Design of tapered adiabatic coupler with discretionary power dividing ratio

Li Di1; Ma Weidong1

doi:10.13756/j.gtxyj.2011.04.007

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Design of tapered adiabatic coupler with discretionary power dividing ratio

- Design of tapered adiabatic coupler with discretionary power dividing ratio
- Study on Optical communication Issue 4, Pages: 26-28(2011)
- 作者机构：
  
  1. 光纤通信技术和网络国家重点实验室
  2. 光迅科技股份有限公司
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2011.04.007
  CLC： TN622
- Published：2011，
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[1]李迪,马卫东.基于渐变结构任意分光比绝热耦合器的设计[J].光通信研究,2011(04):26-28+35.

Li Di1, Ma Weidong1. Design of tapered adiabatic coupler with discretionary power dividing ratio. [J]. (4):26-28(2011)
[1]李迪,马卫东.基于渐变结构任意分光比绝热耦合器的设计[J].光通信研究,2011(04):26-28+35. DOI： 10.13756/j.gtxyj.2011.04.007.

Li Di1, Ma Weidong1. Design of tapered adiabatic coupler with discretionary power dividing ratio. [J]. (4):26-28(2011) DOI： 10.13756/j.gtxyj.2011.04.007.

摘要

文章基于光波导局部标准模式耦合理论

设计了一种平面光波导（PLC）型渐变结构任意分光比的光功率分配器

并利用束传播方法（BPM）进行模拟

分析了分光比为50/50、20/80和5/95这3种情况下器件的性能。这种耦合器在耦合长度1

mm的范围内可以实现任意分光比

相对于PLC型定向耦合器具有更大的带宽和更大的工艺容差

在实际生产中更容易实现。

Abstract

On the basis of the coupled theory of local normal optical waveguide modes

we design a Planar Lightwave Circuit（PLC）-type tapered adiabatic coupler with discretionary power dividing ratio for 1.550 μm wavelength.Then

we conduct simulation in Beam Propagation Method（BPM） and analyze its performances when the dividing ratio is 50/50

20/80 or 5/95.The results show that this coupler can realize arbitrary dividing ratios when the coupled length is in the range of 1

mm.Compared with the PLC-type directional coupler

this coupler has larger bandwidth and process tolerance

so easier to be manufactured.

关键词

绝热耦合器局部标准模式任意分光比工艺容差

Keywords

adiabatic couplerlocal normal modediscretionary power dividing ratioprocess tolerance.

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