基於單模光纖系統之微光學讀寫機構設計與分析

Abstract

藍光BD讀寫系統因其高容量之儲存能力將成為光資訊儲存產品市場主流。但藍光BD讀寫系統需與CD、DVD碟片兼容，因此不同波長雷射光源裝置造成藍光讀寫頭之體積過於龐大。如何使藍光讀寫系統之讀取寫頭微型化、輕量化便成為當前的研發課題。本文介紹基於單模光纖系統之微光學讀寫機構設計與分析，說明如何藉由單模光纖及其週邊元件，將系統中的雷射光源光學組件及驅動電路由光學讀寫頭分離出來以達到微型化、輕量化的目的。

關鍵詞：單模光纖、物鏡、光纖式光學讀寫頭

Blu-ray Disc drive systems become the mainstream on optical data storage products market because of its high storage capacity. However, the BD optical pickup head is quite bulky because it has to be backward compatible with CD and DVD discs caused the BD optical pickup system needs to equip different laser light sources. So, the important subject for research and development of BD pickup head is how to reduce the size and weight. This article introduces the system structure of micro optical pickup head design and analysis based on single mode optical fiber system to separate the laser diode optics modules and driving circuit board from optical pickup head for reducing the size and weight of traditional optical pickup head.

Keywords: Single mode fiber, objective lens, optical fiber pickup head.