کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
464111 | 697287 | 2014 | 5 صفحه PDF | دانلود رایگان |
• A new PCF with two ZDWs based on the tellurite ellipse core is designed.
• The air holes in the cladding region have a V-shape distribution.
• By adjusting size of ellipse core, the maximum birefringence is larger than 10−1.
• This PCF structure gets the high birefringence and nonlinearity at the same time.
In this paper, a new photonic crystal fiber (PCF) with two zero dispersion wavelengths (ZDWs) based on the tellurite ellipse core is designed. The air holes in the cladding region have a V-shape distribution, which can increase the birefringence. By adjusting the size of tellurite ellipse core, different birefringence and nonlinearity coefficient can be obtained, and the dispersion can also be tailored. When the long axis of the tellurite ellipse core is 0.5 μm and the short axis is 0.25 μm, the birefringence of 7.66 × 10−2 and nonlinearity of 3400 W−1 km−1 around 1550 nm are obtained. This PCF structure provides a way to get the high birefringence and nonlinearity at the same time, which can find extensive applications in the optical communication and sensor system.
Journal: Optical Fiber Technology - Volume 20, Issue 4, August 2014, Pages 320–324