光学精密工程2016，Vol.24Issue(11)：2658-2664,7.DOI:10.3788/OPE.20162411.2658
基于声光调谐的扫频光源
Swept source laser based on acousto-optic tuning
摘要
Abstract
A swept-source laser by using an Acousto-optic Tunable Filter (AOTF) was researched to improve the stability of the source output .The principles and method to implement output stability of the source were described ,and corresponding parameters of the source were analyzed .An acousto-optic tuning was selected to replace the mechanical filtering to improve its output stability . A Semiconductor Optical Amplifier (SOA ) was used as a gain medium and the AOTF was used as a wavelength-selected element in an internal fiber ring cavity .The acousto-optic interaction was used in the filtering of light in the cavity . With the SOA injection current of 280 mA , the continuous wavelength tuning range of the source is from 1 294 to 1 368 nm centered at a wavelength of 1 330 nm ,and its sweep rate is 3 731 Hz ,the full width at half maximum is 51 nm and the output power from the ring cavity is 1 .14 mW .By using the electric control element AOTF ,the system implements the electronic tuning without mechanical movement elements ,so it shows good output stability and excellent spectral repetition .It concludes that the swept-source laser obtained by this method has a stable output and satisfies the requirements of the other parameters of the swept source optical coherence tomography .关键词
扫频光源/声光可调谐滤波器/半导体光放大器/无机械移动/稳定输出Key words
swept-source/Acousto-optic Tunable Filter (AOTF )/Semiconductor Optical Amplifier (SOA)/non-mechanical movement/stable output分类
信息技术与安全科学引用本文复制引用
陈明惠,范云平,张浩,陶建峰,田甜,郑刚..基于声光调谐的扫频光源[J].光学精密工程,2016,24(11):2658-2664,7.基金项目
国家自然科学基金资助项目（No ．61308115）；上海市自然科学基金资助项目 （）
