An ultra-broadband fiber grating coupler with focusing curved subwavelength structures

Q Zhong, W Shi, Y Wang, L Chrostowski, DV Plant - OFC 2014, 2014 - ieeexplore.ieee.org
An ultra-broadband fiber grating coupler with focusing curved subwavelength structures
Page 1 Th2A.15.pdf OFC 2014 © OSA 2014 An Ultra-Broadband Fiber Grating Coupler with …

Folded shallow grating couplers with minimal back reflection and extended coupling bandwidth for robust coupling to multimode fibers

M Tokushima, J Ushida, K Kurata - Journal of Lightwave …, 2016 - ieeexplore.ieee.org
Grating couplers (GCs) applicable to isolator-free transceiver (TX) chips are desired. In this
paper, we numerically and experimentally demonstrate that folded shallow GCs can be used …

Increasing the grating coupler bandwidth with a high numerical-aperture fiber

C Xiang, HK Tsang, Z Cheng… - … Conference on Group IV …, 2014 - ieeexplore.ieee.org
We propose and demonstrate that a small core high numerical-aperture single mode fiber
will increase the coupling bandwidth of a silicon waveguide grating coupler. Without …

Optical coupling between a long-period fiber grating and a parallel tilted fiber Bragg grating

Y Liu, Q Liu, KS Chiang - Optics letters, 2009 - opg.optica.org
We experimentally demonstrate the contradirectional optical coupling between two parallel
fibers that contain a long-period fiber grating and a tilted fiber Bragg grating, respectively …

Compact double-part grating coupler for higher-order mode coupling

Y Lai, Y Yu, S Fu, J Xu, PP Shum, X Zhang - Optics letters, 2018 - opg.optica.org
We propose and demonstrate a compact and efficient grating coupler for first-order mode
fiber-to-chip coupling. The coupler is configured by a double-part grating structure combined …

Record bandwidth, spectrally flat coupling with microbend gratings in dispersion-tailored fibers

S Ramachandran, MF Yan, E Monberg… - IEEE Photonics …, 2003 - ieeexplore.ieee.org
We demonstrate resonant grating couplers with the broadest bandwidth (565 nm) reported
to date, using microbend gratings in dispersion-optimized few-mode fibers. Control of modal …

Design for broadband high-efficiency grating couplers

Z Xiao, F Luan, TY Liow, J Zhang, P Shum - Optics letters, 2012 - opg.optica.org
In this Letter, we propose general optimization methods to design broadband high-efficiency
grating couplers for planar waveguides. We attribute the coupling bandwidth to the …

Dual-etch apodised grating couplers for efficient fibre-chip coupling near 1310 nm wavelength

X Chen, DJ Thomson, L Crudginton, AZ Khokhar… - Optics …, 2017 - opg.optica.org
We present our recent work on fibre-chip grating couplers operating around 1310 nm. For
the first time, we demonstrate the combination of dual-etch and apodization design …

Mid-infrared subwavelength grating coupler

W Chen, D Wan, J Wang, Z Yi… - 2021 Asia …, 2021 - ieeexplore.ieee.org
Mid-infrared subwavelength grating coupler Page 1 Mid-infrared subwavelength grating coupler
Weicheng Chen1,2, Dian Wan1,2, Jiaqi Wang3,*, Zou Yi4, Zhenzhou Cheng1,2,*, Tiegen Liu1,2 …

CMOS-compatible high efficiency double-etched apodized waveguide grating coupler

C Li, H Zhang, M Yu, GQ Lo - Optics express, 2013 - opg.optica.org
We present a high efficiency double-etched apodized fiber-to-waveguide grating coupler on
a silicon-on-insulator substrate, which can be fabricated using deep UV photolithography …