{"title":"High-energy, high-repetition-rate LD side-pumped burst-mode green laser","authors":"Teng Kan , Peilin Li , Qiang Liu","doi":"10.1016/j.optlastec.2025.112841","DOIUrl":null,"url":null,"abstract":"<div><div>We present a LD-side-pumped Nd:YAG-based burst-mode green laser system that utilizes an electro-optical (EO) Q-switched oscillator followed by a folded power amplifier design and a second harmonic generator to achieve a compact-footprint (0.36 m<sup>2</sup>) architecture. The maximum pulse energy of 248 mJ at 1064 nm and 102 mJ at 532 nm was obtained at a pulse repetition rate of 10 kHz and burst duration of 5 ms, corresponding to a second-harmonic conversion efficiency of up to 41%. At a higher repetition rate of 50 kHz, an output of over 40 mJ per pulse at 532 nm, with a pulse width of 11.52 ns and a total burst energy of 10 J, was achieved. To the best of our knowledge, this represents the highest reported LD-pumped burst-mode green laser in terms of pulse energy and pulse repetition rate.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"188 ","pages":"Article 112841"},"PeriodicalIF":4.6000,"publicationDate":"2025-04-03","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/S0030399225004323","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
Abstract
We present a LD-side-pumped Nd:YAG-based burst-mode green laser system that utilizes an electro-optical (EO) Q-switched oscillator followed by a folded power amplifier design and a second harmonic generator to achieve a compact-footprint (0.36 m2) architecture. The maximum pulse energy of 248 mJ at 1064 nm and 102 mJ at 532 nm was obtained at a pulse repetition rate of 10 kHz and burst duration of 5 ms, corresponding to a second-harmonic conversion efficiency of up to 41%. At a higher repetition rate of 50 kHz, an output of over 40 mJ per pulse at 532 nm, with a pulse width of 11.52 ns and a total burst energy of 10 J, was achieved. To the best of our knowledge, this represents the highest reported LD-pumped burst-mode green laser in terms of pulse energy and pulse repetition rate.
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