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首页> 外文会议>Practical Holography V >Double dispersion from dichromated gelatin volume transmission gratings
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Double dispersion from dichromated gelatin volume transmission gratings

机译：重铬酸盐明胶体积透射光栅的双色散

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Abstract: The use of volume transmission gratings in a wavelength multiplexer can offer significant advantages over surface relief gratings in terms of efficiency and uniformity of response to different polarizations. The authors consider a double pass through the volume transmission grating obtained by placing a mirror behind the grating. This doubles the device dispersion while maintaining good peak diffraction efficiency ($GRT@90%) and polarization independence. The authors report the design compromise and fabrication of such volume gratings, produced in dichromated gelatin, targeted to efficiently cover reduced wavelength ranges in either the 1300 or 1500 nm telecommunications window. The experimental performance is described for a range of mirror backed gratings.!
机译：摘要：在波长复用器中使用体积透射光栅可以提供比表面起伏光栅明显的优势，就效率和对不同偏振的响应的均匀性而言。作者考虑了通过将透射镜放置在光栅后面获得的体积透射光栅的两次通过。这使器件色散加倍，同时保持良好的峰衍射效率（$ GRT @ 90％）和偏振无关性。作者报告了重铬酸盐明胶生产的这种体积光栅的设计折衷和制造，旨在有效覆盖1300或1500 nm电信窗口中减小的波长范围。描述了一系列镜背光栅的实验性能。

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