High-Resolution Tunable Filter With Flexible Bandwidth and Power Attenuation Based on an LCoS Processor
High-resolution optical filters and wavelength selective switches are the essential components in the current and next-generation dynamic optical networks. A high-resolution programmable filter for telecom application is proposed and experimentally demonstrated based on a 4 k phase-only liquid cryst...
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IEEE
2018-01-01
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Series: | IEEE Photonics Journal |
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Online Access: | https://ieeexplore.ieee.org/document/8493331/ |
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author | Yunshu Gao Genxiang Chen Xiao Chen Qian Zhang Qiao Chen Ce Zhang Kai Tian Zhongwei Tan Chao Yu |
author_facet | Yunshu Gao Genxiang Chen Xiao Chen Qian Zhang Qiao Chen Ce Zhang Kai Tian Zhongwei Tan Chao Yu |
author_sort | Yunshu Gao |
collection | DOAJ |
description | High-resolution optical filters and wavelength selective switches are the essential components in the current and next-generation dynamic optical networks. A high-resolution programmable filter for telecom application is proposed and experimentally demonstrated based on a 4 k phase-only liquid crystal on silicon (LCoS) spatial light modulator. The tuning resolution, bandwidth, and power attenuation for each wavelength channel can be modulated independently by remote software control. For each channel, the center wavelength is tuned in the step of 7.5 ± 1 pm and the 3 dB bandwidth achieves from 10 GHz to 3 THz. Furthermore, by multi-casting hologram design techniques for an LCoS, the power attenuation is adjusted from 0 dB to 30 dB with the step of 0.1 dB. The insertion loss is less than 6 dB across the entire C-band and 1.8 dB of it can be further improved by adopting an LCoS chip with smaller reflection loss. |
first_indexed | 2024-12-16T17:39:38Z |
format | Article |
id | doaj.art-dcafd1ad195540f898c00891e66355b0 |
institution | Directory Open Access Journal |
issn | 1943-0655 |
language | English |
last_indexed | 2024-12-16T17:39:38Z |
publishDate | 2018-01-01 |
publisher | IEEE |
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series | IEEE Photonics Journal |
spelling | doaj.art-dcafd1ad195540f898c00891e66355b02022-12-21T22:22:39ZengIEEEIEEE Photonics Journal1943-06552018-01-011061810.1109/JPHOT.2018.28763478493331High-Resolution Tunable Filter With Flexible Bandwidth and Power Attenuation Based on an LCoS ProcessorYunshu Gao0https://orcid.org/0000-0002-7981-2698Genxiang Chen1Xiao Chen2Qian Zhang3Qiao Chen4Ce Zhang5Kai Tian6Zhongwei Tan7Chao Yu8College of Science, Minzu University of China, Beijing, ChinaCollege of Science, Minzu University of China, Beijing, ChinaCollege of Science, Minzu University of China, Beijing, ChinaCollege of Science, Minzu University of China, Beijing, ChinaCollege of Science, Minzu University of China, Beijing, ChinaCollege of Science, Minzu University of China, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, ChinaHigh-resolution optical filters and wavelength selective switches are the essential components in the current and next-generation dynamic optical networks. A high-resolution programmable filter for telecom application is proposed and experimentally demonstrated based on a 4 k phase-only liquid crystal on silicon (LCoS) spatial light modulator. The tuning resolution, bandwidth, and power attenuation for each wavelength channel can be modulated independently by remote software control. For each channel, the center wavelength is tuned in the step of 7.5 ± 1 pm and the 3 dB bandwidth achieves from 10 GHz to 3 THz. Furthermore, by multi-casting hologram design techniques for an LCoS, the power attenuation is adjusted from 0 dB to 30 dB with the step of 0.1 dB. The insertion loss is less than 6 dB across the entire C-band and 1.8 dB of it can be further improved by adopting an LCoS chip with smaller reflection loss.https://ieeexplore.ieee.org/document/8493331/Optical filtertunable filterliquid crystal on silicon (LCoS)flexible bandwidth selection |
spellingShingle | Yunshu Gao Genxiang Chen Xiao Chen Qian Zhang Qiao Chen Ce Zhang Kai Tian Zhongwei Tan Chao Yu High-Resolution Tunable Filter With Flexible Bandwidth and Power Attenuation Based on an LCoS Processor IEEE Photonics Journal Optical filter tunable filter liquid crystal on silicon (LCoS) flexible bandwidth selection |
title | High-Resolution Tunable Filter With Flexible Bandwidth and Power Attenuation Based on an LCoS Processor |
title_full | High-Resolution Tunable Filter With Flexible Bandwidth and Power Attenuation Based on an LCoS Processor |
title_fullStr | High-Resolution Tunable Filter With Flexible Bandwidth and Power Attenuation Based on an LCoS Processor |
title_full_unstemmed | High-Resolution Tunable Filter With Flexible Bandwidth and Power Attenuation Based on an LCoS Processor |
title_short | High-Resolution Tunable Filter With Flexible Bandwidth and Power Attenuation Based on an LCoS Processor |
title_sort | high resolution tunable filter with flexible bandwidth and power attenuation based on an lcos processor |
topic | Optical filter tunable filter liquid crystal on silicon (LCoS) flexible bandwidth selection |
url | https://ieeexplore.ieee.org/document/8493331/ |
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