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15 February 2012 Fabrication and characteristic of long photonic crystal fiber taper
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In this paper, we drew a 500 m-long PCF taper directly on the industry drawing tower. The fiber taper has a uniform cross-section structure with OD from 170 μm to 70 μm, and demonstrates very good beam quality. The optical attenuation of PCF taper was measured. The optical attenuation is ~5 dB/km near 1200 nm, but the water absorption peak around 1400 nm and the attenuation beyond 1600 nm are still large. The zero dispersion wavelength (ZDW) was calculated to be ~1090 nm at the taper input end, and shifted to ~870 nm at the taper output end. The PCF taper was pumped with a picosecond laser source at wavelength of 1064 nm, and generated 200 mW output power of SC covering from ~450 nm to 1600 nm.
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Peiguang Yan, Huifeng Wei, Shuangchen Ruan, Su Chen, Chunyu Guo, Jiangtao Guo, Jie Shu, and Guangzhong Cao "Fabrication and characteristic of long photonic crystal fiber taper", Proc. SPIE 8240, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI, 82401R (15 February 2012);

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