本論文旨在發展出一種能直接將太陽光收進單模光纖中使用的裝置，並以增加收光效率為目標，主要分成三大部分，先根據理論資料與過去實際天氣資料作為評估，了解實際戶外太陽光分別在台北與清奈各季節的日照能量及使用太陽能的最佳時機，並針對現有太陽光模擬器標準與規範做簡單介紹，了解其與自然太陽光差異。第二部分則為實際實驗，首先利用太陽光模擬器量測元件組合討論其耦合效果，得到使用大光束準直器輔助光纖與耦合能將功率密度提升到552.4倍。本論文最後以透鏡組與大光束準直器及光纖實際到戶外進行多次量測，其中結構與天氣影響，以0.01227平方公尺的接收面積接收到光纖中最高的功率為4.315×〖10〗^(-3) mW，即功率密度提升了2276倍。最後部分則是利用Tracepro軟體根據不同的耦光元件進行耦合光的模擬，分別量測了透鏡與漸變折射率透鏡耦合光纖的效果，最後使用了透鏡與大光束準直器組合而成的架構將光源的功率密度提高了16570倍，並模擬裝置在戶外整年度每日正午12點的的接收效率，了解此架構在仰角為40.6∘以內都至少能接收到太陽光，且功率較高的區間為5月底到7月中，都在0.6 mW以上。接著以7月11日台北日光為光源，以不同的天氣狀況模擬收光情形可以得到真空時可以收進光纖內的功率為0.7438 mW；晴天時為0.5619 mW；部分有雲天為0.2158 mW，也因此可以計算要在各天氣狀況下都能有1 mW的功率至少要將面積提升4.6倍。

This thesis aims to develop a device that can directly transform sunlight into a single-mode fiber, and increase the light-receiving efficiency. We mainly divided the experiment into three parts. Firstly, we understand the optimal time for sun exposure and the best time for solar energy transformation in Taipei and Chennai based on the theoretical data and the data of actual weather. The second part is to use the Tracepro software to simulate the coupling light according to different coupling elements, and measure the effect of the lens and the gradient index lens coupling with fiber respectively. Finally, the combination of the lens and the large beam collimator used in the experiment increases the power density of the light source by 16570 times. By simulating the receiving efficiency of the system every day in the whole year is simulated, it is understood that the architecture can receive at least sunlight at an elevation angle of 40.6 degree. From the end of May to the middle of July, both power are above 0.6 mW. Next, with the sunlight of Taipei on July 11 as the light source, the light collection simulated in different weather conditions can receive the power of 0.7438 mW into the fiber at vacuum condition, 0.5619 mW in the sunny day, and 0.2158 mW in the partly cloudy weather. It can be calculated that the power of 1mW can increase at least 4.6 times in all the weather conditions. The last part is the actual experiment. The coupling effect of the solar simulator is discussed, and the power density increases to 552.4 times by using the large beam collimator auxiliary fiber and coupling energy. At the end of the paper, the lens group, the large beam collimator and the optical fiber are actually measured outdoors, under the influence of the structure and weather, the highest power received in the fiber with a receiving area of 0.01227 square meters is 4.315 mW, and the power density increases by 2276 times.

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