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Study on the Superprecision Glass Molding of Aspherical Lens for Optical Communication Module  

Jang, Kyung-Su (Department of Nano Fusion Technology, Pusan National Univ.)
Lee, Tae-Ho (Department of Nano Fusion Technology, Pusan National Univ.)
Rho, Tae-Yung (DINAOptics Co., Ltd.)
Kim, Chang-Seok (Department of Cogno-Mechatronics Engineering, Pusan National Univ.)
Jeong, Myung-Yung (Department of Cogno-Mechatronics Engineering, Pusan National Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.27, no.1, 2010 , pp. 18-24 More about this Journal
Abstract
Efforts to obtain more efficient coupling of light from a laser diode to a single mode fiber have continued for various applications such as links for optical fiber communication systems. In TO-can package, configuration of optimized aspherical lens is bi-aspheric and its diameter is 2.4mm. We designed and fabricated aspherical coupling lens by means of glass molding technique under consideration of glass shrinkage. By controlling the aspherical profile error and surface roughness which were below 90nm and 10nm, respectively, we obtained the low coupling loss, 5.40dB, which was able to use for coupling a single mode fiber to laser diode.
Keywords
Aspherical Lens; TO-Can; Slanted Axis Manufacturing; Glass Molding Process; Insert Molding;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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