Liu Xueming, Cui Yudong
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China.
Sci Rep. 2015 Mar 24;5:9399. doi: 10.1038/srep09399.
Controlled flexible pulses have widespread applications in the fields of fiber telecommunication, optical sensing, metrology, and microscopy. Here, we report a compact pulse-controlled all-fiber laser by exploiting an intracavity fiber Bragg grating (FBG) system as a flexible filter. The width and wavelength of pulses can be tuned independently by vertically and horizontally translating a cantilever beam, respectively. The pulse width of the laser can be tuned flexibly and accurately from ~7 to ~150 ps by controlling the bandwidth of FBG. The wavelength of pulse can be tuned precisely with the range of >20 nm. The flexible laser is precisely controlled and insensitive to environmental perturbations. This fiber-based laser is a simple, stable, and low-cost source for various applications where the width-tunable and/or wavelength-tunable pulses are necessary.
可控灵活脉冲在光纤通信、光学传感、计量学和显微镜学等领域有着广泛的应用。在此，我们报道了一种紧凑型脉冲控制全光纤激光器，它利用腔内光纤布拉格光栅（FBG）系统作为灵活滤波器。通过分别垂直和水平移动悬臂梁，可以独立调节脉冲的宽度和波长。通过控制FBG的带宽，激光器的脉冲宽度可以在约7至约150皮秒范围内灵活精确地调谐。脉冲波长可以在大于20纳米的范围内精确调谐。这种灵活激光器受到精确控制，并且对环境扰动不敏感。这种基于光纤的激光器是一种简单、稳定且低成本的光源，适用于各种需要宽度可调谐和/或波长可调谐脉冲的应用。
