非连续线性啁啾取样布拉格光栅型多信道光纤滤波器的设计

涂兴华; 刘逢清; 徐 宁

doi:10.3788/OPE.20101809.1965

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非连续线性啁啾取样布拉格光栅型多信道光纤滤波器的设计

现代应用光学 | 更新时间：2020-08-12

- 非连续线性啁啾取样布拉格光栅型多信道光纤滤波器的设计
- Design of high channel-count optical fiber filters based on sampled Bragg grating with discrete linear chirp structure
- 光学精密工程 2010年18卷第9期页码：1965-1971
- 作者机构：
  
  南京邮电大学光电工程学院微流控光学技术研究中心,江苏南京 210046
- 作者简介：
- 基金信息：
  
  南京邮电大学引进人才科研启动基金资助课题(No.NY207026)();江苏省高校自然科学基金资助项目(No.TZ208014)()
- DOI：10.3788/OPE.20101809.1965
  中图分类号： TN253;TN929.11
- 收稿日期：2010-07-19，
  
  修回日期：2010-07-26，
  
  网络出版日期：2010-09-29，
  
  纸质出版日期：2010-09-20
- 稿件说明：
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涂兴华, 刘逢清, 徐宁. 非连续线性啁啾取样布拉格光栅型多信道光纤滤波器的设计[J]. 光学精密工程, 2010,18(9): 1965-1971

TU Xing-hua, LIU Feng-qing, XU Ning. Design of high channel-count optical fiber filters based on sampled Bragg grating with discrete linear chirp structure[J]. 光学精密工程, 2010,18(9): 1965-1971
涂兴华, 刘逢清, 徐宁. 非连续线性啁啾取样布拉格光栅型多信道光纤滤波器的设计[J]. 光学精密工程, 2010,18(9): 1965-1971 DOI： 10.3788/OPE.20101809.1965.

TU Xing-hua, LIU Feng-qing, XU Ning. Design of high channel-count optical fiber filters based on sampled Bragg grating with discrete linear chirp structure[J]. 光学精密工程, 2010,18(9): 1965-1971 DOI： 10.3788/OPE.20101809.1965.

摘要

介绍了一种基于取样布拉格光纤光栅获得多信道光纤滤波器的方法。通过设计一种非连续阶梯型啁啾取样的布拉格光栅结构

可以分别实现单个信道宽度为50

100和200 GHz的光纤滤波器。光纤滤波器的每个信道的宽度几乎完全相同

具有平顶、峭沿和高透射率特点

相邻信道间隔离深度超过28 dB

平均插入损失不超过0.1 dB

3 dB带宽内相位响应起伏在5~30 ps。利用介绍的方法制作具有相应非连续线性啁啾系数的全息相位掩模板

易于制作

成本低

重复性好。通过改变相应的光纤光栅参数

可以实现不同信道宽度的

性能稳定、可重复性高的光纤滤波器

在高速光通信系统以及光互连中有着非常好的应用前景。

Abstract

A novel approach to obtain multi-channel comb filters with various channel bandwidths is presented based on a sampled Bragg grating. A kind of high-channel-count comb filter with channel spacings of 50 GHz

100 GHz and 200 GHz is then fabricated respectively by design of a discrete-chirped sampled Bragg grating structure like a ladder in grating period. This kind of optical fiber filter is characterized by multiple equalized bands with flat-top steep-edge and high transmittance and its inter-channel isolation is more than 28 dB

in-band insertion loss is less than 0.1 dB and phase response is between 5~30 ps in the 3 dB bandwidth. By using proposed approach

the holographic phase mask with discrete-chirped coefficients can be easily prepared in low costs and good repetition. Furthermore

by changing the optical fiber parameters

the optical fiber filters with different channel bandwidths can be implemented in high stability and repetition

which has a good potential in the high-speed optical communication systems and optical interconnects.

关键词

Keywords

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