STUDY AND EXPERIMENTATION TO OBTAIN SUNPUMPED LASER COMMUNICATIONS TRANSMITTER.
Abstract
This Report describes the continuing effort of experimentation and design leading to an experimental model of 1-watt, room-temperature, continuous operation, sunpumped laser transmitter. Preliminary experiments Preliminary experiments culminating in approximately a watt of laser output from a glass laser fiber at room temperature, when pumped by the solar simulator, are described. In addition, efforts to improve neodymiumdoped glass and calcium tungstate are reported. A discussion of these laser materials and also neodymiumdoped yttrium aluminum garnet is included. Special pumping configurations designed to exploit the properties of the available laser materials, which have been designed and in some cases fabricated, are described. These include side pumped crystalline lasers by cylindrical refractors or reflectors, with diameters in these fragile materials which are not impractically small. New end-pumping schemes employing liquid immersion also are described. Some additional thermal considerations apropos yttrium aluminum garnet and liquid-immersed long glass fibers are presented. A section is included which describes the work on neodymium-doped CaWO4 and YAG crystal synthesis which was performed at Arthur D. Little, Inc., under this contract. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1965
- Accession Number
- AD0610601
Entities
People
- C. G. Young