Sub-wavelength cladding mid-infrared devices

被引：0

作者：

Penades, Jordi Soler ^{[1
]}

Nedeljkovic, Milos ^{[1
]}

Khokhar, Ali. Z. ^{[1
]}

Mashanovich, Goran Z. ^{[1
]}

Ortega-Monux, Alejandro ^{[2
]}

Wanguermert-Perez, Gonzalo ^{[2
]}

Halir, Robert ^{[2
]}

Molina-Fernandez, Inigo ^{[2
]}

Cheben, Pavel ^{[3
]}

机构：

[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

[2] Univ Malaga, Dept Ingn Comunicac, E-29071 Malaga, Spain

[3] Natl Res Council Canada, Ottawa, ON K1A 0R6, Canada

来源：

2015 IEEE 12TH INTERNATIONAL CONFERENCE ON GROUP IV PHOTONICS (GFP) | 2015年

关键词：

D O I：

暂无

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Suspended structures enable low loss propagation in silicon waveguides for mid-infrared wavelengths by removing the lossy buried oxide (BOX) layer. We previously demonstrated suspended waveguides with a silicon core and a sub-wavelength grating (SWG) lateral cladding, which allows access to the buried oxide layer for under-etching with hydrofluoric acid. Here we show that bends, multimode interference couplers (MMI) and Mach-Zehnder interferometers (MZI) can be successfully implemented in this platform. Specifically, we report waveguides with propagation losses of 1.2 dB/cm, 90 degrees bends with 0.03 dB/bend loss, compact MMI couplers with imbalances of 0.5 dB, and MZI structures with extinction ratios in excess of 24 dB.

引用

页码：183 / 184

页数：2

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