Triple and Double Photons Absorption Process and Down-Conversion Laser Emitting Investigation of Er-Ion Doped Microsphere

• 作者: Changlei Guo Peijing Zhang Yantang Huang Yu Huang
• 来源期刊: 现代物理(英文)
• 学科: 化学
• 关键词: TRIPLE PHOTONS ABSORPTION Process Er3+ DOPED MICROSPHERE Taper Optical Fiber Micro-Laser
• 年，卷（期）: 2013,（12）
• 页码范围: 1622-1626
• 页数: 5页
• 分类号: O6

摘要

We report a readily and cheap method to build taper optical fiber-Er3+ doped microsphere platform to investigate upconversion fluorescence emission and down-conversion laser oscillation with low threshold pump power. We demonstrate to dope Er3+ into silica microsphere surface by dipping a single-taper optical fiber into a certain concentration of erbium nitrate solution (Er(NO3)) , then dry it and use the electrical-arc of the optical fiber splicer to melt the tip of taper fiber to form the Er3+-doped silica microsphere due to surface tension induced. We also present a HF acid etching setup to fabricate low loss biconical optical taper fibers. We demonstrate the Er3+ doped silica microsphere triple photons and dual photons absorption process of up-conversion fluorescence emission and down-conversion laser oscillation spectra by using the optical tapered fiber to couple 976 nm/1534 nm pump light source.