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高增益,低差分模式增益和低增益平度的详细表征集成的FM-EDFA用于多波长放大
Optics express
|November 14, 2024
概括
这项研究介绍了一种用于多波长放大的几模辅助纤维放大器 (FM-EDFA). 新型FM-EDFA实现了高增益和低差分模式增益 (DMG),这对于WDM-MDM系统至关重要.
科学领域:
- 光学工程是指光学工程.
- 电信技术 电信技术 电信技术
- 光纤光学是指光纤的使用.
背景情况:
- 少数模式光纤放大器对于增加数据传输能力至关重要.
- 同时实现高收益和低差分模式收益 (DMG) 是一个重大挑战.
- 现有的放大器经常在多波长场景中与增益平坦度和模态交叉声交叉斗争.
研究的目的:
- 构建和描述一个集成的少数模式的辅助纤维放大器 (FM-EDFA).
- 分析FM-EDFA用于多波长放大功率的增强特性.
- 为了证明FM-EDFA在远程WDM-MDM传输系统中的实际应用性.
主要方法:
- 制造一种自制的弱合环芯少数模式合纤维 (FM-EDF).
- 将FM-EDF与低插入损失的被动元件集成,以创建FM-EDFA.
- 在多波长放大条件下,对增强特征的详细分析,包括差分模态增强 (DMG) 和增强平度.
主要成果:
- 构建的FM-EDFA在放大8个波长频道时,在所有引导模式中实现了超过22.4dB的增益.
- 不同模式增益 (DMG) 低于1.179dB,在C频段的最低值为0.168dB.
- 波长增益平度小于3.232dB,而DMG在三信号模式复杂化时稳定在2dB以下.
结论:
- 开发的FM-EDFA有效地实现了在C频段的多波长放大中获得等效.
- 放大器表现出高增益,低DMG和良好的增益平度,性能优于以前的设计.
- 这项技术在长途波长分割多重复合模式分割多重复合 (WDM-MDM) 传输系统中的性能提升方面具有显著的前景.
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