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A simple integrated ratiometric wavelength monitor based on a directional coupler |
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| Authors: | A.M. Hatta G. Farrell Y. Semenova Q. Wang |
| Affiliation: | 1. Engineering Physics Department, Faculty of Industrial Technology, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia;2. Photonics Research Centre, School of Electronic and Communications Engineering, Dublin Institute of Technology, Kevin Street, D8, Ireland;3. Data Storage Institute, DSI Building, 5 Engineering Drive 1, Singapore;4. Physics Department, Faculty of Science, Jazan University, Gizan, Saudi Arabia |
| Abstract: | A simple integrated ratiometric wavelength-monitoring device based on a single directional coupler (DC) is proposed and designed. To meet the desired spectral response, a computationally fast method is proposed to optimize the separation distance between two waveguides and the interaction length of the DC based on the local supermodes solution. The wavelength discrimination of the designed structure is demonstrated numerically. |
| Keywords: | Directional couplers Wavelength monitor Integrated optics |
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