Application of hydrofluoric acid';s corrosive properties in the fabrication of photonic crystal fibers

作者：Li Jing^*; Zhang Weigang; Du Jiangbing; Jiang Meng; Zhang Qi; Liu Yaping; Liu Zhuolin; Qu Kenan; Liu Yange; Wang Zhi

来源：Chinese Journal of Lasers, 2009, 36(3): 705-709.

DOI：10.3788/CJL20093603.0705

• Air-holes
• Complicated structures
• Effective refractive indices
• Equivalent refractive indices
• Fabrication methods
• Fabrication of photonic crystals
• Fundamental modes
• Glass walls
• Group velocities
• Guiding properties
• Leakage loss
• Non-linear coefficients
• Scattering loss
• Transversal structures

We introduce a new fabrication method for photonic crystal fibers (PCFs) using the hydrofluoric acid';s corrosive property. The transversal structure of a PCF can be changed by filling its air-holes with hydrofluoric acid, which corrodes the glass wall around and therefore widens the air-holes. By accurately controlling the hydrofluoric acid corrosion time, we can enlarge the air holes up to millimeter precision. This method can be used as a supplement of the traditional fusing-drawing technology to realize more complicated structures of PCFs in practice. Meanwhile, this method greatly modifies the light-guiding properties of PCFs. Experimental results indicate that, with the increase of corrosion time, the leakage loss and the scattering loss will decrease, the nonlinear coefficient will increase, the effective refractive index of fundamental mode and the equivalent refractive index of cladding will decrease, and the group velocity dispersion will be modified accordingly.

• 出版日期2009
• 单位南开大学