared range, which is crucial for medical procedures. (Image Credit: Huang Lei)

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Topics:
Fiber Optics Medical

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    This article first appeared in the December, 2024 issue of Medical Design Briefs Magazine (Vol. 14 No. 12).

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