Modal characteristics and leakage loss of hollow-core photonic-bandgap fibers based on a square lattice

作者：Zhang Hu^*; Wang Qiu-Guo; Yang Bo-Jun; Yu Li

来源：Acta Physica Sinica, 2008, 57(9): 5722-5728.

DOI：10.7498/aps.57.5722

• hollow-core photonic bandgap fibers
• full-vector finite element method
• square lattice
• leakage loss

In this paper the modal characteristics and leakage loss of hollow-core photonic bandgap fibers based on a square lattice with rounded square air holes was investigated by using a full-vector finite element method. It was found that hollow-core photonic bandgap fibers with air core arranged in square lattice can operate in the broad bandgap single mode. The leakage loss was analyzed comprehensively. Simulations show that the core diameter and the hole-to-hole spacing have a small influence on leakage loss, but for a given wavelength the desired lowest leakage loss could be obtained by tuning the value of hole-to-hole spacing, while the rounded diameter has a larger influence on leakage loss than the former factors and

• 出版日期2008-9
• 单位北京邮电大学