Design and fabrication of a high-density 2D fiber array for holographic switching applications

被引:2
|
作者
Letort, Cedric [1 ]
Vinouze, Bruno [1 ]
Fracasso, Bruno [1 ]
机构
[1] ENST Bretagne, Dept Opt, UMR Foton 6082, Brest 3, France
关键词
optical fiber array; wavelength-selective switch; spatial light modulator; liquid crystal spatial; light modulator; binary-phase hologram;
D O I
10.1117/1.2911718
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Holographic two-dimensional beam steering using a pixel-lated spatial light modulator (SLM) is a flexible and accurate technique to implement advanced space-switching, building-block functions for optical network nodes. We present the design of a specific fiber array for large-capacity holographic switches. We use two-dimensional and irregular array topology to optimize the space-bandwidth product of the SLM and to avoid crosstalk due to the coupling of higher diffraction orders. The fiber-array module is integrated by inserting the fibres through a pair of etched silicon plates aligned and fixed using a steel mount. The device is tested through near-field and fiber-to-fiber free space coupling tests. An average fiber-to-fiber insertion loss of 1 dB is achieved for a prototype containing 64 fibers. (C) 2008 Society of Photo-Optical Instrumentation Engineers.
引用
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页数:9
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