Institute of Information Photonics Technology and College of Applied Sciences, Beijing University of Technology, Beijing 100124, P. R. China.
Nanoscale. 2017 Feb 23;9(8):2689-2694. doi: 10.1039/c6nr09973d.
Injection mode locking is an important technique to achieve high-performance laser sources. Although this technique has been utilized in conventional laser systems, it has not been applied in thin-film distributed feedback lasers based on nanoscale photonic structures. We demonstrate an ultrafast injection-locked amplifier by injecting femtosecond supercontinuum pulses into a polymer-coated DFB microcavity. The amplifier works in the time scale of picoseconds and a bandwidth of 1 nm, supplying an easily recollimatable laser beam with excellent transverse mode. This introduces a miniaturized and easily integratable laser device for both near-field and far-field applications.
注入锁模是实现高性能激光源的一项重要技术。虽然这项技术已经在传统的激光系统中得到了应用，但尚未应用于基于纳米光子结构的薄膜分布式反馈激光器。我们通过将飞秒超连续脉冲注入聚合物覆盖的 DFB 微腔，演示了一种超快注入锁定放大器。该放大器在皮秒时间尺度和 1nm 的带宽下工作，提供了易于重新准直的激光束，具有出色的横模。这为近场和远场应用引入了一种小型化、易于集成的激光器件。
