A multifunctional all-fiber device with a magnetic nanoparticles core mode blocker for wavelength bandpass filtering and multi-to-single mode conversion
✍ Scribed by Yong Zhu; Xiaoqin Li; Hao Mei; Chao Wang; Tao Zhu
- Book ID
- 102950752
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 719 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
A multifunctional all‐fiber device that can simultaneously serve as a multimode‐to‐single mode converter and a wavelength filter is presented in this article. The device has a concatenated structure consisting of a multimode fiber, a hollow core fiber, a single‐mode core mode blocker (made of magnetic nanoparticles), and a long period fiber grating fabricated in a single mode fiber. A quantitative theoretical analysis and experiments are carried out. A device with an extinction ratio of 25.7 dB and an insertion loss of −6.8 dB is obtained, and its performance should be able to be further improved by optimizing the fabrication process in future. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:740–744, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25834