在Brillouin随机光纤激光器中通过定制增益和随机反纤维来控制可控的激光特性
Optics express
|June 14, 2025
概括
控制Brillouin随机光纤激光器 (BRFL) 涉及调整刺激的Brillouin散射 (SBS) 增益和随机反纤维. 优化的BRFL显示了对先进应用的稳定性,连贯性和效率的提高.
科学领域:
- 光子学和激光技术的发展
- 光纤通讯是指光纤通讯的一种方式.
- 材料科学 材料科学 材料科学
背景情况:
- 布里卢因随机光纤激光器 (BRFL) 将刺激的布里卢因散射 (SBS) 增益与随机分布式反相结合,用于窄线宽激光.
- 了解和控制BRFL激光机制对于其更广泛的采用和应用至关重要.
- 关键的操作参数包括线宽,稳定性,连贯时间和激光效率.
研究的目的:
- 通过操纵SBS增益纤维和随机反纤维来证明BRFL中激光特征的控制.
- 研究不同反机制 (随机纤维网格与雷利散射纤维) 对BRFL性能的影响.
- 优化BRFL设计,以提高频率稳定性和长时间连贯性.
主要方法:
- 使用5厘米随机纤维网格 (RFG) 与6公里雷利散射纤维 (RSF) 进行反的BRFLs的实验比较.
- 评估BRFLs具有不同的RFG随机性和增益纤维长度.
- 激光特征的分析,包括强度波动,连贯时间,频率稳定性,激光效率和值.
主要成果:
- 与RSF反相比,带有RFG反的BRFL表现出更高的性能 (强度波动较低,连贯时间较长,频率更稳定).
- 低随机性的RFG反进一步增强了连贯时间,减少了强度波动.
- 优化的配置 (高增益纤维,强散射射频反,减少增益纤维长度) 导致了高激光效率,低值,并改善了频率动和强度噪声.
结论:
- 定制SBS增益纤维和随机反纤维的特性显著影响BRFL激光特性.
- 对于在BRFL中实现稳定和连贯的lasing,RFG比RSF提供了优势.
- 这些发现为设计和优化BRFL提供了关键的见解,用于要求高频稳定性和长时间连贯性的应用.
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