Dual-band Photonic Filters with Wide Tunable Range Using Chirped Sampled Gratings
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866916432395108352 |
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| author | Zhu, Siemng Yuan, Bocheng Cheng, Weiqing Fan, Yizhe Sun, Yiming Al-Rubaiee, Mohanad Akbar, Jehan Marsh, John H. Hou, Lianping |
| author_facet | Zhu, Siemng Yuan, Bocheng Cheng, Weiqing Fan, Yizhe Sun, Yiming Al-Rubaiee, Mohanad Akbar, Jehan Marsh, John H. Hou, Lianping |
| contents | We have developed a photonic filter featuring dual independently tunable passbands. Employing the reconstruction equivalent-chirp technique, we designed linearly chirped sampled Bragg gratings with two equivalent phase shifts positioned at 1/3 and 2/3 of the cavity, thus introducing two passbands in the +1st channel. Leveraging the significant thermo-optic effect of silicon, dual-band tuning is achieved via micro-heaters integrated on the chip surface. By tuning the injection currents ranging from 0 to 35 mA into the micro-heaters, the filter exhibits a wide range of dual-wavelength filtering performance, with the frequency interval between the two passbands adjustable from 37.2 GHz to 186.1 GHz. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_08248 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Dual-band Photonic Filters with Wide Tunable Range Using Chirped Sampled Gratings Zhu, Siemng Yuan, Bocheng Cheng, Weiqing Fan, Yizhe Sun, Yiming Al-Rubaiee, Mohanad Akbar, Jehan Marsh, John H. Hou, Lianping Optics Applied Physics We have developed a photonic filter featuring dual independently tunable passbands. Employing the reconstruction equivalent-chirp technique, we designed linearly chirped sampled Bragg gratings with two equivalent phase shifts positioned at 1/3 and 2/3 of the cavity, thus introducing two passbands in the +1st channel. Leveraging the significant thermo-optic effect of silicon, dual-band tuning is achieved via micro-heaters integrated on the chip surface. By tuning the injection currents ranging from 0 to 35 mA into the micro-heaters, the filter exhibits a wide range of dual-wavelength filtering performance, with the frequency interval between the two passbands adjustable from 37.2 GHz to 186.1 GHz. |
| title | Dual-band Photonic Filters with Wide Tunable Range Using Chirped Sampled Gratings |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2410.08248 |