Tunable and broadband microwave frequency combs based on a semiconductor laser with incoherent optical feedback
Based on a semiconductor laser (SL) with incoherent optical feedback, a novel all-optical scheme for generating tunable and broadband microwave frequency combs (MFCs) is proposed and investigated numerically. The results show that, under suitable operation parameters, the SL with incoherent optical...
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Published in | Chinese physics B Vol. 24; no. 5; pp. 363 - 368 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
01.05.2015
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Online Access | Get full text |
ISSN | 1674-1056 2058-3834 1741-4199 |
DOI | 10.1088/1674-1056/24/5/054207 |
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Abstract | Based on a semiconductor laser (SL) with incoherent optical feedback, a novel all-optical scheme for generating tunable and broadband microwave frequency combs (MFCs) is proposed and investigated numerically. The results show that, under suitable operation parameters, the SL with incoherent optical feedback can be driven to operate at a regular pulsing state, and the generated MFCs have bandwidths broader than 40 GHz within a 10 dB amplitude variation. For a fixed bias current, the line spacing (or repetition frequency) of the MFCs can be easily tuned by varying the feedback delay time and the feedback strength, and the tuning range of the line spacing increases with the increase in the bias current. The linewidth of the MFCs is sensitive to the variation of the feedback delay time and the feedback strength, and a linewidth of tens of KHz can be achieved through finely adjusting the feedback delay time and the feedback strength. In addition, mappings of amplitude variation, repetition frequency, and linewidth of MFCs in the parameter space of the feedback delay time and the feedback strength are presented. |
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AbstractList | Based on a semiconductor laser (SL) with incoherent optical feedback, a novel all-optical scheme for generating tunable and broadband microwave frequency combs (MFCs) is proposed and investigated numerically. The results show that, under suitable operation parameters, the SL with incoherent optical feedback can be driven to operate at a regular pulsing state, and the generated MFCs have bandwidths broader than 40 GHz within a 10 dB amplitude variation. For a fixed bias current, the line spacing (or repetition frequency) of the MFCs can be easily tuned by varying the feedback delay time and the feedback strength, and the tuning range of the line spacing increases with the increase in the bias current. The linewidth of the MFCs is sensitive to the variation of the feedback delay time and the feedback strength, and a linewidth of tens of KHz can be achieved through finely adjusting the feedback delay time and the feedback strength. In addition, mappings of amplitude variation, repetition frequency, and linewidth of MFCs in the parameter space of the feedback delay time and the feedback strength are presented. Based on a semiconductor laser (SL) with incoherent optical feedback, a novel all-optical scheme for generating tunable and broadband microwave frequency combs (MFCs) is proposed and investigated numerically. The results show that, under suitable operation parameters, the SL with incoherent optical feedback can be driven to operate at a regular pulsing state, and the generated MFCs have bandwidths broader than 40 GHz within a 10 dB amplitude variation. For a fixed bias current, the line spacing (or repetition frequency) of the MFCs can be easily tuned by varying the feedback delay time and the feedback strength, and the tuning range of the line spacing increases with the increase in the bias current. The linewidth of the MFCs is sensitive to the variation of the feedback delay time and the feedback strength, and a linewidth of tens of KHz can be achieved through finely adjusting the feedback delay time and the feedback strength. In addition, mappings of amplitude variation, repetition frequency, and linewidth of MFCs in the parameter space of the feedback delay time and the feedback strength are presented. |
Author | 赵茂戎 吴正茂 邓涛 周桢力 夏光琼 |
AuthorAffiliation | school of Physical Science and Technology, Southwest University, Chongqing 400715, China State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China |
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Cites_doi | 10.1038/nature04275 10.1109/JQE.2003.809338 10.1109/JQE.2011.2115994 10.7498/aps.63.0705042014 10.1109/JSTQE.2004.836020 10.1103/PhysRevA.51.4181 10.7498/aps.62.1042082013 10.1364/OL.31.002254 10.1109/JSTQE.2004.835296 10.1109/LPT.2013.2246561 10.1364/OL.34.000812 10.1016/S0030-4018(03)01466-4 10.1016/S0030-4018(99)00603-3 10.7498/aps.62.2305042013 10.1134/S1054660X12100246 10.1016/j.optcom.2011.02.016 10.1109/JQE.2004.828237 10.1103/PhysRevLett.55.1711 10.1109/JQE.2010.2078799 10.1038/nphoton.2008.227 10.1364/OE.17.007491 10.1016/j.optcom.2012.12.074 10.1016/j.optcom.2007.05.006 10.1364/OL.34.001636 10.1364/OE.18.020360 10.1364/OL.32.001917 10.1109/JLT.2005.850805 |
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Notes | 11-5639/O4 semiconductor laser, incoherent optical feedback, microwave frequency combs Based on a semiconductor laser (SL) with incoherent optical feedback, a novel all-optical scheme for generating tunable and broadband microwave frequency combs (MFCs) is proposed and investigated numerically. The results show that, under suitable operation parameters, the SL with incoherent optical feedback can be driven to operate at a regular pulsing state, and the generated MFCs have bandwidths broader than 40 GHz within a 10 dB amplitude variation. For a fixed bias current, the line spacing (or repetition frequency) of the MFCs can be easily tuned by varying the feedback delay time and the feedback strength, and the tuning range of the line spacing increases with the increase in the bias current. The linewidth of the MFCs is sensitive to the variation of the feedback delay time and the feedback strength, and a linewidth of tens of KHz can be achieved through finely adjusting the feedback delay time and the feedback strength. In addition, mappings of amplitude variation, repetition frequency, and linewidth of MFCs in the parameter space of the feedback delay time and the feedback strength are presented. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
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Snippet | Based on a semiconductor laser (SL) with incoherent optical feedback, a novel all-optical scheme for generating tunable and broadband microwave frequency... Based on a semiconductor laser (SL) with incoherent optical feedback, a novel all-optical scheme for generating tunable and broadband microwave frequency combs... |
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SubjectTerms | Broadband Delay Feedback Mathematical models Microwave frequencies Optical feedback Semiconductor lasers Strength 光反馈 半导体激光器 反馈强度 宽带 微波频率 微生物燃料电池 调谐范围 非相干 |
Title | Tunable and broadband microwave frequency combs based on a semiconductor laser with incoherent optical feedback |
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