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We propose and demonstrate an optical single sideband (OSSB) modulation approach with continuously tunable optical carrier-to-sideband ratio (OCSR) theoretically and experimentally. In the proposal, one dual-parallel Mach-Zehnder modulator (DP-MZM) acts as a key component. By properly setting the modulator, three separate sub-modulators inside the DP-MZM can be used to realize the OSSB modulation, optical carrier phase-shift, and lightwave interference. By adjusting the bias voltage of one sub-modulator, the OCSR can be tuned continuously. In the experiment, the tuning range of OCSR is found to be between-20.8 dB and 23.5 dB at modulation index m=0.2. We also analyze the relationship between the OCSR and RF power after detection. It is found that with properly adjusting the OCSR, the receiver sensitivity can be greatly improved.
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Keywords:
- optical communications /
- microwave photonic /
- optical carrier-to-sideband ratio /
- single-sideband modulation
[1] Pei L, Liu G H, Ning T G, Gao S, Li J, Zhang Y J 2012 Acta Phys. Sin. 61 064203 (in Chinese) [裴丽, 刘观辉, 宁提纲, 高嵩, 李晶, 张义军 2012 物理学报 61 064203]
[2] Li J, Ning T G, Pei L, Qi C H 2009 Opt. Lett. 34 3136
[3] Li J, Ning T G, Pei L, Qi C H, Zhou Q, Hu X D, Gao S 2010 Opt. Lett. 35 3619
[4] Chen Y L, Wu Z M, Tang X, Lin X D, Wei Y, Xia G Q 2013 Acta Phys. Sin. 62 104207 (in Chinese) [陈于淋, 吴正茂, 唐曦, 林晓东, 魏月, 夏光琼 2013 物理学报 62 104207]
[5] Gao S, Pei L, Ning T G, Qi C H, Liu G H, Li J 2012 Acta Phys. Sin. 61 124204 (in Chinese) [高嵩, 裴丽, 宁提纲, 祁春慧, 刘观辉, 李晶 2012 物理学报 61 124204]
[6] Liu S X, Wang Y C, He H C, Zhang M J 2009 Acta Phys. Sin. 58 7241 (in Chinese) [牛生晓, 王云才, 贺虎成, 张明江2009 物理学报 58 7241]
[7] Ye Q, Liu F, Cai H W, Qu R H, Fang Z J 2005 Chin. Phys. 14 969
[8] Meslener G 1984 IEEE J. Quantum Electron. 20 1208
[9] Elrefaie A F, Wagner R E, Atlas D A, Daut D G 1988 J. Lightwave Technol. 6 704
[10] Hraimel B, Zhang X P, Mohamed M, Wu K 2009 J. Opt. Commun. Netw. 1 331
[11] Liu H J, Ren B, Feng J C 2012 Chin. Phys. B 21 40501
[12] Li S Y, Zheng X P, Zhang H Y, Zhou B K 2011 Opt. Lett. 36 546
[13] Zhang H T, Pan S L, Huang M H, Chen X F 2012 Opt. Lett. 37 866
[14] Shen Y C, Zhang X M, Chen K S 2005 IEEE Photon. Technol. Lett. 17 1277
[15] Attygalle M, Lim C, Pendock G J, Nirmalathas A, Edvell G 2005 IEEE Photonics. Technol. Lett. 17 190
[16] Li W, Zhu N H, Wang L X Opt. Commun. 284 3437
[17] Li J, Ning T G, Pei L, Gao S, You H D, Chen H Y, Jia N 2013 Opt. Laser Technol. 48 210
[18] Li J, Ning T G, Pei L, Qi C H, Hu X D, Zhou Q 2010 IEEE Photon. Technol. Lett. 22 516
[19] Hraimel B, Zhang X P, Pei Y Q, Wu K, Liu T J, Xu T F, Nie Q H 2011 J. Lightwave Technol. 29 775
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[1] Pei L, Liu G H, Ning T G, Gao S, Li J, Zhang Y J 2012 Acta Phys. Sin. 61 064203 (in Chinese) [裴丽, 刘观辉, 宁提纲, 高嵩, 李晶, 张义军 2012 物理学报 61 064203]
[2] Li J, Ning T G, Pei L, Qi C H 2009 Opt. Lett. 34 3136
[3] Li J, Ning T G, Pei L, Qi C H, Zhou Q, Hu X D, Gao S 2010 Opt. Lett. 35 3619
[4] Chen Y L, Wu Z M, Tang X, Lin X D, Wei Y, Xia G Q 2013 Acta Phys. Sin. 62 104207 (in Chinese) [陈于淋, 吴正茂, 唐曦, 林晓东, 魏月, 夏光琼 2013 物理学报 62 104207]
[5] Gao S, Pei L, Ning T G, Qi C H, Liu G H, Li J 2012 Acta Phys. Sin. 61 124204 (in Chinese) [高嵩, 裴丽, 宁提纲, 祁春慧, 刘观辉, 李晶 2012 物理学报 61 124204]
[6] Liu S X, Wang Y C, He H C, Zhang M J 2009 Acta Phys. Sin. 58 7241 (in Chinese) [牛生晓, 王云才, 贺虎成, 张明江2009 物理学报 58 7241]
[7] Ye Q, Liu F, Cai H W, Qu R H, Fang Z J 2005 Chin. Phys. 14 969
[8] Meslener G 1984 IEEE J. Quantum Electron. 20 1208
[9] Elrefaie A F, Wagner R E, Atlas D A, Daut D G 1988 J. Lightwave Technol. 6 704
[10] Hraimel B, Zhang X P, Mohamed M, Wu K 2009 J. Opt. Commun. Netw. 1 331
[11] Liu H J, Ren B, Feng J C 2012 Chin. Phys. B 21 40501
[12] Li S Y, Zheng X P, Zhang H Y, Zhou B K 2011 Opt. Lett. 36 546
[13] Zhang H T, Pan S L, Huang M H, Chen X F 2012 Opt. Lett. 37 866
[14] Shen Y C, Zhang X M, Chen K S 2005 IEEE Photon. Technol. Lett. 17 1277
[15] Attygalle M, Lim C, Pendock G J, Nirmalathas A, Edvell G 2005 IEEE Photonics. Technol. Lett. 17 190
[16] Li W, Zhu N H, Wang L X Opt. Commun. 284 3437
[17] Li J, Ning T G, Pei L, Gao S, You H D, Chen H Y, Jia N 2013 Opt. Laser Technol. 48 210
[18] Li J, Ning T G, Pei L, Qi C H, Hu X D, Zhou Q 2010 IEEE Photon. Technol. Lett. 22 516
[19] Hraimel B, Zhang X P, Pei Y Q, Wu K, Liu T J, Xu T F, Nie Q H 2011 J. Lightwave Technol. 29 775
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