A multi-passband microwave photon filter based on multiple dispersion devices
| Autor: | Biao Zhao, Jianghai Wo, Junkai Zhang, Wenshan Cong, Maolong Zhang, Pengfei Du, Tao Wang, Lan Yu |
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| Rok vydání: | 2019 |
| Předmět: |
Physics
Frequency response business.industry Single-mode optical fiber Physics::Optics 02 engineering and technology Interference (wave propagation) 01 natural sciences 010309 optics Interferometry 020210 optoelectronics & photonics Optics Fiber Bragg grating Filter (video) 0103 physical sciences Dispersion (optics) 0202 electrical engineering electronic engineering information engineering business Passband |
| Zdroj: | 17th International Conference on Optical Communications and Networks (ICOCN2018). |
| DOI: | 10.1117/12.2519680 |
| Popis: | In this paper, a multi-passband microwave photonic filter (MPF) based on multiple dispersive devices has been proposed and experimentally demonstrated. The Mach-Zehnder interferometer (MZI) divides the broadband light source (BBS) into multiple optical taps, and with the combination of different dispersion mediums such as chirped fiber Bragg grating (CFBG) and single mode fiber (SMF) to delay the optical tap, a MPF with multiple passbands can be simply achieved. The number of the passbands can be easily controlled by changing the number of the dispersion medium. In the experiment, the frequency response result of the four passbands is obtained by accessing two CFBGs and two SMFs. In addition, by adjusting the wavelength interval of the interference spectrum with a variable optical delay line (VODL), all passbands of the filter can be simultaneously tuned. The filter has broad application prospects in the fields of modern wireless and satellite communication, optoelectronic oscillator and optical sensing. |
| Databáze: | OpenAIRE |
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