120 kHz重复频率1.6 μm窄谱线宽多瓦金刚石拉曼激光器

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-05-10 DOI:10.1016/j.optlastec.2025.113157

Houjie Ma , Xiaobo Mi , Jiuru He , Fengying Ma , Xun Yang , Yuan Zhang , Liwen Cheng , Yongsheng Hu , Chongxin Shan

{"title":"120 kHz重复频率1.6 μm窄谱线宽多瓦金刚石拉曼激光器","authors":"Houjie Ma , Xiaobo Mi , Jiuru He , Fengying Ma , Xun Yang , Yuan Zhang , Liwen Cheng , Yongsheng Hu , Chongxin Shan","doi":"10.1016/j.optlastec.2025.113157","DOIUrl":null,"url":null,"abstract":"<div><div>We demonstrated a high repetition rate, narrow spectral linewidth, and multi-watt actively Q-switched diamond Raman laser (DRL) at 1634 nm. A strategy of dual Nd:YVO<sub>4</sub> crystal and increasing the Q-switch duty cycle was proposed to improve the population inversion and alleviate the thermal effects in the crystal simultaneously, leading to a 1342 nm fundamental laser with both a high output power (11 W) and repetition rate (50 kHz). By further designing a short Raman cavity and optimizing the duty cycle, a 1634 nm ns-pulsed DRL with a repetition rate ≥ 120 kHz and an output power of 5.2 W was achieved. The DRL also exhibited an excellent single longitudinal mode characteristic with a spectral linewidth of ∼ 28 MHz at operational power up to 2 W and a beam quality with M<sup>2</sup> < 1.4.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"189 ","pages":"Article 113157"},"PeriodicalIF":4.6000,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"120 kHz repetition rate narrow spectral linewidth multi-watt diamond Raman laser at 1.6 μm\",\"authors\":\"Houjie Ma , Xiaobo Mi , Jiuru He , Fengying Ma , Xun Yang , Yuan Zhang , Liwen Cheng , Yongsheng Hu , Chongxin Shan\",\"doi\":\"10.1016/j.optlastec.2025.113157\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>We demonstrated a high repetition rate, narrow spectral linewidth, and multi-watt actively Q-switched diamond Raman laser (DRL) at 1634 nm. A strategy of dual Nd:YVO<sub>4</sub> crystal and increasing the Q-switch duty cycle was proposed to improve the population inversion and alleviate the thermal effects in the crystal simultaneously, leading to a 1342 nm fundamental laser with both a high output power (11 W) and repetition rate (50 kHz). By further designing a short Raman cavity and optimizing the duty cycle, a 1634 nm ns-pulsed DRL with a repetition rate ≥ 120 kHz and an output power of 5.2 W was achieved. The DRL also exhibited an excellent single longitudinal mode characteristic with a spectral linewidth of ∼ 28 MHz at operational power up to 2 W and a beam quality with M<sup>2</sup> < 1.4.</div></div>\",\"PeriodicalId\":19511,\"journal\":{\"name\":\"Optics and Laser Technology\",\"volume\":\"189 \",\"pages\":\"Article 113157\"},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2025-05-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Optics and Laser Technology\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0030399225007480\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics and Laser Technology","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0030399225007480","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPTICS","Score":null,"Total":0}

引用次数: 0

摘要

我们展示了高重复率、窄谱线宽度和多瓦主动调q金刚石拉曼激光器（DRL），波长为1634 nm。提出了双Nd:YVO4晶体和增加q开关占空比的策略，以改善晶体内的居群反转，同时减轻晶体内的热效应，从而获得高输出功率（11 W）和高重复频率（50 kHz）的1342 nm基频激光器。通过进一步设计短拉曼腔并优化占空比，实现了重复频率≥120 kHz、输出功率为5.2 W的1634 nm ns脉冲DRL。DRL还表现出优异的单纵向模式特性，在工作功率高达2w时，谱线宽度为~ 28 MHz，光束质量为M2 <；1.4.

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

120 kHz repetition rate narrow spectral linewidth multi-watt diamond Raman laser at 1.6 μm

We demonstrated a high repetition rate, narrow spectral linewidth, and multi-watt actively Q-switched diamond Raman laser (DRL) at 1634 nm. A strategy of dual Nd:YVO₄ crystal and increasing the Q-switch duty cycle was proposed to improve the population inversion and alleviate the thermal effects in the crystal simultaneously, leading to a 1342 nm fundamental laser with both a high output power (11 W) and repetition rate (50 kHz). By further designing a short Raman cavity and optimizing the duty cycle, a 1634 nm ns-pulsed DRL with a repetition rate ≥ 120 kHz and an output power of 5.2 W was achieved. The DRL also exhibited an excellent single longitudinal mode characteristic with a spectral linewidth of ∼ 28 MHz at operational power up to 2 W and a beam quality with M² < 1.4.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems