掺铒光波导放大器的理论与设计
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摘要
随着光纤通信和集成光电子学的发展，掺铒光波导放大器成为了光纤
通信与光电子学领域研究和应用的热点。本文的研究工作针对光波导放大
器的光学特性与参数设计而展开。
本文首先介绍了光纤与光波导放大器的历史发展过程和近年来的新成
果，以及该器件的特点。对无源介质平板波导和矩形光波导的传输模式进
行了计算，给出了光强分布和导模方程，在此基础上针对光波导放大器的
要求优化设计了矩形波导的结构参数。具体分析了铒光波导的光学特性以
及三种泵浦波长（980nm、1480nm、820nm）对铒光波导放大器性能的影
响，针对三种泵浦波长给出了具体的速率方程和增益计算方程。计算并分
析了放大器增益与波导长度、掺铒浓度、泵浦功率的关系，以及激发态吸
收和合作上转换对放大器增益的影响，并进行了铒浓度、波导长度和泵浦
功率的优化设计。为掺铒光波导放大器的制作提供了理论依据和参数。
论文最后作了总结，并对掺铒光波导放大器的应用做了说明。
With the development of optical fiber communication and integrated
optoelectronics, Er3~-doped optical waveguide amplifier (EDWA) becomes the
hotspot of study and application in the field of optical fiber communication
and optoelectronics. The purpose of the paper is to study the optical
characteristics and parameter design of EDWA.
Firstly, the paper introduces the historical developments, the new
achievements, and the main points of EDFA and EDWA in the field of optical
fiber and waveguide amplifier in recent years, . According to Maxwell
equations, We calculate the propagating mode of the passive medium planar
waveguide and rectangle waveguide. Light-intensity distribution and guide-
mode equations are presented in detail. According to the equations, We design
the optimum geometry structure parameters of rectangle wave-guide based on
requirement of EDWA. We analyze concretely optical characteristics of Er3~-
doped optical waveguide as well as the effects of three different pumping
wavelengths (980nm, 1480nm, and 820nm) on the performance of EDWA. The
4
rate equations and propagating equations are presented respectively according
to different pumping wavelength. We calculate signal gains of three kinds of
pumping wavelength, and analyze the relations of amplifier gains versus
waveguide length, Er3~-doped concentration and input-pumping power, and
explain the effects by their existing 桬SA(excitated state absorption) and
CUP(cooperative upconversion processes). The optimum Er3~-doped
concentration. waveguide length and pumping power are presented. These data
provide theoretical reference and practical parameters.
At the end of the paper I summarize some of the theory and prospect the
application of ED WA.
通信与光电子学领域研究和应用的热点。本文的研究工作针对光波导放大
器的光学特性与参数设计而展开。
本文首先介绍了光纤与光波导放大器的历史发展过程和近年来的新成
果，以及该器件的特点。对无源介质平板波导和矩形光波导的传输模式进
行了计算，给出了光强分布和导模方程，在此基础上针对光波导放大器的
要求优化设计了矩形波导的结构参数。具体分析了铒光波导的光学特性以
及三种泵浦波长（980nm、1480nm、820nm）对铒光波导放大器性能的影
响，针对三种泵浦波长给出了具体的速率方程和增益计算方程。计算并分
析了放大器增益与波导长度、掺铒浓度、泵浦功率的关系，以及激发态吸
收和合作上转换对放大器增益的影响，并进行了铒浓度、波导长度和泵浦
功率的优化设计。为掺铒光波导放大器的制作提供了理论依据和参数。
论文最后作了总结，并对掺铒光波导放大器的应用做了说明。
With the development of optical fiber communication and integrated
optoelectronics, Er3~-doped optical waveguide amplifier (EDWA) becomes the
hotspot of study and application in the field of optical fiber communication
and optoelectronics. The purpose of the paper is to study the optical
characteristics and parameter design of EDWA.
Firstly, the paper introduces the historical developments, the new
achievements, and the main points of EDFA and EDWA in the field of optical
fiber and waveguide amplifier in recent years, . According to Maxwell
equations, We calculate the propagating mode of the passive medium planar
waveguide and rectangle waveguide. Light-intensity distribution and guide-
mode equations are presented in detail. According to the equations, We design
the optimum geometry structure parameters of rectangle wave-guide based on
requirement of EDWA. We analyze concretely optical characteristics of Er3~-
doped optical waveguide as well as the effects of three different pumping
wavelengths (980nm, 1480nm, and 820nm) on the performance of EDWA. The
4
rate equations and propagating equations are presented respectively according
to different pumping wavelength. We calculate signal gains of three kinds of
pumping wavelength, and analyze the relations of amplifier gains versus
waveguide length, Er3~-doped concentration and input-pumping power, and
explain the effects by their existing 桬SA(excitated state absorption) and
CUP(cooperative upconversion processes). The optimum Er3~-doped
concentration. waveguide length and pumping power are presented. These data
provide theoretical reference and practical parameters.
At the end of the paper I summarize some of the theory and prospect the
application of ED WA.
引文
[1]G. N. van den Hoven etc., Appl. Phys. Lett., 1996, 68(14): 1886.
[2]Fabrizio Di Pasquale, J. Of Lightwave Technology, 1993,11(10): 1565.
[3]Steven P. Bastien etc., IEEE Photonics Technology Letters, 1991, 3(5):456.
[2]Fabrizio Di Pasquale, J. Of Lightwave Technology, 1993,11(10): 1565.
[3]Steven P. Bastien etc., IEEE Photonics Technology Letters, 1991, 3(5):456.