Optics TechnologyPub Date : 1970-08-01Epub Date: 2002-10-09DOI: 10.1016/0374-3926(70)90034-7
D.C. Hanna
{"title":"Increasing laser brightness by transverse mode selection-1","authors":"D.C. Hanna","doi":"10.1016/0374-3926(70)90034-7","DOIUrl":"10.1016/0374-3926(70)90034-7","url":null,"abstract":"<div><p>Tranverse mode selection increases the brightness of solid-state lasers-useful in plasma generation, microcircuit machining, drilling and nonlinear optics. This article enumerates advantages of transverse mode selection and gives the background to modes and resonators. Using mode selection solid-state lasers may become reliable with good repeatability of performance, removing their most serious drawbacks. Part 2 explains the basis of mode selection using the plano-concave resonator as an example and discusses a wide variety of resonators. Unstable resonators show particular promise for mode selection.</p></div>","PeriodicalId":100989,"journal":{"name":"Optics Technology","volume":"2 3","pages":"Pages 122-125"},"PeriodicalIF":0.0,"publicationDate":"1970-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0374-3926(70)90034-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72630650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optics TechnologyPub Date : 1970-08-01Epub Date: 2002-10-09DOI: 10.1016/0374-3926(70)90040-2
K. Rózsa, T. Salamon
{"title":"Low-noise He-Ne laser","authors":"K. Rózsa, T. Salamon","doi":"10.1016/0374-3926(70)90040-2","DOIUrl":"10.1016/0374-3926(70)90040-2","url":null,"abstract":"<div><p>The division of the laser capillary in the way described by Takeo Suzuki is a very efficient and simple method for decreasing the noise level in He-Ne gas lasers. Plasma noise of the discharge, the main source of the noise present in the output of the laser, has been investigated. The threshold of noise-free operation is given as a function of the geometry of capillary elements, He-Ne mixing ratio, total gas pressure and discharge current. Signal-to-noise ratio measured on laser tubes constructed on the basis of the results obtained is greater than 40dB.</p></div>","PeriodicalId":100989,"journal":{"name":"Optics Technology","volume":"2 3","pages":"Pages 151-153"},"PeriodicalIF":0.0,"publicationDate":"1970-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0374-3926(70)90040-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78028846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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