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Performance Improvement in Fiber-Optic Spectrometers Using Photonic Crystal Fibers |
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| Authors: | Saeed Golmohammadi Hashem Imani Amin Khalafi Ghader Karimian Ali Rostami |
| Affiliation: | 1. Nanophotonics Group, Department of Engineering-Emerging Technologies , School of Engineering-Emerging Technologies, University of Tabriz , Tabriz, Iran;2. Department of Engineering , Islamic Azad University-Tabriz Branch , Tabriz, Iran;3. Department of Engineering , Islamic Azad University-Ardabil Branch , Ardabil, Iran;4. Department of Electrical and Computer Engineering , Faculty of Electrical and Computer Engineering, University of Tabriz , Tabriz, Iran;5. Nanophotonics Group, Department of Engineering-Emerging Technologies , School of Engineering-Emerging Technologies, University of Tabriz , Tabriz, Iran;6. Department of Electrical and Computer Engineering , Faculty of Electrical and Computer Engineering, University of Tabriz , Tabriz, Iran |
| Abstract: | Abstract Resolution enhancement of a high-speed fiber-optic spectrometer is investigated in this article. The operation of these types spectrometers is based on conversion of the spectral-domain signal into the time domain by a dispersive element. A photonic crystal fiber is used as a dispersive fiber in this spectrometer. Resolution enhancement of considered spectrometer with photonic crystal fibers is studied. The fiber loss and length minimization in this spectrometer are obtained. Simulation results show that an increase in resolution will cause a decrease in the speed of the spectrometer. Trade offs between resolution and speed are studied. |
| Keywords: | fiber-optic spectrometer photonic crystal fiber spectrometer resolution improvement |