本文關(guān)鍵詞： FBG波長(zhǎng)解調(diào) 波長(zhǎng)掃描激光器 F-P標(biāo)準(zhǔn)具　出處：《紅外與激光工程》2017年01期 　論文類型：期刊論文

【摘要】：光纖布拉格光柵(FBG)的波長(zhǎng)隨外界溫度和壓力變化。檢測(cè)出波長(zhǎng)的變化,就可以計(jì)算出外界的溫度和壓力。文章提出了一個(gè)基于F-P溫控標(biāo)準(zhǔn)具的高穩(wěn)定性光纖布拉格光柵(FBG)波長(zhǎng)解調(diào)系統(tǒng),討論分析了FBG波長(zhǎng)解調(diào)系統(tǒng)的原理及高穩(wěn)定性的原因。在這個(gè)系統(tǒng)中,帶溫控模塊的F-P標(biāo)準(zhǔn)具用來進(jìn)行實(shí)時(shí)波長(zhǎng)校準(zhǔn)。F-P標(biāo)準(zhǔn)具的波長(zhǎng)數(shù)值可查詢得到,由線性插值算法可以得出光纖光柵的波長(zhǎng)值。溫控模塊可以保證標(biāo)準(zhǔn)具在±0.01℃的范圍內(nèi)變化,因此標(biāo)準(zhǔn)具波長(zhǎng)值可以認(rèn)為是定值。最后通過測(cè)量水浴槽中光纖光柵的波長(zhǎng)變化測(cè)試系統(tǒng)穩(wěn)定性,并與MOI公司解調(diào)儀sm125在穩(wěn)定性方面做了對(duì)比。實(shí)驗(yàn)結(jié)果表明20 h內(nèi)系統(tǒng)的長(zhǎng)期穩(wěn)定性可達(dá)到±0.15 pm,而sm125解調(diào)儀是±3 pm。
[Abstract]:The wavelength of fiber Bragg grating (FBG) varies with the external temperature and pressure. The external temperature and pressure can be calculated. A wavelength demodulation system for fiber Bragg grating (FBG) with high stability based on F-P temperature control standard is presented in this paper. The principle of FBG wavelength demodulation system and the reasons for its high stability are discussed. F-P standard device with temperature control module is used for real-time wavelength calibration. The wavelength value of F-P standard device can be obtained by querying. The wavelength of fiber Bragg grating can be obtained by linear interpolation algorithm. The temperature control module can ensure that the standard varies in the range of 鹵0.01 鈩，

本文編號(hào)：1447235