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Spectral polarization-encoding of broadband laser pulses by optical rotatory dispersion and its applications in spectral manipulation |
| Xiaowei Lu(陆小微)1, Congying Wang(王聪颖)1, Xuanke Zeng(曾选科)1, Jiahe Lin(林家和)1, Yi Cai(蔡懿)1,†, Qinggang Lin(林庆钢)1, Huangcheng Shangguan(上官煌城)1, Zhenkuan Chen(陈振宽)1,2, Shixiang Xu(徐世祥)1, and Jingzhen Li(李景镇)1 |
1 Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China;
2 Collaborative Innovation Center for Optoelectronic Science and Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology(Ministry of Education), Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China |
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Abstract 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.
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Received: 08 February 2021
Revised: 04 March 2021
Accepted manuscript online: 23 March 2021
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PACS:
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78.47.J-
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(Ultrafast spectroscopy (<1 psec))
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42.25.Ja
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(Polarization)
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42.79.-e
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(Optical elements, devices, and systems)
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42.60.-v
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(Laser optical systems: design and operation)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 92050203, 62075138, 61827815, and 61775142) and Shenzhen Fundamental Research Project (Grant Nos. JCYJ20190808164007485, JCYJ20190808121817100, JSGG20191231144201722, and JCYJ20190808115601653). |
Corresponding Authors:
Yi Cai
E-mail: caiyi@szu.edu.cn
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Cite this article:
Xiaowei Lu(陆小微), Congying Wang(王聪颖), Xuanke Zeng(曾选科), Jiahe Lin(林家和), Yi Cai(蔡懿), Qinggang Lin(林庆钢), Huangcheng Shangguan(上官煌城), Zhenkuan Chen(陈振宽), Shixiang Xu(徐世祥), and Jingzhen Li(李景镇) Spectral polarization-encoding of broadband laser pulses by optical rotatory dispersion and its applications in spectral manipulation 2021 Chin. Phys. B 30 077801
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