Ultrasmall polarization splitter based on silicon wire waveguides

被引：239

作者：

Fukuda, Hiroshi ^{[1
]}

Yamada, Koji ^{[1
]}

Tsuchizawa, Tai ^{[1
]}

Watanabe, Toshifumi ^{[1
]}

Shinojima, Hiroyuki ^{[1
]}

Itabashi, Sei-ichi ^{[1
]}

机构：

[1] NTT Corp, Microsyst Integrat Labs, Atsugi, Kanagawa, Japan

来源：

OPTICS EXPRESS | 2006年 / 14卷 / 25期

关键词：

D O I：

10.1364/OE.14.012401

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe an ultrasmall polarization splitter based on a simple directional coupler consisting of silicon wire waveguides. The size is only 7 x 16 mu m(2), and the polarization extinction ratio is about 15 dB for a single coupler. A double-coupler structure improves the extinction ratio to over 20 dB. The excess loss is smaller than 0.5 dB for both types of device. In the device, the shape of the high-speed waveform is retained at any angle of polarization. Our polarization splitter represents a first step towards accomplishing an ultrasmall optical circuit with polarization diversity based on silicon wire waveguides. (c) 2006 Optical Society of America.

引用

页码：12401 / 12408

页数：8

共 12 条

[1] Four-wave mixing in silicon wire waveguides [J].

Fukuda, H ;

Yamada, K ;

Shoji, T ;

Takahashi, M ;

Tsuchizawa, T ;

Watanabe, T ;

Takahashi, J ;

Itabashi, S .

OPTICS EXPRESS, 2005, 13 (12) :4629-4637

[2] A compact silicon-on-insulator polarization splitter [J].

Kiyat, I ;

Aydinli, A ;

Dagli, N .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2005, 17 (01) :100-102

[3] Effect of size and roughness on light transmission in a Si/SiO2 waveguide:: Experiments and model [J].

Lee, KK ;

Lim, DR ;

Luan, HC ;

Agarwal, A ;

Foresi, J ;

Kimerling, LC .

APPLIED PHYSICS LETTERS, 2000, 77 (11) :1617-1619

[4] Low loss mode size converter from 0.3 μm square Si wire waveguides to singlemode fibres [J].

Shoji, T ;

Tsuchizawa, T ;

Watanabe, T ;

Yamada, K ;

Morita, H .

ELECTRONICS LETTERS, 2002, 38 (25) :1669-1670

[5] A compact two-dimensional grating coupler used as a polarization splitter [J].

Taillaert, D ;

Chong, H ;

Borel, PI ;

Frandsen, LH ;

De La Rue, RM ;

Baets, R .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2003, 15 (09) :1249-1251

[6] Microphotonics devices based on silicon microfabrication technology [J].

Tsuchizawa, T ;

Yamada, K ;

Fukuda, H ;

Watanabe, T ;

Takahashi, J ;

Takahashi, M ;

Shoji, T ;

Tamechika, E ;

Itabashi, S ;

Morita, H .

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 2005, 11 (01) :232-240

[7] A short polarization splitter without metal overlays on InGaAsP-InP [J].

vanderTol, JJGM ;

Pedersen, JW ;

Metaal, EG ;

vanGaalen, JJW ;

Oei, YS ;

Groen, FH .

IEEE PHOTONICS TECHNOLOGY LETTERS, 1997, 9 (02) :209-211

[8] Integrated mode-evolution-based polarization splitter [J].

Watts, MR ;

Haus, HA ;

Ippen, EP .

OPTICS LETTERS, 2005, 30 (09) :967-969

[9]

WATTS MR, 2005, OFC2005

[10] Silicon-wire-based ultrasmall lattice filters with wide free spectral ranges [J].

Yamada, K ;

Shoji, T ;

Tsuchizawa, T ;

Watanabe, T ;

Takahashi, J ;

Itabashi, S .

OPTICS LETTERS, 2003, 28 (18) :1663-1664

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