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Rogue waves (RWs) are rare, extreme amplitude, localized wave packets, which have received much interest recently in different areas of physics. Fiber lasers with their abundant nonlinear dynamics provide an ideal platform to observe optical RW formation. We review recent research progress on rogue waves in fiber lasers. Basic concepts of RWs and the mechanisms of RW generation

PDF全文 HTML全文 Advanced Photonics | 2020,2(02):024001-24001
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The photoelectric properties of conductive films are improved by doping Ag on aluminum-doped zinc oxide (AZO) films by laser induced forward transfer (LIFT). Firstly, the picosecond laser induced transfer mechanism of Ag films was revealed by numerical simulation; then, different-thickness Ag films were deposited on the AZO films by picosecond LIFT. When the film thickness is 3

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Imaging through scattering media via speckle autocorrelation is a popular method based on the optical memory effect. However, it fails if the amount of valid information acquired is insufficient due to a limited sensor size. In this Letter, we reveal a relationship between the detector and object sizes for the minimum requirement to ensure image reconstruction by defining a sam

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We experimentally demonstrated optical wireless power transfer (OWPT) using a near-infrared laser diode (LD) as the optical power transmitter. We considered a photovoltaic (PV) cell and a photodiode (PD) as the optical power receivers. We investigated the characteristics of the LD, PD, and PV cell in order to determine the optimum operating condition from the viewpoint of trans

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We demonstrate a novel multifunctional radar receiver scheme based on photonic parametric sampling. The working principle of photonic parametric sampling based on four-wave mixing (FWM) process is presented. To experimentally verify the multifunctional feasibility, the scheme is individually implemented to carry out a four-channel phased array radar reception and a dual-band ra

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為了精確地測量阿秒脈沖的特性,自主研制了一套具有高能量分辨率的阿秒條紋相機,該相機采用了電子飛行距離長達2 m的磁瓶式結構電子飛行時間譜儀,可在提高能量分辨率的同時具有較高的光電子收集效率;在該設備的光路系統中實現了NIR飛秒脈沖與XUV阿秒脈沖延時掃描的穩定精度<20 as(均方根)。實驗中采用雙光選通門技術整形飛秒脈沖的光電場,在氖氣池中產生了孤立阿秒脈沖。利用上述阿秒條紋相機測量該脈沖,獲得了

PDF全文 HTML全文 中國激光 | 2020,47(04):0415002
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通過引入長錐形增益光纖綜合抑制受激布里淵散射和模式不穩定效應,兼顧1030 nm波段信號光放大的高模式不穩定閾值特性,基于全光纖放大器實現了550 W的近衍射極限單頻光纖激光輸出,整個放大器的斜率效率達80%,最高功率時的光束質量測量值M2約為1.47;系統亮度的進一步提升受限于熱致模式不穩定效應。

PDF全文 HTML全文 中國激光 | 2020,47(04):0415001
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基于表面等離子體極化激元的傳輸特性和周期性光子晶體的光學特性,提出了一種在亞波長介質光柵-金屬Ag薄膜結構中產生離散態,在周期性光子晶體結構中產生連續態的亞波長介質光柵-金屬Ag薄膜-周期性光子晶體混合結構。通過對該結構進行理論分析和傳輸特性研究,闡述了該結構中Fano共振產生的機理,建立了基于角度調制的Fano共振傳感結構模型,并定量分析了結構參數對反射光譜曲線的影響。結果表明:當周期性光子晶體

PDF全文 HTML全文 中國激光 | 2020,47(04):0413001
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針對基于指示單光子源的測量設備無關量子密鑰分配協議存在基的依賴性問題和信源統計波動問題,研究了基于服從泊松分布的指示單光子源和軌道角動量的量子密鑰分配協議,并進行了統計波動分析。分析了對稱信道和非對稱信道下,該協議的單邊傳輸效率、密鑰生成速率與安全傳輸距離的關系,模擬了信源的統計波動對該協議密鑰生成速率和傳輸距離的影響。仿真結果表明,應用軌道角動量編碼解決了該協議基的依賴性問題,提高

PDF全文 HTML全文 中國激光 | 2020,47(04):0412001
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以丙烷-空氣擴散火焰為研究對象,聯合激光誘導熒光與激光誘導熾光,在不同探測波長下,對火焰中多環芳烴(PAH)的二維分布進行測量,分析火焰中PAH熒光信號的分布特征。結果表明:在丙烷擴散火焰燃燒中,小環PAH逐漸變為大環PAH,隨后形成碳煙;通過測量火焰不同位置處的熒光時間分辨信號發現,在相同的條件下,熒光波長越大,其對應的PAH環數越多,相對分子質量越大,熒光衰減時間越長;隨著火焰高度位置升高,熒光信號的衰減

PDF全文 HTML全文 中國激光 | 2020,47(04):0411002
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