Long-period fiber gratings as band-rejection filters
Long-period fiber gratings as band-rejection filters
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DOI：
10.1364/ofc.1995.pd4
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发表时间：
1995-02
期刊：
影响因子：
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通讯作者：
A. Vengsarkar;P. Lemaire;J. Judkins;V. Bhatia;T. Erdogan;J. Sipe
中科院分区：
文献类型：
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作者：
A. Vengsarkar;P. Lemaire;J. Judkins;V. Bhatia;T. Erdogan;J. Sipe
使用光放大器的光纤通信系统越来越多地寻求充当光谱选择性带阻滤波器的高性能器件。例如，提高铒放大器性能的 ASE 滤波器和拉曼激光器/放大器1中的带阻滤波器必须具有低插入损耗和低背向反射。此外，它们的批量生产必须相对便宜，并且包装后应该紧凑。虽然体光学滤波器和短周期布拉格光栅2、3可用于某些应用，但很少满足所有上述要求。在本文中，我们提出了一类新型光致长周期光纤光栅，其用作高效带阻滤波器。
Optical fiber communication systems that use optical amplifiers are increasingly seeking high-performance devices that function as spectrally-selective band-rejection filters. For example, ASE filters that improve erbium amplifier performance and band-rejection filters in Raman lasers/amplifiers1 must have low insertion losses and low back-reflections. In addition, they must be relatively inexpensive to mass-produce and should be compact after packaging. While bulk-optic filters and short-period Bragg gratings2,3 can be used for some of the applications, all the aforementioned requirements are rarely met. In this paper, we present a novel class of photoinduced, long-period fiber gratings that function as highly-efficient band-rejection filters.