高功率飛秒光梳精密控制與應(yīng)用探索
發(fā)布時(shí)間：2019-02-28 12:04
【摘要】：基于鎖模飛秒脈沖時(shí)-頻域精密控制的光學(xué)頻率梳在超快激光領(lǐng)域引發(fā)了重要的技術(shù)革新。飛秒光梳輸出激光具有良好的相干性與頻率精確度,并能夠?qū)崿F(xiàn)覆蓋一個(gè)倍頻程的寬帶光譜輸出。如果將飛秒光梳的某一根梳齒鎖定到穩(wěn)定的窄線寬連續(xù)光源上,則可以形成窄線寬光梳并完成頻率的精密傳遞。另一方面,通過激光放大器提升超短脈沖的峰值能量,可以增強(qiáng)光梳輸出激光的探測靈敏度,從而將高功率飛秒光梳系統(tǒng)運(yùn)用到諸如紫外與中紅外頻段拓展、阿秒脈沖產(chǎn)生、天文光譜儀校準(zhǔn)、精密光譜與距離測量、微波光子學(xué)等前沿科學(xué)研究中。圍繞著“高功率飛秒光梳精密控制與應(yīng)用探索”這一主題,本論文依次從光梳種子源振蕩器的優(yōu)化、超短脈沖功率放大、高功率脈沖載波包絡(luò)相位探測與相位噪聲抑制等方面展開了深入研究與分析討論,實(shí)現(xiàn)了脈沖平均功率100 W,峰值功率15 MW的自相似脈沖放大系統(tǒng);并進(jìn)而利用基于聲光移頻器的前向式反饋控制技術(shù)對高功率脈沖進(jìn)行載波包絡(luò)相位控制,獲得了平均功率50 W,脈沖寬度54 fs的摻鐿光纖光學(xué)頻率梳系統(tǒng)。該系統(tǒng)中受控的載波包絡(luò)相位信號(hào)線寬為11 mHz,累積相位噪聲為1.25 rad。此外,研究中繼而開展了時(shí)-頻域精密控制的高功率光梳在特殊非線性光學(xué)現(xiàn)象激發(fā)與光學(xué)精密測量等方面的應(yīng)用探索。本文的主要研究內(nèi)容和創(chuàng)新點(diǎn)總結(jié)如下1.優(yōu)化光纖光學(xué)頻梳種子源的結(jié)構(gòu)特性,在非線性偏振旋轉(zhuǎn)鎖模激光器的基礎(chǔ)上發(fā)展基于法拉第旋轉(zhuǎn)器的偏振補(bǔ)償式色散控制技術(shù),從而有效降低腔內(nèi)光柵的衍射損耗并提高激光器的結(jié)構(gòu)穩(wěn)定性,在約48 mW的鎖模閡值下獲得了脈寬55 fs,峰值功率2.9 kW的近紅外超短脈沖；開展光纖激光器中的波形控制研究,利用腔內(nèi)自相位調(diào)制效應(yīng)實(shí)現(xiàn)具有較高自由運(yùn)轉(zhuǎn)頻率精度的自相似脈沖,為后續(xù)超短脈沖高功率放大和光梳載波包絡(luò)相位噪聲的長期抑制提供穩(wěn)定光源。2.研制超短脈沖光纖功率放大器,利用基于全光纖時(shí)域展寬器的啁啾脈沖放大系統(tǒng)實(shí)現(xiàn)泵浦斜效率為62%,最大平均輸出功率值為270 W,單脈沖能量為4.5μJ的基模高功率脈沖輸出,壓縮后的超短脈沖具有625 fs的時(shí)間寬度,脈沖峰值功率為4.3 MW；發(fā)展自相似放大技術(shù),克服超短脈沖放大過程中的非線性效應(yīng)與有限增益帶寬制約的難題,通過預(yù)啁啾管理方案加速增益光纖內(nèi)超短脈沖演變,實(shí)現(xiàn)了壓縮后平均功率為90 W,脈沖寬度為60 fs,峰值功率為15 MW的超短脈沖輸山。該平均功率值是已報(bào)道同類放大技術(shù)最大輸出功率的5倍,為高功率飛秒光梳系統(tǒng)提供可靠驅(qū)動(dòng)源。3.開展新型放大材料的激光特性研究,利用無水基流延成型法制備新型Yb：YAG透明陶瓷激光介質(zhì),并得到腔內(nèi)直接輸出功率為7 W,泵浦轉(zhuǎn)換效率達(dá)到60.2%的高功率連續(xù)光輸出與平均功率450 mW,時(shí)域3 ps的脈沖光輸出；同時(shí),利用該固體脈沖激光器作為種子源,在非線性光纖放大系統(tǒng)中獲得最大平均功率為100 W,脈度為70 fs,光譜范圍超過85 nm的高質(zhì)量寬帶超短脈沖輸出,為研制基于塊狀增益介質(zhì)的新一代集成化高功率飛秒光梳開辟道路。4.實(shí)現(xiàn)高功率超短脈沖的時(shí)頻域精密操控,獲得平均功率50W,脈沖寬度54 fs的高功率光學(xué)頻率梳系統(tǒng)。利用基于聲光移頻器的前饋式相位噪聲抑制技術(shù)對脈沖載波包絡(luò)相位進(jìn)行精確鎖定,受控的載波包絡(luò)相位信號(hào)線寬達(dá)到11mHz,累積相位噪聲為1.25 rad,載波與包絡(luò)的相對時(shí)間抖動(dòng)量為418 as,連續(xù)鎖定時(shí)間超過1小時(shí)。利用鎖相環(huán)電子反饋系統(tǒng)將脈沖重復(fù)頻率的長期頻率漂移量被穩(wěn)定在±3 mHz的范圍內(nèi),頻率精度標(biāo)準(zhǔn)偏差達(dá)到0.795 mHz。該光梳系統(tǒng)的平均功率水平達(dá)到了前向反饋式光學(xué)頻率梳的最高水平5.在高功率飛秒光梳的應(yīng)用探索中,利用高功率超短脈沖激發(fā)光子晶體光纖中耗散孤子增強(qiáng)、光極化和二次諧波產(chǎn)生等綜合性非線性作用,獲得最短波長在300nm,轉(zhuǎn)換范圍超過100 nm的寬帶倍頻紫外光；首次利用飛秒光梳作為參考源探測連續(xù)激光器輸出線寬,使光纖單頻激光器和外腔半導(dǎo)體激光器的測量結(jié)果達(dá)到了行業(yè)內(nèi)領(lǐng)先水平；同時(shí),對基于雙光梳測量技術(shù)的光譜遙感系統(tǒng)進(jìn)行了原理性實(shí)驗(yàn)驗(yàn)證,在掃描時(shí)間0.1 ms內(nèi)獲得較高分辨率精度的距離測量結(jié)果。
[Abstract]:The optical frequency comb based on the mode-locked femtosecond pulse-frequency domain precision control has caused important technological innovation in the ultrafast laser field. The femtosecond optical comb output laser has good coherence and frequency accuracy, and can realize wide-band spectral output covering one octave. If one of the comb teeth of the femtosecond optical comb is locked to a stable narrow line-width continuous light source, a narrow line-width optical comb can be formed and the precise transmission of the frequency can be completed. on the other hand, the peak energy of the ultrashort pulse is improved by the laser amplifier, the detection sensitivity of the light comb output laser can be enhanced, Precision spectrum and distance measurement, microwave photonics, etc. in the scientific research. In this paper, the research and analysis of the optical comb seed source oscillator, the ultra-short pulse power amplification, the high power pulse carrier envelope phase detection and the phase noise suppression are carried out in this paper in turn, and the pulse average power 100W is realized. A self-similar pulse amplifying system with a peak power of 15 MW is used, and then the carrier envelope phase control is carried out on the high power pulse by the forward feedback control technology based on the acousto-optic frequency shifter, and the optical frequency comb system of the doped optical fiber with the average power of 50 W and the pulse width of 54 fs is obtained. The controlled carrier envelope phase signal line in the system is 11 mHz and the cumulative phase noise is 1.25 rad. In addition, the application of high-power optical comb in time-frequency domain precision control in special nonlinear optical phenomena excitation and optical precision measurement is also carried out in the research. The main research and innovation points of this paper are summarized as follows. the polarization compensation type dispersion control technology based on the Faraday rotator is developed on the basis of the non-linear polarization rotary mode-locked laser, so that the diffraction loss of the cavity in the cavity is effectively reduced and the structural stability of the laser is improved, A near-infrared ultra-short pulse with a pulse width of 55 fs and a peak power of 2.9 kW was obtained at a value of approximately 48 mW, and a self-similar pulse with higher free-running frequency accuracy was realized by using the self-phase modulation effect in the cavity. And provides a stable light source for the long-term inhibition of the subsequent ultrashort pulse high power amplification and the phase noise of the optical comb carrier envelope. the ultra-short pulse fiber power amplifier is developed, the pumping efficiency is 62%, the maximum average output power value is 270W, and the single pulse energy is 4.5. m the compressed ultrashort pulse has a time width of 625fs, the pulse peak power is 4.3 MW, the self-similar amplification technology is developed, the problem that the nonlinear effect in the ultrashort pulse amplification process and the limited gain bandwidth is overcome, The ultra-short pulse evolution in the gain optical fiber is accelerated by the pre-pulse management scheme, and the ultra-short pulse transmission hill with the average power of 90W, the pulse width of 60 fs and the peak power of 15 MW is realized. The average power value is 5 times the maximum output power of the similar amplification technology, and provides a reliable driving source for the high-power femtosecond optical comb system. A new type of Yb: YAG transparent ceramic laser medium was prepared by the method of anhydrous base flow, and the direct output power of the cavity was 7W, and the output of the high power continuous light with the pump conversion efficiency of 60.2% and the average power of 450 mW were obtained. and simultaneously, using the solid-pulse laser as a seed source, a high-quality broadband ultrashort pulse output with a maximum average power of 100 W, a pulse degree of 70 fs and a spectral range of more than 85 nm is obtained in a non-linear optical fiber amplification system, In order to open up a new generation of integrated high-power femtosecond optical comb based on block-like gain medium. And the high-power optical frequency comb system with the average power of 50W and the pulse width of 54fs is obtained when the high-power ultra-short pulse is realized. the pulse carrier envelope phase is accurately locked by a feed-forward phase noise suppression technology based on an acousto-optic frequency shifter, the controlled carrier envelope phase signal line width reaches 11 mHz, the accumulated phase noise is 1.25 rad, and the relative time jitter amount of the carrier wave and the envelope is 418as, The continuous locking time is more than 1 hour. Using a phase-locked loop electronic feedback system, the long-term frequency drift of the pulse repetition frequency is stabilized in the range of about 3 mHz, and the standard deviation of the frequency accuracy reaches 0.795 mHz. The average power level of the optical comb system reaches the highest level 5 of the forward feedback optical frequency comb. In the application of high-power femtosecond optical comb, the broadband frequency-doubled ultraviolet light with the shortest wavelength of 300 nm and the conversion range of more than 100 nm is obtained by using high-power ultra-short pulse to excite the comprehensive non-linear effects of the dissipation soliton enhancement, the optical polarization and the second harmonic generation in the photonic crystal fiber. In the first time, a femtosecond optical comb is used as a reference source to detect the output line width of a continuous laser, so that the measurement results of the optical fiber single frequency laser and the external cavity semiconductor laser reach the leading level in the industry; meanwhile, the spectral remote sensing system based on the double light comb measurement technology is verified by the principle experiment, A distance measurement result of higher resolution accuracy is obtained in a scan time of 0.1 ms.
【學(xué)位授予單位】：華東師范大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2016
【分類號(hào)】：O437
[Abstract]:The optical frequency comb based on the mode-locked femtosecond pulse-frequency domain precision control has caused important technological innovation in the ultrafast laser field. The femtosecond optical comb output laser has good coherence and frequency accuracy, and can realize wide-band spectral output covering one octave. If one of the comb teeth of the femtosecond optical comb is locked to a stable narrow line-width continuous light source, a narrow line-width optical comb can be formed and the precise transmission of the frequency can be completed. on the other hand, the peak energy of the ultrashort pulse is improved by the laser amplifier, the detection sensitivity of the light comb output laser can be enhanced, Precision spectrum and distance measurement, microwave photonics, etc. in the scientific research. In this paper, the research and analysis of the optical comb seed source oscillator, the ultra-short pulse power amplification, the high power pulse carrier envelope phase detection and the phase noise suppression are carried out in this paper in turn, and the pulse average power 100W is realized. A self-similar pulse amplifying system with a peak power of 15 MW is used, and then the carrier envelope phase control is carried out on the high power pulse by the forward feedback control technology based on the acousto-optic frequency shifter, and the optical frequency comb system of the doped optical fiber with the average power of 50 W and the pulse width of 54 fs is obtained. The controlled carrier envelope phase signal line in the system is 11 mHz and the cumulative phase noise is 1.25 rad. In addition, the application of high-power optical comb in time-frequency domain precision control in special nonlinear optical phenomena excitation and optical precision measurement is also carried out in the research. The main research and innovation points of this paper are summarized as follows. the polarization compensation type dispersion control technology based on the Faraday rotator is developed on the basis of the non-linear polarization rotary mode-locked laser, so that the diffraction loss of the cavity in the cavity is effectively reduced and the structural stability of the laser is improved, A near-infrared ultra-short pulse with a pulse width of 55 fs and a peak power of 2.9 kW was obtained at a value of approximately 48 mW, and a self-similar pulse with higher free-running frequency accuracy was realized by using the self-phase modulation effect in the cavity. And provides a stable light source for the long-term inhibition of the subsequent ultrashort pulse high power amplification and the phase noise of the optical comb carrier envelope. the ultra-short pulse fiber power amplifier is developed, the pumping efficiency is 62%, the maximum average output power value is 270W, and the single pulse energy is 4.5. m the compressed ultrashort pulse has a time width of 625fs, the pulse peak power is 4.3 MW, the self-similar amplification technology is developed, the problem that the nonlinear effect in the ultrashort pulse amplification process and the limited gain bandwidth is overcome, The ultra-short pulse evolution in the gain optical fiber is accelerated by the pre-pulse management scheme, and the ultra-short pulse transmission hill with the average power of 90W, the pulse width of 60 fs and the peak power of 15 MW is realized. The average power value is 5 times the maximum output power of the similar amplification technology, and provides a reliable driving source for the high-power femtosecond optical comb system. A new type of Yb: YAG transparent ceramic laser medium was prepared by the method of anhydrous base flow, and the direct output power of the cavity was 7W, and the output of the high power continuous light with the pump conversion efficiency of 60.2% and the average power of 450 mW were obtained. and simultaneously, using the solid-pulse laser as a seed source, a high-quality broadband ultrashort pulse output with a maximum average power of 100 W, a pulse degree of 70 fs and a spectral range of more than 85 nm is obtained in a non-linear optical fiber amplification system, In order to open up a new generation of integrated high-power femtosecond optical comb based on block-like gain medium. And the high-power optical frequency comb system with the average power of 50W and the pulse width of 54fs is obtained when the high-power ultra-short pulse is realized. the pulse carrier envelope phase is accurately locked by a feed-forward phase noise suppression technology based on an acousto-optic frequency shifter, the controlled carrier envelope phase signal line width reaches 11 mHz, the accumulated phase noise is 1.25 rad, and the relative time jitter amount of the carrier wave and the envelope is 418as, The continuous locking time is more than 1 hour. Using a phase-locked loop electronic feedback system, the long-term frequency drift of the pulse repetition frequency is stabilized in the range of about 3 mHz, and the standard deviation of the frequency accuracy reaches 0.795 mHz. The average power level of the optical comb system reaches the highest level 5 of the forward feedback optical frequency comb. In the application of high-power femtosecond optical comb, the broadband frequency-doubled ultraviolet light with the shortest wavelength of 300 nm and the conversion range of more than 100 nm is obtained by using high-power ultra-short pulse to excite the comprehensive non-linear effects of the dissipation soliton enhancement, the optical polarization and the second harmonic generation in the photonic crystal fiber. In the first time, a femtosecond optical comb is used as a reference source to detect the output line width of a continuous laser, so that the measurement results of the optical fiber single frequency laser and the external cavity semiconductor laser reach the leading level in the industry; meanwhile, the spectral remote sensing system based on the double light comb measurement technology is verified by the principle experiment, A distance measurement result of higher resolution accuracy is obtained in a scan time of 0.1 ms.
【學(xué)位授予單位】：華東師范大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2016
【分類號(hào)】：O437
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 侯修洲;;“飛秒化學(xué)、飛秒生物與飛秒物理”專題出版[J];科學(xué)通報(bào);2010年19期
2 佚名;;飛秒和飛秒激光[J];小學(xué)教學(xué)(數(shù)學(xué)版);2009年01期
3 錢士雄,馬國宏,郭立俊;飛秒超快過程研究[J];量子電子學(xué)報(bào);2000年05期
4 湯宇暉,韓申生,張長學(xué),程靜,吳衍青;飛秒強(qiáng)激光與低密度等離子體相互作用原初過程的實(shí)驗(yàn)研究[J];量子電子學(xué)報(bào);2000年05期
5 劉天夫;飛秒光譜技術(shù)的現(xiàn)狀與展望[J];物理;1992年02期
6 余向陽,羅琦,李偉良,李青,王志仁,周建英;飛秒相干態(tài)相位光譜的原理、技術(shù)與應(yīng)用[J];量子電子學(xué)報(bào);1998年06期
7 ;我研制成功“飛秒光梳裝置”[J];中國科技信息;2006年19期
8 王國超;顏樹華;林存寶;鄒鵬飛;楊東興;;基于飛秒光學(xué)頻率梳的大尺寸精密測距綜述[J];光學(xué)技術(shù);2012年06期
9 牛憨笨,張煥文,楊勤勞,王賢華,高山,黃玉金,高繼魁;飛秒掃描相機(jī)的研究[J];高速攝影與光子學(xué);1987年03期
10 曉晨;飛秒大氣探測燈[J];激光與光電子學(xué)進(jìn)展;1998年08期
相關(guān)會(huì)議論文 前10條
1 龔旗煌;;北京大學(xué)飛秒科學(xué)研究工作匯報(bào)[A];2004年全國強(qiáng)場激光物理會(huì)議論文集（一）[C];2004年
2 羅樂;李呈德;王丹翎;蔣紅兵;楊宏;夏宗炬;龔旗煌;;飛秒強(qiáng)激光微爆炸及微結(jié)構(gòu)制備[A];Strong Field Laser Physics--Proceedings of CCAST (World Laboratory) Workshop[C];2000年
3 余瑋;;飛秒強(qiáng)激光與等離子體相互作用的解析方法[A];Strong Field Laser Physics--Proceedings of CCAST(World Laboratory) Workshop[C];2002年
4 王艷艷;韓蒙;孫輝;任秋實(shí);Josef Bille;;利用二次諧波成像技術(shù)研究經(jīng)飛秒激光切削后角膜變化[A];上海市激光學(xué)會(huì)2005年學(xué)術(shù)年會(huì)論文集[C];2005年
5 周大偉;楊愛英;劉星洋;戴少陽;齊向暉;周小計(jì);陳徐宗;;光纖飛秒光梳研究進(jìn)展[A];全國光電子與量子電子學(xué)技術(shù)大會(huì)論文集[C];2011年
6 劉峰;陳黎明;林曉宣;劉峰;馬景龍;李潤澤;李玉同;王兆華;魏志義;張杰;;飛秒超短超強(qiáng)激光在氬團(tuán)簇中的等離子體通道自導(dǎo)引傳輸[A];第十四屆全國等離子體科學(xué)技術(shù)會(huì)議暨第五屆中國電推進(jìn)技術(shù)學(xué)術(shù)研討會(huì)會(huì)議摘要集[C];2009年
7 曾小明;朱啟華;魏曉峰;黃小軍;王逍;王曉東;周凱南;王方;劉蘭琴;謝旭東;郭儀;;飛秒光參量產(chǎn)生和放大實(shí)驗(yàn)[A];第十七屆全國激光學(xué)術(shù)會(huì)議論文集[C];2005年
8 韓海年;王延輝;魏志義;沈乃o，
本文編號(hào)：2431785
本文鏈接：http://sikaile.net/shoufeilunwen/jckxbs/2431785.html
最近更新
教材專著
