Polarization-Insensitive Narrow Band Filter with a Symmetrical Metal-Cladding Optical Waveguide
LI Hong-Gen, CAO Zhuang-Qi, LU Hai-Feng, SHEN Qi-Shun
Department of Physics, Shanghai Jiao Tong University, Shanghai 200240
Polarization-Insensitive Narrow Band Filter with a Symmetrical Metal-Cladding Optical Waveguide
LI Hong-Gen;CAO Zhuang-Qi;LU Hai-Feng; SHEN Qi-Shun
Department of Physics, Shanghai Jiao Tong University, Shanghai 200240
关键词 ：
42.79.Ci ,
42.79.Gn ,
42.82.Et
Abstract ： We demonstrate the promising configurations that permit very narrow spectral filtering. The waveguide filter consists of a glass slab with an anomalous thickness of about 500μm, which is sandwiched between two pre-coated metal films. By using the free-space coupling technique, a polarization-insensitive and tunable notch filter with a spectral bandwidth as narrow as 0.08nm has been obtained due to the excitation of ultrahigh-order modes of the symmetrical metal-cladding optical waveguide.
Key words ：
42.79.Ci
42.79.Gn
42.82.Et
出版日期: 2006-03-01
:
42.79.Ci
(Filters, zone plates, and polarizers)
42.79.Gn
(Optical waveguides and couplers)
42.82.Et
(Waveguides, couplers, and arrays)
引用本文:
LI Hong-Gen;CAO Zhuang-Qi;LU Hai-Feng; SHEN Qi-Shun. Polarization-Insensitive Narrow Band Filter with a Symmetrical Metal-Cladding Optical Waveguide[J]. 中国物理快报, 2006, 23(3): 643-644.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2006/V23/I3/643
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