半导体光子学与技术, 2003, 9 (4): 215, 网络出版: 2011-08-12
Derivation of General Formula for Coupling Loss of Single-mode Fiber Collimators with Gradient-index Rod Lenses
Derivation of General Formula for Coupling Loss of Single-mode Fiber Collimators with Gradient-index Rod Lenses
摘要
Abstract
Gradient-index rod lens (GRIN-lens) whose pitch is ordinary value with bevel ferrule coupling system is analyzed, an equivalent method which can be used to analyze this system is put forward, and a general formula for determining the coupling loss with axes mismatch, radial mismatch, and angular mismatch is derived by use of the Gaussian field approximation and mode-field coupling theory. The experimental results are in good agreement with the theory prediction. It indicates that these formulas are suitable to analyze the gradient-index rod lens coupling system with pigtail fiber.
XIE Hu, LUO Feng-guang, CAO Ming-cui, YUAN Jing, WAN Zhu-jun. Derivation of General Formula for Coupling Loss of Single-mode Fiber Collimators with Gradient-index Rod Lenses[J]. 半导体光子学与技术, 2003, 9(4): 215. XIE Hu, LUO Feng-guang, CAO Ming-cui, YUAN Jing, WAN Zhu-jun. Derivation of General Formula for Coupling Loss of Single-mode Fiber Collimators with Gradient-index Rod Lenses[J]. Semiconductor Photonics and Technology, 2003, 9(4): 215.
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