Spectral polarization-encoding of broadband laser pulses by optical rotatory dispersion and its applications in spectral manipulation

• 作者: Xiaowei Lu Congying Wang Xuanke Zeng Jiahe Lin Yi Cai Qinggang Lin Huangcheng Shangguan Zhenkuan Chen Shixiang Xu Jingzhen Li
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC,AND OPTICAL PROPERTIES
• 页码范围: 634-640
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1056/abf0fb

摘要

We propose a kind of spectral polarization-encoding (SPE) for broadband light pulses,which is realized by inducing optical rotatory dispersion (ORD),and decoded by compensating ORD.Combining with polarization-sensitive devices,SPE can not only work to control polarization-dependent transmission for central wavelength or bandwidth-tunable filtering,but also can be used for broadband regenerative or multi-pass amplification with a polarization-dependent gain medium to improve output bandwidth.SPE is entirely passive thus very simple to be designed and aligned.By using an ORD crystal with a good transmission beyond 3-μm mid-infrared region,e.g.,AgGaS2,SPE promises to be applied for the wavelength tuning lasers in mid-infrared region,where the tunning devices are rather under developed compared with those in visible and near-infrared region.