本文選題：光子晶體光纖 + 馬赫-曾德干涉儀��； 參考：《光通信研究》2017年03期

【摘要】：采用全矢量有限元法,研究了空氣孔為正九邊形周期性排列的全內(nèi)反射型光子晶體光纖的溫度傳感特性,分析了不同空氣孔排列形狀、占空比以及波長(zhǎng)對(duì)溫度特性的影響,并與正六邊形結(jié)構(gòu)的光子晶體光纖進(jìn)行了對(duì)比。研究表明,空氣孔為正九邊形周期性排列時(shí),光子晶體光纖模場(chǎng)分布隨溫度變化顯著,其有效折射率和限制損耗的大小與溫度成反比。保持孔間距不變,占空比越大,輸入波長(zhǎng)越長(zhǎng),靈敏度越高。在此基礎(chǔ)上,提出了一種正九邊形熔接點(diǎn)為錐形的單模光纖-光子晶體光纖-單模光纖馬赫曾德干涉儀溫度傳感器,當(dāng)波長(zhǎng)為1 550nm,占空比為0.6,溫度范圍為-20~80℃時(shí),該傳感結(jié)構(gòu)的溫度靈敏度為0.112 2nm/℃。
[Abstract]:The temperature sensing characteristics of totally internal reflection photonic crystal fibers with air holes arranged periodically in a normal nine-sided shape are studied by using full-vector finite element method. The effects of different air orifice arrangement shapes, duty cycle and wavelength on the temperature characteristics are analyzed. It is compared with photonic crystal fiber with hexagonal structure. The results show that the mode field distribution of photonic crystal fiber varies significantly with temperature when the air holes are arranged periodically in a normal nine-sided form. The effective refractive index and limiting loss are inversely proportional to the temperature. The larger the duty cycle, the longer the input wavelength and the higher the sensitivity. On the basis of this, a single mode fiber, photonic crystal fiber and a single mode fiber Mach Zende interferometer temperature sensor with conical junction is proposed. When the wavelength is 1 550 nm, the duty cycle is 0.6, and the temperature range is -2080 鈩，

本文編號(hào)：2046980