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Raman Assisted Optical Processing fo...

Zheng, Bofang.

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Raman Assisted Optical Processing for High Speed Coherent Communication Systems.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Raman Assisted Optical Processing for High Speed Coherent Communication Systems./
作者:	Zheng, Bofang.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	194 p.
附註:	Source: Dissertation Abstracts International, Volume: 80-04(E), Section: B.
Contained By:	Dissertation Abstracts International80-04B(E).
標題:	Electrical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=11012270
ISBN:	9780438659728

Raman Assisted Optical Processing for High Speed Coherent Communication Systems.
Zheng, Bofang.

Raman Assisted Optical Processing for High Speed Coherent Communication Systems. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 194 p.

Source: Dissertation Abstracts International, Volume: 80-04(E), Section: B.

Thesis (Ph.D.)--The Chinese University of Hong Kong (Hong Kong), 2018.

The emerging high-bandwidth applications such as 5th generation wireless communication, data center and cloud computing, high definition video streaming and virtual reality demand tremendous capacity and unprecedented flexibility in the modern fiber optical communication networks. The advance in coherent communication technologies substantially drive broadband network evolution, delivering more than ten times network capacity enhancement and agile network management. However, an economical and low-latency network evolution are of equal importance. It is not trivial to achieve without thorough reflection from multiple perspectives, including but not limited to transmission media, optical amplifiers, optical transceivers, optical and digital signal processing.

ISBN: 9780438659728Subjects--Topical Terms:

649834
Electrical engineering.

Raman Assisted Optical Processing for High Speed Coherent Communication Systems.
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245 1 0 $a Raman Assisted Optical Processing for High Speed Coherent Communication Systems.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2018
300 $a 194 p.
500 $a Source: Dissertation Abstracts International, Volume: 80-04(E), Section: B.
502 $a Thesis (Ph.D.)--The Chinese University of Hong Kong (Hong Kong), 2018.
520 $a The emerging high-bandwidth applications such as 5th generation wireless communication, data center and cloud computing, high definition video streaming and virtual reality demand tremendous capacity and unprecedented flexibility in the modern fiber optical communication networks. The advance in coherent communication technologies substantially drive broadband network evolution, delivering more than ten times network capacity enhancement and agile network management. However, an economical and low-latency network evolution are of equal importance. It is not trivial to achieve without thorough reflection from multiple perspectives, including but not limited to transmission media, optical amplifiers, optical transceivers, optical and digital signal processing.
520 $a Parametric processing, which is based on Kerr effect in a highly nonlinear fiber, is widely explored in the past decade. Owing to the ultra-fast nature of Kerr effect, parametric processing can potentially operate at the line-rate of the fiber optical communication systems for signal processing. As a supplement to high-speed electronic signal processing, it is promising to benefit an energy-efficient, low-latency network. However, full exploitation of the parametric processing is frequently constrained by physical parameters in the setup, such as fiber length, nonlinearity, dispersion statistics, and parametric pump quality. Fortunately, Raman effect of the highly nonlinear fiber opens a door to deliver high-performance nonlinear processing. In the thesis, several advanced schemes with Raman-assisted parametric process are analyzed and demonstrated, with emphasis on the application for high-speed coherent communication systems.
520 $a We build up the coherent communication platform to investigate the applicability of Raman-assisted parametric processing. Digital signal processing algorithms are developed to handle the physical layer impairments including optical fiber chromatic dispersion, polarization demultiplexing, laser frequency and phase offset, and phase noise. In particular, we design block-wise carrier-phase recovery in the framework of variational Bayesian Kalman filter. The algorithm can recursively track the measurement noise to optimally estimate carrier evolution.
520 $a Parametric optical amplifier has been demonstrated offering broadband amplification and wavelength conversion beyond the current C/L bands. Here, Raman-assisted parametric optical amplifiers are investigated for improved linear amplification. By explicitly tracing full electrical field of each spectrum component, we rigorously identify that the evolution of phase relation among the signal, pump and idler can compensate the gain reduction caused by pump depletion, leading to the deferred presence of gain saturation. Experimentally, both the static characterization using a continuous-wave probe and dynamic characterization using a Nyquist-shaped 16-QAM signal validate the enhancement of dynamic range, showing the potential on parametric amplification of data signals in high-order modulation formats.
520 $a Phase-sensitive nature of parametric process has been exploited to combat with nonlinear distortion in data transmission. Here, an optical add-drop filter enabled by Raman-assisted phase-sensitive amplification is proposed, which can be an essential subsystem for data routing in optical links with in-line phase-sensitive amplifiers. The presence of Raman pump can augment the nonlinear interaction among the signal, parametric pump and idler to achieve a low-crosstalk add-drop filter.
520 $a Furthermore, we study Raman-assisted frequency comb generation in providing optical carriers for a coherent transmitter. Here, we propose an approach for optical comb generation based on repetition-rate multiplication and cross-phase modulation in a highly nonlinear fiber with relaxed bandwidth requirement of electro-optic components. Backward Raman pump can further enhance the cross-phase modulation, providing optimization of spectrum purity, comb bandwidth and conversion efficiency. We experimentally demonstrate the applicability of Raman-assisted frequency comb source in the coherent communication system.
590 $a School code: 1307.
650 4 $a Electrical engineering. $3 649834
650 4 $a Systems science. $3 3168411
650 4 $a Computer science. $3 523869
690 $a 0544
690 $a 0790
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710 2 $a The Chinese University of Hong Kong (Hong Kong). $b Electronic Engineering. $3 2094192
773 0 $t Dissertation Abstracts International $g 80-04B(E).
790 $a 1307
791 $a Ph.D.
792 $a 2018
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=11012270