Ultra-compact Broadband High Efficient Grating Coupler

被引：0

作者：

Asaduzzaman, Md ^{[1
,2
]}

Bakaul, Masuduzzaman ^{[1
,3
]}

Skafidas, Stan ^{[1
]}

Khandokar, Md Rezwanul Haque ^{[1
,2
]}

机构：

[1] Univ Melbourne, Dept Elect & Elect Engn, Parkville, Vic 3010, Australia

[2] Univ Melbourne, NICTA Natl ICT Australia Ltd, Parkville, Vic 3010, Australia

[3] Monash Univ Malaysia, Sch Engn, Bandar Sunway 47500, Selangor, Malaysia

来源：

2015 IEEE INTERNATIONAL BROADBAND AND PHOTONICS CONFERENCE (IBP) | 2015年

关键词：

Grating coupler; Diffrcation grating; Silicon photonics; Photonic integrated circuits; OPTICAL-FIBERS; PLATFORM;

D O I：

暂无

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an ultra-compact metal reflector based grating coupler for coupling light between optical fiber and nano photonic waveguides. The coupler is designed and simulated based on Finite Difference Time Domain (FDTD) method. The lateral dimension of the grating waveguide has been tapered down from 10 mu m to 400 nm within 8 mu m length to interface with nano photonic waveguides using half overlay triangular waveguides. We have achieved a coupling efficiency of 94% (-0.25dB) using metal reflector and after the cascaded triangular waveguides, the efficiency remains as high as 80% (-0.95dB) with 1-dB bandwidth of 80 nm. The total length of the coupler is as low as 24 mu m which provides very small foot print in silicon (Si) photonic ICs.

引用

页码：36 / 39

页数：4

共 16 条

[1]

[Anonymous], C LAS EL

[2] Broadband focusing grating couplers for suspended-membrane waveguides [J].