Hong Zhang, Nihui Zhang, Di Xin, Hongkun He, Jianghao Xu, Xuyan Zhou, Wanhua Zheng, Hongbo Zhang
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引用次数: 0
Abstract
Due to the low output energy of the passively Q-switched laser, a challenge is to achieve an efficient stimulated Raman generation via a passively Q-switched laser pumping strategy, especially the generation of a Raman laser at 1.5 µm. In this paper, the first-order Raman laser at 1525 nm was successfully demonstrated through a passively Q-switched Nd:YVO4/V:YAG excitation with a compact and an easily integrable structure. The pulse energy at 1525 nm could be up to 17.6 µJ at 1 kHz repetition rate with a pulse duration of 6.2 ns. The corresponding optical efficiency was 23%, and the measured beam quality factor M2 < 1.3. Raman lasers operating at 1.5 µm have important applications in fields such as optical communication, laser scanning, distance measurement, remote sensing, and spectral analysis.
期刊介绍：
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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