Phase-Shift Method-Based Optical VSB Modulation Using High-Pass Hilbert Transform
This report presents a novel method of generating an optical vestigial sideband (VSB) modulated signal without using optical bandpass filters. Using a modified Hilbert transformer based on digital signal processing, an optical VSB-modulated signal is generated using the phase-shift method. The propo...
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IEEE
2016-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/7553559/ |
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| author | K. I. Amila Sampath Katsumi Takano |
| author_facet | K. I. Amila Sampath Katsumi Takano |
| author_sort | K. I. Amila Sampath |
| collection | DOAJ |
| description | This report presents a novel method of generating an optical vestigial sideband (VSB) modulated signal without using optical bandpass filters. Using a modified Hilbert transformer based on digital signal processing, an optical VSB-modulated signal is generated using the phase-shift method. The proposed method is demonstrated experimentally for an optical binary phase-shift keying (BPSK) signal. The proposed method is wavelength-transparent compared to an optical bandpass filtering method, where the wavelength dependence of the optical bandpass filter limits applications. Furthermore, the optical bandwidth of the modulated signal is readily adjustable by changing the cutoff frequency of the high-pass Hilbert transformer. Fiber transmission characteristics of a single-channel optical BPSK-VSB signal are analyzed using a 100-km transmission link. Results of fiber transmission analysis show tolerance of the proposed modulation scheme to fiber nonlinearity-based signal distortions. For a 10 Gbit/s non-return-to zero(NRZ) sequence, a self-phase modulation threshold of 13 dBm is reported for the studied system. |
| format | Article |
| id | doaj-art-de1df90c6bfc42c19a2a0528a3c5dce3 |
| institution | Matheson Library |
| issn | 1943-0655 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-de1df90c6bfc42c19a2a0528a3c5dce32025-07-01T23:07:36ZengIEEEIEEE Photonics Journal1943-06552016-01-018511310.1109/JPHOT.2016.26032367553559Phase-Shift Method-Based Optical VSB Modulation Using High-Pass Hilbert TransformK. I. Amila Sampath0Katsumi Takano1Department of Electrical Engineering, Yamagata University, Yonezawa, Yamagata, JapanDepartment of Electrical Engineering, Yamagata University, Yonezawa, Yamagata, JapanThis report presents a novel method of generating an optical vestigial sideband (VSB) modulated signal without using optical bandpass filters. Using a modified Hilbert transformer based on digital signal processing, an optical VSB-modulated signal is generated using the phase-shift method. The proposed method is demonstrated experimentally for an optical binary phase-shift keying (BPSK) signal. The proposed method is wavelength-transparent compared to an optical bandpass filtering method, where the wavelength dependence of the optical bandpass filter limits applications. Furthermore, the optical bandwidth of the modulated signal is readily adjustable by changing the cutoff frequency of the high-pass Hilbert transformer. Fiber transmission characteristics of a single-channel optical BPSK-VSB signal are analyzed using a 100-km transmission link. Results of fiber transmission analysis show tolerance of the proposed modulation scheme to fiber nonlinearity-based signal distortions. For a 10 Gbit/s non-return-to zero(NRZ) sequence, a self-phase modulation threshold of 13 dBm is reported for the studied system.https://ieeexplore.ieee.org/document/7553559/Optical communicationsbinary phase-shift keying optical vestigial sideband (BPSK-VSB)BPSK single-sideband (SSB)fiber transmissionhomodyne detectionpeak-to-average power ratio (PAPR). |
| spellingShingle | K. I. Amila Sampath Katsumi Takano Phase-Shift Method-Based Optical VSB Modulation Using High-Pass Hilbert Transform IEEE Photonics Journal Optical communications binary phase-shift keying optical vestigial sideband (BPSK-VSB) BPSK single-sideband (SSB) fiber transmission homodyne detection peak-to-average power ratio (PAPR). |
| title | Phase-Shift Method-Based Optical VSB Modulation Using High-Pass Hilbert Transform |
| title_full | Phase-Shift Method-Based Optical VSB Modulation Using High-Pass Hilbert Transform |
| title_fullStr | Phase-Shift Method-Based Optical VSB Modulation Using High-Pass Hilbert Transform |
| title_full_unstemmed | Phase-Shift Method-Based Optical VSB Modulation Using High-Pass Hilbert Transform |
| title_short | Phase-Shift Method-Based Optical VSB Modulation Using High-Pass Hilbert Transform |
| title_sort | phase shift method based optical vsb modulation using high pass hilbert transform |
| topic | Optical communications binary phase-shift keying optical vestigial sideband (BPSK-VSB) BPSK single-sideband (SSB) fiber transmission homodyne detection peak-to-average power ratio (PAPR). |
| url | https://ieeexplore.ieee.org/document/7553559/ |
| work_keys_str_mv | AT kiamilasampath phaseshiftmethodbasedopticalvsbmodulationusinghighpasshilberttransform AT katsumitakano phaseshiftmethodbasedopticalvsbmodulationusinghighpasshilberttransform |