Abstract

We have succeeded in fabricating a low-loss and long length photonic crystal fiber (PCF) by improvement of fabrication process. The fiber is 10 km long and has a lowest loss of 0.37 dB/km at 1550 nm ever reported. We also succeeded in reducing the OH absorption loss to 3 dB/km. This is almost the half of the value ever reported. Using the low-loss PCF, we performed the first DWDM transmission experiment. DWDM signal of 8 × 10 Gbit/s is successfully transmitted through the PCF.

© 2004 IEEE

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J. Lightwave Technol. (1)

K. Tajima, M. Ohashi, K. Shiraki, M. Tateda and S.Syu-ichi Shibata, "Low Rayleigh scattering P2O5-F-SiO2 glasses", J. Lightwave Technol., vol. 10, pp. 1532-1535, Nov. 1992 .

Opt. Lett. (3)

Other (6)

K. Mori, T. Morioka and M. Saruwatari, "Group velocity dispersion measurement using supercontinuum picosecond pulses generated in an optical fiber", Electron. Lett., vol. 29, pp. 987-989, May 1993.

R. T. Bise, D. J. Trevor, E. Monberg and F. Dimarcello, "Impact of preform fabrication and fiber draw on the optical properties of microstructured fibers", in Proc. IWCS2002, 2002, pp. 339- 343.

H. Kubota, K. Suzuki, S. Kawanishi, M. Nakazawa, M. Tanaka and M. Fujita, "Low-loss, 2 km-long photonic crystal fiber with zero GVD in the near ir suitable for picosecond pulse propagation at the 800 nm band", in CLEO '01, 2001, pp. 635-636.

K. Tajima, K. Nakajima, K. Kurokawa, N. Yoshizawa and M. Ohashi, "Low-loss photonic crystal fibers", in Proc. OFC2002, Mar. 2002, ThS3,. pp. 523-524.

L. Farr, J. C. Knight, B. J. Mangan and P. J. Roberts, "Low loss photonic crystal fiber", in Proc. ECOC2002, Sep. 2002, PD1.3.

J. C. Knight, T. A. Birks, D. M. Atkin and P. S. J.P. St. J. Russell, "Pure silica single-mode fiber with hexagonal photonic crystal cladding", in Proc. OFC1996, 1996, PD3.

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