Ultrashort laser pulse induced core-mode blocker and its application to fabrication of all-fiber bandpass filter

@article{Lim2009UltrashortLP,
  title={Ultrashort laser pulse induced core-mode blocker and its application to fabrication of all-fiber bandpass filter},
  author={Sun Do Lim and Jae Gu Kim and Kwanil Lee and Sang Bae Lee and Byoung Yoon Kim},
  journal={2009 14th OptoElectronics and Communications Conference},
  year={2009},
  pages={1-2}
}
We propose and demonstrate a practical application of femtosecond laser ablation technique for the fabrication of a core mode blocker. We also describe the core mode blocker-based all-fiber tunable bandpass filter with an insertion loss of 1.8dB and non-resonance wavelength suppression of 23dB. 

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