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http://dx.doi.org/10.3807/HKH.2008.19.1.031

Design of a Rod-Type Aspheric Lens Collimator for Optical Telecommunication  

Kang, Seok-Bong (Department of Physics, Inha University)
Kang, Eun-Kyoung (Department of Physics, Inha University)
HwangBo, Chang-Kwon (Department of Physics, Inha University)
Kang, Sang-Do (R&D Center of Optical Technology, AG Optics)
Kim, Jong-Sup (Optical Components Pilot Production Center, Korea Photonics Technology Institute)
Publication Information
Korean Journal of Optics and Photonics / v.19, no.1, 2008 , pp. 31-35 More about this Journal
Abstract
A rod-type aspheric lens collimator for the optical telecommunication system which shows high coupling efficiency and experiences small coupling loss for misalignment errors is designed. The working distance, thickness, and diameter of the rod-type aspheric lens are determined to be close to those of the GRIN lens collimator in order to replace the GRIN lens with the rod-type aspheric lens. Since the coupling loss mainly originated from the spherical aberration of the lens, the spherical aberration in the rod-type aspheric lens is reduced drastically, and it turns out that the coupling efficiency of the rod-type aspheric lens collimator is higher than that of the available collimators, such as ball lens, GRIN lens, and C-type lens collimators.
Keywords
Optical collimator; Aspheric lens; Coupling efficiency;
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