Affiliation:
1. Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province
2. Ningbo Institute of Oceanography
3. Engineering Research Center for Advanced Infrared Photoelectric Materials and Devices of Zhejiang Province
Abstract
A large mode-area chalcogenide all-solid anti-resonant fiber has been designed and successfully prepared for the first time. The numerical results show that the high-order mode extinction ratio of the designed fiber can reach 6000, and the maximum mode-area is 1500 um2. The fiber possesses a calculated low bending loss of less than 10−2 dB/m as the bending radius is larger than 15 cm. In addition, there is a low normal dispersion of -3 ps/nm/km at 5 μm, which is beneficial for the transmission of high power mid-infrared laser. Finally, a completely structured all-solid fiber was prepared by the precision drilling and two-stage rod-in-tube methods. The fabricated fibers transmit in the mid-infrared spectral range from 4.5 to 7.5 μm with the lowest loss of 7 dB/m @ 4.8 μm. Modeling suggests that the theoretical loss of the optimized structure is consistent with that of the prepared structure in the long wavelength band.
Funder
National Natural Science Foundation of China
Key Research and Development Program of Zhejiang Province
Fundamental Research Funds for the Provincial Universities of Zhejiang
Opening Project of Key Laboratory of Optoelectronic Detection Materials and Devices of Zhejiang Province
K. C. Wong Magna Fund at Ningbo University
Subject
Atomic and Molecular Physics, and Optics
Cited by
7 articles.
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