Optimization design and realization of Gaussian apodized sample gratings for narrowband wavelength selectivity filters

Abstract

A sample fiber Bragg grating (SFBG) with Gaussian apodization profile is designed and optimized for the narrowband wavelength filter, and the relevant conclusions provide a guide for the further filter fabrication. With the grating length limited, a narrowband (5 GHz) grating filter used in the radio over fiber (ROF) system is fabricated, which has insertion loss of 3.463 dB, sideband suppression of 24.21dB, 3 dB bandwidth of 40 pm, and 20 dB bandwidth of 106.3 pm.

Keywords

Ghost / Insertion Loss / Radio Over Fiber / Grating Length / Band Suppression

References

[1] CarballarA., MurielM. A., AzañaJ.. Photonics Technology Letters, 1999, 11: 694

[2] BlaisS., YaoJ.. Photonics Technology Letters, 2006, 18: 2230

[3] JoãoL., Rebola, AdolfoV. T. C.. Journal of Lightwave Technology, 2002, 20: 1537

[4] LimaM., TeixeiraA., RochaJ.. Electron. Lett., 2000, 36: 1412

[5] CatherineM., ReidD., RobbinsD. J.. Journal Sel. Comm., 1990, 8: 1146

[6] Singh H and M Zippin, ECOC’98, 1998, 189.

[7] DaiY., ChenX., XiaL.. Opt. Lett., 2004, 29: 1333

[8] XihuaZ., WeiP., BinL.. Acta Optica Sinica, 2007, 27: 971

[9] KomukaiT., TamuraK., NakazawaM.. Photonics Technology Letters, 1997, 9: 934

[10] WangX.. Koji Matsushima and Akihiko Nishiki, Optical Express, 2004, 12: 5457