Development of a 488-nm Blue Laser for Biomedical Analyzers
نویسندگان
چکیده
Figure 2 shows the configuration of the blue laser developed here. A 976-nm semiconductor laser is employed as fundamental lightwave generator, and after wavelength stabilization using fiber Bragg grating (FBG), the source light is directly coupled to a SHG wavelength conversion device of planar waveguide type. Because, in single-longitudinal-mode operation, the 976-nm semiconductor laser is subject to mode hopping due to fluctuations in the driving current, the laser is provided with an anti-mode hopping structure of multi-longitudinal-mode, and moreover, the reflection characteristics
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