Research on Dual-Frequency-Oscillation Fiber Ring Loser with SOA

SOA双频振荡光纤环损耗器研究

• 批准号: 13650036
• 负责人: TAKAHASHI Yoshitaka
• 金额: $ 2.18万
• 依托单位: GUNMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650036/
• 关键词: Fiber Laser; Ring Laser; Semiconductor Optical Amplifier; Optical Sensing

A new type of a fiber ring laser with a SOA (semiconductor optical amplifier) has been developed which is applicable to a novel fiber sensor. The laser contains a SOA as the optical gain medium which also acts as polarizer, fiber collimators, and Faraday rotators. Introducing a birefringent medium in the laser cavity results in a frequency difference between the counter-propagating oscillations in proportion to the birefringence. When a fused quartz cell was introduced as a sensing medium, in proportion to applied pressure a shift in the frequency difference was observed, which suggests that this laser is a promising frequency-domain fiber sensor.

开发了一种新型带有SOA（半导体光放大器）的光纤环形激光器，适用于新型光纤传感器。该激光器包含 SOA 作为光学增益介质，也可用作偏振器、光纤准直器和法拉第旋转器。在激光腔中引入双折射介质会导致反向传播振荡之间的频率差与双折射成比例。当引入熔融石英池作为传感介质时，观察到频率差的变化与施加的压力成比例，这表明该激光器是一种有前途的频域光纤传感器。