Journal ArticleDOI
Fundamentals of Coherent Optical Fiber Communications
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TLDR
The history of research and development related to coherent optical communications is reviewed and the principle of coherent detection is described, including its quantum-noise characteristics, which discusses the role of digital signal processing in mitigating linear transmission impairments, estimating the carrier phase, and tracking the state of polarization of the signal in coherent receivers.Abstract:
The recently developed digital coherent receiver enables us to employ a variety of spectrally efficient modulation formats such as $M$ -ary phase-shift keying and quadrature-amplitude modulation. Moreover, in the digital domain, we can equalize all linear transmission impairments such as group-velocity dispersion and polarization-mode dispersion of transmission fibers, because coherent detection preserves the phase information of the optical signal. This paper reviews the history of research and development related to coherent optical communications and describes the principle of coherent detection, including its quantum-noise characteristics. In addition, it discusses the role of digital signal processing in mitigating linear transmission impairments, estimating the carrier phase, and tracking the state of polarization of the signal in coherent receivers.read more
Citations
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Journal ArticleDOI
Fiber-optic transmission and networking: the previous 20 and the next 20 years [Invited]
TL;DR: Focusing on the optical transport and switching layer, aspects of large-scale spatial multiplexing, massive opto-electronic arrays and holistic optics-electronics-DSP integration, as well as optical node architectures for switching and multiplexed of spatial and spectral superchannels are covered.
Journal ArticleDOI
Synthetic dimension in photonics
TL;DR: In this article, the basic concepts of synthetic dimension in photonics are discussed, and various approaches toward demonstrating such synthetic dimensions for fundamental physics and potential applications are highlighted, as well as the various approaches to demonstrate such synthetic dimension for physics applications.
Journal ArticleDOI
Hertz-linewidth semiconductor lasers using CMOS-ready ultra-high-Q microresonators
Warren Jin,Qi-Fan Yang,Lin Chang,Boqiang Shen,Heming Wang,Mark A. Leal,Lue Wu,Maodong Gao,Avi Feshali,Mario J. Paniccia,Kerry J. Vahala,John E. Bowers +11 more
TL;DR: In this article, a high Q factor of 260 million was achieved in an electrically pumped integrated laser with a corresponding short-term linewidth of 12'Hz and the same configuration was shown to relieve the dispersion requirements for microcomb generation that have handicapped certain nonlinear platforms.
Journal ArticleDOI
High-performance coherent optical modulators based on thin-film lithium niobate platform
Mengyue Xu,Mingbo He,Hongguang Zhang,Jian Jian,Ying Pan,Xiaoyue Liu,Lifeng Chen,Xiangyu Meng,Hui Chen,Zhaohui Li,Xi Xiao,Shaohua Yu,Siyuan Yu,Xinlun Cai +13 more
TL;DR: In this article, LiNiobate-on-insulator based in-phase/quadrature (IQ) electro-optic modulators are proposed for coherent transmission.
Journal ArticleDOI
Sub-hertz fundamental linewidth photonic integrated Brillouin laser
Sarat Gundavarapu,Grant M. Brodnik,Matthew W. Puckett,Taran Huffman,Debapam Bose,Ryan O. Behunin,Jianfeng Wu,Tiequn Qiu,Cátia Pinho,Nitesh Chauhan,Jim Nohava,Peter T. Rakich,Karl D. Nelson,Mary K. Salit,Daniel J. Blumenthal +14 more
TL;DR: In this paper, the authors demonstrate a sub-hertz (0.7) fundamental linewidth Brillouin laser in an integrated Si3N4 waveguide platform that translates advantages of non-integrated designs to the chip scale.
References
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TL;DR: The field of nonlinear fiber optics has advanced enough that a whole book was devoted to it as discussed by the authors, which has been translated into Chinese, Japanese, and Russian languages, attesting to the worldwide activity in the field.
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