High-efficiency fully etched fiber-chip grating couplers with subwavelength structures for datacom and telecom applications

2015 ◽  
Author(s):  
Daniel Benedikovic ◽  
Pavel Cheben ◽  
Jens H. Schmid ◽  
Dan-Xia Xu ◽  
Jean Lapointe ◽  
...  
Keyword(s):  
High Efficiency ◽  
Subwavelength Structures ◽  
Grating Couplers

High-efficiency subwavelength-engineered surface grating couplers in SOI and DSOI

2014 ◽  
Author(s):  
Daniel Benedikovic ◽  
Pavel Cheben ◽  
Jens H. Schmid ◽  
Dan-Xia Xu ◽  
Shurui Wang ◽  
...  
Keyword(s):  
High Efficiency ◽  
Grating Couplers ◽  
Surface Grating

Colorless grating couplers realized by interleaving dispersion engineered subwavelength structures

2013 ◽  
Vol 38 (18) ◽  
pp. 3588 ◽  
Author(s):  
Xiaochuan Xu ◽  
Harish Subbaraman ◽  
John Covey ◽  
David Kwong ◽  
Amir Hosseini ◽  
...  
Keyword(s):  
Subwavelength Structures ◽  
Grating Couplers

scholarly journals High-Efficiency SOI Fiber-to-Chip Grating Couplers and Low-Loss Waveguides for the Short-Wave Infrared

2012 ◽  
Vol 24 (17) ◽  
pp. 1536-1538 ◽  
Author(s):  
Nannicha Hattasan ◽  
Bart Kuyken ◽  
Francois Leo ◽  
Eva M. P. Ryckeboer ◽  
Diedrik Vermeulen ◽  
...  
Keyword(s):  
High Efficiency ◽  
Short Wave ◽  
Low Loss ◽  
Grating Couplers ◽  
Short Wave Infrared

scholarly journals Light injection in SOI microwaveguides using high-efficiency grating couplers

2006 ◽  
Vol 24 (10) ◽  
pp. 3810-3815 ◽  
Author(s):  
Vivien ◽  
Pascal ◽  
Lardenois ◽  
Marris-Morini ◽  
Cassan ◽  
...  
Keyword(s):  
High Efficiency ◽  
Grating Couplers

scholarly journals Broadband High-Efficiency Grating Couplers for Perfectly Vertical Fiber-to-Chip Coupling Enhanced by Fabry-Perot-like Cavity

Micromachines ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 859
Author(s):  
Zan Zhang ◽  
Beiju Huang ◽  
Zanyun Zhang ◽  
Chuantong Cheng ◽  
Bing Bai ◽  
...  
Keyword(s):  
High Efficiency ◽  
Coupling Efficiency ◽  
Light Sources ◽  
Feature Size ◽  
Grating Couplers ◽  
Fabrication Cost ◽  
Fabry Perot ◽  
Dimensional Parameters ◽  
Minimum Feature Size ◽  
Deep Uv

We propose a broadband high-efficiency grating coupler for perfectly vertical fiber-to-chip coupling. The up-reflection is reduced, hence enhanced coupling efficiency is achieved with the help of a Fabry-Perot-like cavity composed of a silicon nitride reflector and the grating itself. With the theory of the Fabry-Perot cavity, the dimensional parameters of the coupler are investigated. With the optimized parameters, up-reflection in the C-band is reduced from 10.6% to 5%, resulting in an enhanced coupling efficiency of 80.3%, with a 1-dB bandwidth of 58 nm, which covers the entire C-band. The minimum feature size of the proposed structure is over 219 nm, which makes our design easy to fabricate through 248 nm deep-UV lithography, and lowers the fabrication cost. The proposed design has potential in efficient and fabrication-tolerant interfacing applications, between off-chip light sources and integrated chips that can be mass-produced.

Low temperature PECVD deposited Silicon Nitride grating couplers with high efficiency

2019 ◽  
Author(s):  
Siddharth Nambiar ◽  
Abhai Kumar ◽  
Rakshitha Kallega ◽  
Praveen Ranganath ◽  
Shankar K Selvaraja
Keyword(s):  
Silicon Nitride ◽  
Low Temperature ◽  
High Efficiency ◽  
Grating Couplers

High-efficiency Chirped Grating Couplers on Lithium Niobate on Insulator

2021 ◽  
Author(s):  
Shuting Kang ◽  
Ru Zhang ◽  
Zhenzhong Hao ◽  
Di Jia ◽  
Feng Gao ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
High Efficiency ◽  
Grating Couplers ◽  
Chirped Grating

High-Efficiency Grating Couplers Near 1310 nm Fabricated by 248-nm DUV Lithography

2014 ◽  
Vol 26 (15) ◽  
pp. 1569-1572 ◽  
Author(s):  
Ruizhi Shi ◽  
Hang Guan ◽  
Ari Novack ◽  
Matthew Streshinsky ◽  
Andy Eu-Jin Lim ◽  
...  
Keyword(s):  
High Efficiency ◽  
Grating Couplers
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