{"title":"Design and characterization of a laser diode pumped external cavity for particle measurement applications","authors":"C.A. Udelson, R. B. Hooker","doi":"10.1109/LEOS.1996.571878","DOIUrl":null,"url":null,"abstract":"Current particle measurement devices for use in applications such as clean-room air monitoring systems utilize a He-Ne laser as the pump source for an external resonant measurement cavity. Strides toward future development of particle measurement instrumentation aim to reduce cost and device size, thus making laser diodes a favorable choice. Laser diodes, however, exhibit several characteristic properties which must be addressed in order to achieve stable operation. We have devised and tested a simple cost efficient technique to ensure accurate particle measurement without the cost or bulk associated with laser stability instrumentation. We have investigated the power stability of a laser diode pumped external resonant cavity optical setup. We propose that the described system can be used for particle measurement applications by using the detected cavity output power as a trigger signal for a second detector, used to measure scattered light from particles pumped through the laser beam.","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1996-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/LEOS.1996.571878","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Current particle measurement devices for use in applications such as clean-room air monitoring systems utilize a He-Ne laser as the pump source for an external resonant measurement cavity. Strides toward future development of particle measurement instrumentation aim to reduce cost and device size, thus making laser diodes a favorable choice. Laser diodes, however, exhibit several characteristic properties which must be addressed in order to achieve stable operation. We have devised and tested a simple cost efficient technique to ensure accurate particle measurement without the cost or bulk associated with laser stability instrumentation. We have investigated the power stability of a laser diode pumped external resonant cavity optical setup. We propose that the described system can be used for particle measurement applications by using the detected cavity output power as a trigger signal for a second detector, used to measure scattered light from particles pumped through the laser beam.