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Influence of the zero dispersion wavelength fluctuation on the gain and noise performance in dual-pump fiber parametric amplifiers

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Optoelectronics Letters 2010年第5期6卷 367-370页

作者：刘小霞忻向军苑金辉刘喜卿桑新柱余重秀 Key Laboratory of Information Photonics and Optical Communications Ministry of Education Beijing University of Posts and Telecommunications

Because of the zero dispersion wavelength (ZDWL) random fluctuations, the gain and noise figures deteriorate in optical parametric amplifiers based on highly nonlinear fibers (HNLFs). The detrimental role of ZDWL fluctuations on the gain and noise performance in dual-pump fiber optical parametric amplifiers (FOPAs) is presented. Numerical investigations of noise figure (NF) for different fibers with random fluctuation are analyzed. The noise figures for different fibers are varying even if the random fluctuation is small. Through choosing HNLFs with low ZDWL fluctuation and large nonlinear coefficient, high-gain and low-noise performance can be obtained.

关键词：高非线性光纤光参量放大器放大器增益低噪声性能随机波动零色散波长双波长度量

Simulation investigation on supercontinuum generation and noise characteristics in the normal dispersion photonic crystal fiber with a flattened dispersion profile

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Optoelectronics Letters 2010年第3期6卷 172-175页

作者：李恒瑞桑新柱苑金辉王葵如余重秀 Key Laboratory of Information Photonics and Optical Communications Ministry of EducationBeijing University of Posts and Telecommunications

The propagation of picosecond pulses in the normal dispersion photonic crystal fiber(PCF) with a flattened dispersion profile is numerically *** characteristics of the amplitude and phase noise in the supercontinuum generation(SCG) are also analyzed through the coherent sliced supercontinuum(SC).The effects of self-phase modulation(SPM) and four-wave mixing(FWM) on broadening of the pulse spectrum are presented,and the best amplitude and phase noise performance with a specific fiber length is *** SCG in the wavelength range of 1475 to 1625 nm has only fluctuation between ±1.5 dB,and both the amplitude and phase noise caused by the intensity noise of the input power is below 2.5% in the range of 1500 to 1600 nm.

关键词：光子晶体光纤超连续谱正常色散色散平坦噪声特性模拟相位噪声皮秒脉冲

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基于PCF非线性实现短波信号源的研究

基于PCF非线性实现短波信号源的研究

Investigation on noise characteristics of dual-pumped fiber optical parametric amplifiers based on photonic crystal fibers

光纤材料产业技术创新战略联盟（试点）推进暨学术研讨会

作者：苑金辉余重秀颜玢玢桑新柱王葵如信息光子学与光通信国家重点实验室北京邮电大学

利用光子晶体光纤(PCF)实现短波信号源的研究,包括反斯托克斯信号波长可调节、高效转换的实现和可见光波段高效、宽带的切伦科夫辐射的产生,这些研究结果有助于实现超快光子学中新型光器件的发展与及应用、提供短波通信系统中性能良好... 详细信息

利用光子晶体光纤(PCF)实现短波信号源的研究,包括反斯托克斯信号波长可调节、高效转换的实现和可见光波段高效、宽带的切伦科夫辐射的产生,这些研究结果有助于实现超快光子学中新型光器件的发展与及应用、提供短波通信系统中性能良好的光源。

关键词：光子晶体光纤(PCF) 反斯托克斯信号切伦科夫辐射(CRs)

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Optoelectronics Letters 2010年第3期6卷 168-171页

作者：凌婧桑新柱苑金辉王葵如余重秀忻向军徐玮 Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and Telecommunications

The noise characteristics of dual-pumped fiber optical parametric amplifiers(FOPAs) induced by gain and loss in photonic crystal fibers(PCFs) are analyzed.A special photonic crystal fiber is *** noise figure(NF) changes with structure parameters,and it decreases as the hole diameter *** factors including input-signal power,signal wavelength and pump separation which impact on the final noise figure are discussed with the designed PCF.

关键词：光子晶体光纤光纤参量放大器噪声特性泵浦基础噪声系数信号功率噪声放大器

Influence of Raman effect on the noise characteristics in a dual pump FOPA

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Optoelectronics Letters 2011年第6期7卷 447-450页

作者：程晓鹏余重秀邓云逸桑新柱苑金辉饶岚 State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and Telecommunications

Influence induced by Raman effect on the noise characteristics of a depleted and lossy dual pump fiber optical parametric amplifier （FOPA） is investigated. Taking the Raman effect into account, the modified coupled amplitude equations are fh-stly built, then the influences of Raman effect on the Stokes and anti-Stokes wavelengths with different initial signal powers are further analyzed. Besides, the effect on the FOPA gain is also shown with the same initial signal power and constant noise figure （NF）.

关键词： Light amplifiers Optical pumping Parametric amplifiers

Investigation on gain characteristics in non-degenerate cascaded phase sensitive parametric amplifiers

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Optoelectronics Letters 2012年第3期8卷 172-175页

作者：饶岚余重秀申向伟桑新柱苑金辉曾小芳忻向军 School of Electronic Engineering Beijing University of Posts and Telecommunications Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and Telecommunications

We theoretically and experimentally show the impact of the ratio between the signal and idler generated from the PIA part on the gain characteristics in the continuous wave (CW) pump non-degenerate cascaded phase-sensitive fiber optical parametric amplifier (PS-FOPA). The results show that the length of highly nonlinear fiber (HNLF) used for generating the idler can cause the variation of power ratio between the idler and signal, which significantly affects the gain characteristics of the PS-FOPA under the small signal gain condition. To obtain high gain, it is better to choose long HNLF to generate idler. In our experiment, 5.5 dB gain and 18 nm bandwidth (on/off gain>10 dBm) in PS-FOPA can be achieved when 300 m-long HNLF instead of 200 m-long HNLF is used in PIA.

关键词： Light amplifiers Nonlinear optics Parametric amplifiers

高非线性高双折射光子晶体光纤特性的理论研究

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中国激光 2012年第11期39卷 53-58页

作者：李德月周桂耀夏长明刘建涛苑金辉侯蓝田燕山大学红外光纤与传感研究所河北秦皇岛066004 燕山大学亚稳材料制备科学与技术国家重点实验室河北秦皇岛066004 华南师范大学微纳光子功能材料与器件重点实验室广东广州510006

基于全矢量有限元法,设计了一种新型零色散波长为1550nm的高非线性双折射光子晶体光纤(PCF),并分析了PCF的有效折射率、有效模面积、双折射、非线性系数以及色散特性。数值结果表明,当光纤包层孔间距Λ为1.6μm,大空气孔直径d1为1.4μm... 详细信息

基于全矢量有限元法,设计了一种新型零色散波长为1550nm的高非线性双折射光子晶体光纤(PCF),并分析了PCF的有效折射率、有效模面积、双折射、非线性系数以及色散特性。数值结果表明,当光纤包层孔间距Λ为1.6μm,大空气孔直径d1为1.4μm,小空气孔直径d2为0.74μm和0.76μm时,光纤的零色散波长都在1550nm处,该PCF的双折射为4.049×10-3,非线性系数可达28.4km-1·W-1。这种高非线性高双折射PCF,在1550nm通信波段具有非常广泛的应用前景。

关键词：光纤光学光子晶体光纤高非线性高双折射有限元法

Theoretical investigation of band-gap and mode characteristics of anti-resonance guiding photonic crystal fibres

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Chinese Physics B 2011年第2期20卷 302-310页

作者：苑金辉桑新柱余重秀忻向军张锦龙周桂耀李曙光侯蓝田 Key Laboratory of Information Photonics and Optical Communications (BUPT) Ministry of Education Institute of Optical Communication and Optoelectronics Beijing University of Posts and Telecommunications Institute of Infrared Optical Fibres and Sensors College of Information Science and EngineeringYanshan University

With the full-vector plane-wave method （FVPWM） and the full-vector beam propagation method （FVBPM）, the dependences of the band-gap and mode characteristics on material index and cladding structure parameter in anti- resonance guiding photonic crystal fibres （ARGPCFs） are sufficiently analysed. An ARGPCF operating in the near- infrared wavelength is shown. The influences of the high index cylinders, glass interstitial apexes and silica structure on the characteristics of band-gaps and modes are deeply investigated. The equivalent planar waveguide theory is used for analysing such an ARGPCF filled by the isotropic materials, and the resonance and the anti-resonance characteristics r：~n h~ w~｜] r^r~dlrtpd

关键词： anti-resonance guiding photonic crystal fibres full-vector plane-wave method full-vector beam propagation method band-gap and mode characteristics

60 GHz OCS mm-wave generation for ROF system based on saturated parametric amplification effect in HNLF

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Optoelectronics Letters 2010年第6期6卷 443-445页

作者：李温静桑新柱苑金辉王葵如余重秀忻向军 Key Laboratory of Information Photonics and Optical Communications Ministry of EducationInstitute of Information Photonics and Optical CommunicationsBeijing University of Posts and Telecommunications School of Electronic Engineering Beijing University of Posts and Telecommunications

A novel approach to generate 60 GHz optical carrier suppression(OCS) millimeter-wave(mm-wave) signal based on the saturated optical parametric amplification(OPA) effect in high non-linear fiber(HNLF) is *** the proposed system,the OPA effect occurs when the signal and pump with 30 GHz frequency interval are set into the high non-linear *** controlling the length of HNLF,OPA effect saturates,and the pump power is delivered in a large extent to the signal and idler light,so a 60 GHz OCS mm-wave is *** system does not need high-speed external modulator,high-frequency vibration source or narrow-band filter,which greatly reduces the cost and improves the stability of the radio over fiber(ROF) *** show that the 10 Gb/s downstream signal can be transmitted with negligible power penalty.

关键词：饱和效应毫米波 F系统 GHz OCS 放大效应高非线性光纤泵浦功率