NDLI: Direct solar-pumped iodine laser amplifier

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Direct solar-pumped iodine laser amplifier

Content Provider	NASA Technical Reports Server (NTRS)
Author	Han, Kwang S. Hwang, In Heon
Copyright Year	1990
Description	The optimum conditions of a solar pumped iodine laser are found in this research for the case of a continuous wave operation and a pulsed operation. The optimum product of the pressure(p) inside the laser tube and the tube diameter(d) was pd=40 approx. 50 torr-cm on the contrary to the case of a high intensity flashlamp pumped iodine laser where the optimum value of the product is known to be pd=150 torr-cm. The pressure-diameter product is less than 1/3 of that of the high power iodine laser. During the research period, various laser materials were also studied for solar pumping. Among the laser materials, Nd:YAG is found to have the lowest laser threshold pumping intensity of about 200 solar constant. The Rhodamine 6G was also tested as the solar pumped laser material. The threshold pumping power was measured to be about 20,000 solar constant. The amplification experiment for a continuously pumped iodine laser amplifier was performed using Vortek solar simulator and the amplification factors were measured for single pass amplification and triple pass amplification of the 15 cm long amplifier tube. The amplification of 5 was obtained for the triple pass amplification.
File Size	590509
Page Count	17
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19900012714
Archival Resource Key	ark:/13960/t59d1v58x
Language	English
Publisher Date	1990-03-01
Access Restriction	Open
Subject Keyword	Lasers And Masers Amplification Iodine Lasers Rhodamine Light Amplifiers Laser Pumping High Power Lasers Solar Constant Laser Materials Solar Simulators Continuous Radiation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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