Self-injection-locked thin-film regenerative laser amplifier

被引：0
作者：
Liu, Yue [1 ]
Wu, Wenwen [1 ]
Zhang, Xinping [1 ]
机构：
[1] Beijing Univ Technol, Inst Informat Photon Technol, Beijing 100124, Peoples R China
来源：
ISCIENCE | 2024年 / 27卷 / 05期
基金：
中国国家自然科学基金;
关键词：
ORGANIC LASERS; PHASE;
D O I：
10.1016/j.isci.2024.109426
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Organic lasers based on distributed feedback (DFB) microcavities have been extensively investigated. However, the application of these lasers is limited by their low output power and large beam divergence. Therefore, laser amplifiers are needed to achieve practically applicable laser intensity and controllable lasing modes for far -field applications. In this work, we report self -injection -locked laser amplifiers using the combination of a DFB microcavity and a Bragg reflector, where a high -reflection mirror acts as the Bragg reflector and its feedback supplies the external -cavity injection. The coherent coupling between the DFB microcavity and the Bragg amplifier is crucial for achieving high conversion efficiency and highcontrast transverse modes. An amplification factor larger than 20 and a single output laser spot with high contrast that has been achieved. Such an integration design of the self -injected DFB microcavity amplifier can be directly utilized in the realization of high-performance thin-film laser sources for practical applications.
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页数：11
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