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Chen W.,Jiangsu Hengtong Optical Fiber Technology Co. | Yuan J.,Jiangsu Hengtong Optical Fiber Technology Co. | He Z.-W.,Jiangsu Hengtong Optical Fiber Technology Co. | Song J.,Jiangsu Hengtong Optical Fiber Technology Co. | Sun X.-Z.,Jiangsu Hengtong Optical Fiber Technology Co.
Guangdianzi Jiguang/Journal of Optoelectronics Laser | Year: 2015

In this paper, through the basic theory of electromagnetic field, using the scalar wave equation, we analyze and calculate a kind of novel ultra-large-area optical fiber waveguide. The fiber's core index is 1.46116, and its diameter is 13.99 μm. In its inner cladding, there is a low-refractive-index ring, its refractive index is 1.45562, and its width is 6.95 μm. Then the continual chemical vapor deposition process is used to fabricate the novel fiber. Its cladding diameter is 125 μm. The measuring results show that the fibers have superior performance, including ultra-low loss and ultra-large area characteristics. Their typical attenuation coefficients are 0.165 dB/km and 0.179 dB/km at 1550 nm and 1625 nm, respectively. The mode-field diameter at 1550 nm wavelength is 13.96 μm, and the effective area is 153 μm2. Moreover, the novel optical fibers have outstanding anti-bending performance: on the condition of 30 mm bending radius and 100 turns, its bending additional losses are 0.032 dB and 0.093 dB at 1550 nm and 1625 nm, respectively. Comprehensive tests show that their key technological specifications are much better than the international technological level at present, and they can meet the demands of 400 Gbit/s high-data-rate optical communication network. The novel optical fibers could be the key and fundamental materials for the next generation high-rate fiber communications. © 2015, Board of Optronics Lasers. All right reserved. Source

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