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Journal Article Novel Color Combiner Composed of Red, Green, and Blue Laser Diodes and a Thermally Expanded Core Fiber Waveguide
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Authors
In Hee Shin, Jong Jin Lee, Hyun Seo Kang
Issue Date
2011-09
Citation
Optical Engineering, v.50, no.9, pp.1-4
ISSN
0091-3286
Publisher
SPIE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1117/1.3626577
Project Code
11ZV1200, A Study on Development of Technologies for Supporting Industries, Kim Young Sun
Abstract
We propose a new simple structure-based color combiner with red, green, and blue (RGB) laser diodes (LDs) and a thermally expanded core (TEC) fiber waveguide. As the color combiner used the LDs as optical sources, the total volume of the color combiner could be minimized as 3.84 cc and the output powers of RGB optical sources in the color combiner could be obtained efficiently as 10.324, 13.290, and 10.150mW, respectively. A TEC fiber waveguide was used as a medium for color combination of RGB in the color combiner. As the TEC fiber waveguide was used as a key component for color combination, we could observe the color combiner had the degree of uniformity and the matching accuracy was good. The measured degree of uniformity and matching accuracy of RGB beams were 121 μm (in large diameter), 56 μm (in small diameter), and 109 μm (on x-axis), 20 μm (on y-axis), respectively. © 2011 Society of Photo-Optical Instrumentation Engineers (SPIE).
KSP Keywords
Blue laser, Key Components, Laser diode(LD), Matching accuracy, Optical instrumentation, Total volume, color combination, large diameter, optical source, simple structure, small diameter