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Design, Construction and Operation of a Multi-Stage Large-Bore CO2 Laser

Authors: D.N. Raouf --- N.A. Al-Rubaiey --- S.I. Abdul-Latif
Journal: Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية ISSN: 18132065 23091673 Year: 2005 Volume: 1 Issue: 1 Pages: 25-29
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

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Abstract

In this work, a CO2 laser system of five discharge stages was designed, constructed and operated with longitudinal electrical discharge and axial gas flow. The system was characterized throughout measuring output laser power as function of output coupler reflectivity, length of discharge tube and cooling water temperature. The maximum output power delivered was 135W at the TEM10 mode.


Article
The Study of the Nonlinear Optical Properties of Solutions under CW Laser Illumination
دراسة الخواص البصريه اللاخطيه لمحاليل باستخدام تاثير ليزر مستمر

Author: Ketamm abd al-adel waheed Hussain Ali Badran ختام عبد العادل ووحيد
Journal: Journal of Basrah Researches (Sciences) مجلة ابحاث البصرة ( العلميات) ISSN: 18172695 Year: 2012 Volume: 38 Issue: 4A Pages: 73-79
Publisher: Basrah University جامعة البصرة

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Abstract

The nonlinear optical properties of janus green in tetrahydrofuran solvent (THF) were studied using single beam Z-scan technique with a continuous-wave laser radiation at 635 nm of an output power of 40 mW. All the solution samples showed large nonlinear refractive indexes and absorption coefficient of the order of 10-7 cm2/W and 10-3 cm/W, respectively. The concentration-dependent nonlinear refractive index was also investigated. The solvent of spectroscopic grade and was used without further purification. All the solutions used for the study were freshly prepared

دراسة الخواص البصريه اللاخطية لمحاليل صبغة الجينيس الزرقاء( صبغه الازو) المذابة في رباعي هيدرو الفوران والتي تمت بواسطة تقنية المسح البصري باتجاه محورZ بأستخدام ليزر ذي النبضه المستمر بطول موجي قدره 635 نانومتر .وقد وجد ان معامل الانكسار اللاخطي ومعامل الامتصاص اللاخطي بحدود 7- 10 سنتمتر مربع/ الواط و 3- 10 سنتمتر/واط على التوالي. أظهرت هذه النتائج ان لهذه العينه تطبيقات في مجال البصريات اللاخطيه.وجميع العينات حضرت ودرست مباشره.

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