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  1. Rapid Production of Arbitrary Fiber Bragg Gratings using Femtosecond Laser Radiation

  2. Deep (up to -53 dB) fiber Bragg gratings of arbitrary design and wavelength were rapidly written in standard single-mode optical fiber (SMF-28) using 800 nm femtosecond laser radiation using point-by-point inscr iption.

  3. 所属分类：其它

    • 发布日期：2009-08-25
    • 文件大小：186368
    • 提供者：guofw

  1. Concave Gratings for Astronomical

  2. Concave gratings possess a number of characteristics which should make them of interest to earth-bound stellar spectroscopists. Evaluation of a number of specific spectrograph and spectrometer designs indicates that concave grating instruments can b

  3. 所属分类：其它

    • 发布日期：2009-09-24
    • 文件大小：1048576
    • 提供者：ZEMAX

  1. Holographic Diffraction Gratings

  2. Holographic Diffraction Gratings

  3. 所属分类：其它

    • 发布日期：2021-02-26
    • 文件大小：443392
    • 提供者：weixin_38667920

  1. Electrically controlled optical choppers based on holographic polymer dispersed liquid crystal gratings

  2. An electrically controlled optical chopper based on switchable holographic polymer dispersed liquid crystal (H-PDLC) gratings is demonstrated through a programmable, adjustable, and periodic external driving source. Compared with traditional mechanic

  3. 所属分类：其它

    • 发布日期：2021-02-26
    • 文件大小：943104
    • 提供者：weixin_38676500

  1. Characteristics of light polarization in magneto-optic fiber Bragg gratings with linear birefringence

  2. The coupling between guided optical waves in magneto-optic fiber Bragg gratings (MFBGs) with linear birefringence is investigated using the eigen-mode and coupled-mode approaches. The relationship between the polarization-dependent loss (PDL) and the

  3. 所属分类：其它

    • 发布日期：2021-02-26
    • 文件大小：245760
    • 提供者：weixin_38693084

  1. Coherent addition of gratings for chirped-pulse-amplified lasers based on near-field and far-field measurements

  2. The development of phased-array grating compressor is a crucial issue for high-energy, ultra-short pulse petawatt-class lasers. Almost all systems have adopted a tiled-grating approach to meet the size requirements for the compression gratings. We pr

  3. 所属分类：其它

    • 发布日期：2021-02-25
    • 文件大小：379904
    • 提供者：weixin_38523728

  1. Reflex optical sensor based on dual metal gratings with high angular sensitivity

  2. An interesting reflection phenomenon in a dual metal grating (DMG) structure is studied, which is related to the competition between Fabry-Perot (F-P) resonance effect and evanescent-field coupling effect inside the gap between the two composing sing

  3. 所属分类：其它

    • 发布日期：2021-02-25
    • 文件大小：574464
    • 提供者：weixin_38645862

  1. Coupled-mode analysis for single-helix chiral fiber gratings with small core-of fset

  2. Using conventional coupled-mode theory, a set of coupled-mode equations are formulated for single-helix chiral fiber long-period gratings. A helical-core fiber is analyzed as an example. The analysis is simple in mathematical form and intuitive in ph

  3. 所属分类：其它

    • 发布日期：2021-02-25
    • 文件大小：195584
    • 提供者：weixin_38632916

  1. Light trapping enhancement with combined front metal nanoparticles and back dif fraction gratings

  2. In this letter, a design with both metal nanoparticles and back diffraction gratings is put forward for enhancing the efficiency of thin film silicon solar cells. The coupling mechanism between the metal nanoparticles and silicon absorber layer, and

  3. 所属分类：其它

    • 发布日期：2021-02-25
    • 文件大小：790528
    • 提供者：weixin_38623366

  1. Laser-induced controllable chirped-pitch circular surface-relief diffraction gratings on AZO glass

  2. Chirped-pitch nanoscale circular surface-relief diffraction gratings were photoinscribed on thin films of a Disperse Red 1 functionalized material using a holographic technique. A truncated conical mirror splits and redirects a converging or divergin

  3. 所属分类：其它

    • 发布日期：2021-02-23
    • 文件大小：907264
    • 提供者：weixin_38625184

  1. Thermal characteristics of Fabry–Perot cavity based on regenerated fiber Bragg gratings

  2. The Letter reports the thermal stability and strain response of Fabry–Perot (FP) cavity under different high temperatures. The FP cavity was made by thermal regeneration of two identical cascaded fiber Bragg gratings (FBGs). It is demonstrated that t

  3. 所属分类：其它

    • 发布日期：2021-02-22
    • 文件大小：751616
    • 提供者：weixin_38612527

  1. Band-stop angular filtering with hump volume Bragg gratings

  2. A band-stop angular filter (BSF) based on hump volume Bragg gratings (HVBGs) is proposed. Band-stop filtering in a two-stage amplifier laser system is discussed and simulated. Simulation results show that small-scale self-focusing effects in the lase

  3. 所属分类：其它

    • 发布日期：2021-02-22
    • 文件大小：1048576
    • 提供者：weixin_38630091

  1. Study on polarization spectrum and annealing properties of 45°-tilted fiber gratings

  2. We have investigated the whole polarization-extinction-ratio (PER) spectrum and annealing properties of 45°-tilted fiber gratings (45°-TFGs). Experimental results show the PER spectrum of 45°-TFGs is a Gaussian-like profile and covers a 540?nm bandwi

  3. 所属分类：其它

    • 发布日期：2021-02-22
    • 文件大小：896000
    • 提供者：weixin_38719475

  1. FM-to-AM conversion in angular filtering based on transmitted volume Bragg gratings

  2. FM-to-AM conversion for angular filtering based on transmitted volume Bragg gratings (TBGs) is discussed. Simulation results show that a narrower spectral selectivity of TBGs led to stronger FM-to-AM conversion. Good angular selectivity and a wide ba

  3. 所属分类：其它

    • 发布日期：2021-02-22
    • 文件大小：2097152
    • 提供者：weixin_38588520

  1. Random Bragg-gratings-based narrow linewidth random fiber laser with a

  2. A new structure of short-cavity random fiber laser (RFL) with narrow linewidth lasing is proposed. A

  3. 所属分类：其它

    • 发布日期：2021-02-22
    • 文件大小：1048576
    • 提供者：weixin_38616809

  1. Super-bunched focusing with chirped random-phase gratings

  2. Chirped random-phase gratings are designed to produce experimentally a super-bunched focusing effect with a high bunching peak value of

  3. 所属分类：其它

    • 发布日期：2021-02-22
    • 文件大小：1048576
    • 提供者：weixin_38656226

  1. Angled cavity photonic crystal lasers with asymmetrical high-order surface gratings

  2. Angled cavity photonic crystal lasers with asymmetrical high-order surface gratings

  3. 所属分类：其它

    • 发布日期：2021-02-21
    • 文件大小：2097152
    • 提供者：weixin_38559866

  1. Numerical and experimental investigations of chirped-gratings-based Bragg-reflecting-coupler with multiple couple length

  2. Influences of gratings' chirp and coupler's length on the spectral responses of Bragg-reflecting-coupler are investigated detailedly. Both numerical and experimental results demonstrate that signals outside of the gratings' stopband can be guided to

  3. 所属分类：其它

    • 发布日期：2021-02-21
    • 文件大小：487424
    • 提供者：weixin_38707862

  1. Formation mechanisms of multiple holographic gratings in spirooxazine-doped polymer films

  2. Multiple holographic gratings were stored in the same location of spirooxazine doped polymer filmsusing peristrophic multiplexing techniques. Accompanied by UV irradiation, three sets of holographicgratings with different directions were recorded and

  3. 所属分类：其它

    • 发布日期：2021-02-21
    • 文件大小：812032
    • 提供者：weixin_38623919

  1. Fabrication of x-ray absorption gratings via micro-casting for grating-based phase contrast imaging

  2. Grating-based x-ray differential phase contrast (DPC) imaging has shown huge potential. Forbroad applications, it is essential that the key components are low-cost, especially theabsorption gratings. We therefore proposed and developed a micro-castin

  3. 所属分类：其它

    • 发布日期：2021-02-21
    • 文件大小：1048576
    • 提供者：weixin_38587155
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