scholarly journals High efficiency silicon nitride surface grating couplers

2008 ◽  
Vol 16 (1) ◽  
pp. 328 ◽  
Author(s):  
Guillaume Maire ◽  
Laurent Vivien ◽  
Guillaume Sattler ◽  
Andrzej Kazmierczak ◽  
Benito Sanchez ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
High Efficiency ◽  
Grating Couplers ◽  
Surface Grating

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

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

scholarly journals High efficiency DBR assisted grating chirp generators for silicon nitride fiber-chip coupling

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Siddharth Nambiar ◽  
Praveen Ranganath ◽  
Rakshitha Kallega ◽  
Shankar Kumar Selvaraja
Keyword(s):  
Silicon Nitride ◽  
Film Thickness ◽  
Numerical Simulations ◽  
High Efficiency ◽  
Promising Material ◽  
Peak Efficiency ◽  
Grating Couplers ◽  
Band Region ◽  
Index Contrast ◽  
L Band

AbstractSilicon Nitride (SiN) is emerging as a promising material for a variety of integrated photonic applications. Given its low index contrast however, a key challenge remains to design efficient couplers for the numerous platforms in SiN photonics portfolio. Using a combination of bottom reflector and a chirp generating algorithm, we propose and demonstrate high efficiency, grating couplers on two distinct SiN platforms. For a partially etched grating on 500 nm thick SiN, a calculated peak efficiency of −0.5 dB/coupler is predicted, while for a fully etched grating on 400 nm thick SiN, an efficiency of −0.4 dB/coupler is predicted. Experimentally measured coupling efficiencies are observed to be −1.17 and −1.24 dB/coupler for the partial and fully etched grating couplers respectively in the C-L band region. Furthermore, through numerical simulations, it is shown that the chirping algorithm can be implemented in eight additional combinations comprising SiN film thickness between 300–700 nm as well as alternate claddings, to achieve a per coupler loss between −0.33 to −0.65 dB.

scholarly journals Breaking the Coupling Efficiency–Bandwidth Trade‐Off in Surface Grating Couplers Using Zero‐Order Radiation

2021 ◽  
pp. 2000542
Author(s):  
Alejandro Sánchez‐Postigo ◽  
Robert Halir ◽  
J. Gonzalo Wangüemert‐Pérez ◽  
Alejandro Ortega‐Moñux ◽  
Shurui Wang ◽  
...  
Keyword(s):  
Coupling Efficiency ◽  
Zero Order ◽  
Grating Couplers ◽  
Trade Off ◽  
Surface Grating

scholarly journals High‐efficiency single etch step apodized surface grating coupler using subwavelength structure

2014 ◽  
Vol 8 (6) ◽  
Author(s):  
Daniel Benedikovic ◽  
Pavel Cheben ◽  
Jens H. Schmid ◽  
Dan‐Xia Xu ◽  
Jean Lapointe ◽  
...  
Keyword(s):  
High Efficiency ◽  
Grating Coupler ◽  
Subwavelength Structure ◽  
Surface Grating

High efficiency silicon nitride grating coupler

2013 ◽  
Vol 115 (1) ◽  
pp. 79-82 ◽  
Author(s):  
Huijuan Zhang ◽  
Chao Li ◽  
Xiaoguang Tu ◽  
Xianshu Luo ◽  
Mingbin Yu ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
High Efficiency ◽  
Grating Coupler
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