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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Main Authors: Yunshu Gao, Genxiang Chen, Xiao Chen, Qian Zhang, Qiao Chen, Ce Zhang, Kai Tian, Zhongwei Tan, Chao Yu
Format: Article
Language:English
Published: IEEE 2018-01-01
Series:IEEE Photonics Journal
Subjects:
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.
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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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