Achievement of arbitrary bandwidth of a narrow bandpass filter

Cheng Chung Lee; Sheng Hui Chen; Chien Cheng Kuo; Ching Yi Wei

doi:10.1364/OE.15.015228

Achievement of arbitrary bandwidth of a narrow bandpass filter

Cheng Chung Lee, Sheng Hui Chen, Chien Cheng Kuo, Ching Yi Wei

Department of Optics and Photonics

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

By adjusting the coating parameters to vary the refractive index of the thin film material, we are able to fine tune the bandwidth of a narrow bandpass filter to an arbitrary value. The relation between the varied index An and the maximum arbitrary bandwidth was analyzed. A 4-skip-0 bandpass filter for a 100 GHz DWDM system was designed and fabricated. In addition, the relation between the tolerance of the index and the bandwidth was also analyzed to avoid broadening or narrowing the bandwidth. The final results showed that the arbitrary bandwidth met the requirements very well.

Original language	English
Pages (from-to)	15228-15233
Number of pages	6
Journal	Optics Express
Volume	15
Issue number	23
DOIs	https://doi.org/10.1364/OE.15.015228
State	Published - 12 Nov 2007

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abstract = "By adjusting the coating parameters to vary the refractive index of the thin film material, we are able to fine tune the bandwidth of a narrow bandpass filter to an arbitrary value. The relation between the varied index An and the maximum arbitrary bandwidth was analyzed. A 4-skip-0 bandpass filter for a 100 GHz DWDM system was designed and fabricated. In addition, the relation between the tolerance of the index and the bandwidth was also analyzed to avoid broadening or narrowing the bandwidth. The final results showed that the arbitrary bandwidth met the requirements very well.",

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AB - By adjusting the coating parameters to vary the refractive index of the thin film material, we are able to fine tune the bandwidth of a narrow bandpass filter to an arbitrary value. The relation between the varied index An and the maximum arbitrary bandwidth was analyzed. A 4-skip-0 bandpass filter for a 100 GHz DWDM system was designed and fabricated. In addition, the relation between the tolerance of the index and the bandwidth was also analyzed to avoid broadening or narrowing the bandwidth. The final results showed that the arbitrary bandwidth met the requirements very well.

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Achievement of arbitrary bandwidth of a narrow bandpass filter

Abstract

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