Determining waveguide coupling efficiency by observing reflected light from the end face

2002 ◽  
Author(s):  
R. Fan ◽  
N. Delen ◽  
B. Hooker
Keyword(s):  
Coupling Efficiency ◽  
Reflected Light ◽  
Waveguide Coupling

scholarly journals Coherent characterisation of a single molecule in a photonic black box

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Sebastien Boissier ◽  
Ross C. Schofield ◽  
Lin Jin ◽  
Anna Ovvyan ◽  
Salahuddin Nur ◽  
...  
Keyword(s):  
Single Molecule ◽  
Coupling Efficiency ◽  
Black Box ◽  
Measured Spectrum ◽  
Photonic Structure ◽  
Quantum Emitter ◽  
Precise Knowledge ◽  
Transmission And Reflection Spectra ◽  
Waveguide Coupling ◽  
Transmission And Reflection

AbstractExtinction spectroscopy is a powerful tool for demonstrating the coupling of a single quantum emitter to a photonic structure. However, it can be challenging in all but the simplest of geometries to deduce an accurate value of the coupling efficiency from the measured spectrum. Here we develop a theoretical framework to deduce the coupling efficiency from the measured transmission and reflection spectra without precise knowledge of the photonic environment. We then consider the case of a waveguide interrupted by a transverse cut in which an emitter is placed. We apply that theory to a silicon nitride waveguide interrupted by a gap filled with anthracene that is doped with dibenzoterrylene molecules. We describe the fabrication of these devices, and experimentally characterise the waveguide coupling of a single molecule in the gap.

On the role of evanescent modes and group index tapering in slow light photonic crystal waveguide coupling efficiency

2011 ◽  
Vol 98 (3) ◽  
pp. 031107 ◽  
Author(s):  
Amir Hosseini ◽  
Xiaochuan Xu ◽  
David N. Kwong ◽  
Harish Subbaraman ◽  
Wei Jiang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Slow Light ◽  
Coupling Efficiency ◽  
Group Index ◽  
Photonic Crystal Waveguide ◽  
Waveguide Coupling

Improving fiber to waveguide coupling efficiency by use of a highly germanium-doped thermally expanded core fiber

2012 ◽  
Vol 44 (3) ◽  
pp. 679-682 ◽  
Author(s):  
Huaixi Chen ◽  
Yishen Qiu ◽  
Gaoming Li ◽  
Hao Zhang ◽  
Qun Chen
Keyword(s):  
Coupling Efficiency ◽  
Core Fiber ◽  
Waveguide Coupling

scholarly journals Improving coupling efficiency of fiber-waveguide coupling with a double-tip coupler

2008 ◽  
Vol 16 (25) ◽  
pp. 20803 ◽  
Author(s):  
H. Tao ◽  
Junfeng Song ◽  
Qing Fang ◽  
Mingbin Yu ◽  
Guoqiang Lo ◽  
...  
Keyword(s):  
Coupling Efficiency ◽  
Fiber Waveguide ◽  
Waveguide Coupling

Waveguide coupling efficiency in thin-film homogeneous lenses

1990 ◽  
Vol 137 (4) ◽  
pp. 255 ◽  
Author(s):  
P. Jiang ◽  
W. Zhang ◽  
P.J.R. Laybourn
Keyword(s):  
Thin Film ◽  
Coupling Efficiency ◽  
Waveguide Coupling

Periodic microstructures for improved lens-to-waveguide coupling efficiency in microlens array planar solar concentrators

2015 ◽  
Vol 5 (1) ◽  
pp. 052099 ◽  
Author(s):  
Ravi S. Hegde ◽  
Hong Son Chu ◽  
Kiansoo Ong ◽  
Lakshmi Kanta Bera ◽  
Ching Eng Png
Keyword(s):  
Coupling Efficiency ◽  
Microlens Array ◽  
Solar Concentrators ◽  
Periodic Microstructures ◽  
Waveguide Coupling

High-efficiency broadband light coupling between optical fibers and photonic integrated circuits

Nanophotonics ◽  
2018 ◽  
Vol 7 (12) ◽  
pp. 1845-1864 ◽  
Author(s):  
Gyeongho Son ◽  
Seungjun Han ◽  
Jongwoo Park ◽  
Kyungmok Kwon ◽  
Kyoungsik Yu
Keyword(s):  
Integrated Circuits ◽  
Optical Fibers ◽  
Optical Switching ◽  
High Efficiency ◽  
Photonic Integrated Circuits ◽  
Coupling Efficiency ◽  
Optical Signal ◽  
Coupling Methods ◽  
Light Coupling ◽  
Waveguide Coupling

AbstractEfficient light energy transfer between optical waveguides has been a critical issue in various areas of photonics and optoelectronics. Especially, the light coupling between optical fibers and integrated waveguide structures provides essential input-output interfaces for photonic integrated circuits (PICs) and plays a crucial role in reliable optical signal transport for a number of applications, such as optical interconnects, optical switching, and integrated quantum optics. Significant efforts have been made to improve light coupling properties, including coupling efficiency, bandwidth, polarization dependence, alignment tolerance, as well as packing density. In this review article, we survey three major light coupling methods between optical fibers and integrated waveguides: end-fire coupling, diffraction grating-based coupling, and adiabatic coupling. Although these waveguide coupling methods are different in terms of their operating principles and physical implementations, they have gradually adopted various nanophotonic structures and techniques to improve the light coupling properties as our understanding to the behavior of light and nano-fabrication technology advances. We compare the pros and cons of each light coupling method and provide an overview of the recent developments in waveguide coupling between optical fibers and integrated photonic circuits.

Study of waveguide coupling efficiency in hybrid silicon lasers

2008 ◽  
Vol 4 (4) ◽  
pp. 239-242
Author(s):  
Qi-jiang Ran ◽  
Pei-de Han ◽  
Yu-jun Quan ◽  
Li-peng Gao ◽  
Fan-ping Zeng ◽  
...  
Keyword(s):  
Coupling Efficiency ◽  
Waveguide Coupling ◽  
Hybrid Silicon ◽  
Silicon Lasers
Sign in / Sign up

Export Citation Format

Share Document