宽带高亮度光源：玻璃包层钛宝石晶体光纤。

Broadband and high-brightness light source: glass-clad Ti:sapphire crystal fiber.

作者信息

Wang Shih-Chang, Yang Teng-I, Jheng Dong-Yo, Hsu Chun-Yang, Yang Tzu-Te, Ho Tuan-Shu, Huang Sheng-Lung

出版信息

Opt Lett. 2015 Dec 1;40(23):5594-7. doi: 10.1364/OL.40.005594.

DOI:10.1364/OL.40.005594

Abstract

High-brightness near-infrared broadband amplified spontaneous emission (ASE) was generated by glass-clad Ti:sapphire crystal fibers, which were developed using the co-drawing laser-heated pedestal growth method. As much as 29.2 mW of ASE power was generated using 520 nm laser diodes as the excitation source on an a-cut, 18 μm core-diameter Ti:sapphire crystal fiber (CF). The 3 dB bandwidth was 163.8 nm, and the radiance was 53.94 W·mm(-2) sr(-1). The propagation loss of the glass-clad sapphire CF measured using the cutback method was 0.017 cm(-1) at 780 nm. For single-mode applications, more than 100 μW of power was coupled into a SM600 single-mode fiber.

摘要

通过采用共拉激光加热基座生长法制备的包层玻璃钛宝石晶体光纤产生了高亮度近红外宽带放大自发辐射（ASE）。在一根a切割、芯径为18μm的钛宝石晶体光纤（CF）上，使用520nm激光二极管作为激发源，产生了高达29.2mW的ASE功率。3dB带宽为163.8nm，辐射亮度为53.94W·mm(-2) sr(-1)。采用截断法测量的包层玻璃蓝宝石CF在780nm处的传输损耗为0.017 cm(-1)。对于单模应用，超过100μW的功率被耦合到一根SM600单模光纤中。