scholarly journals Low propagation loss SiN optical waveguide prepared by optimal low-hydrogen module

2008 ◽  
Vol 16 (25) ◽  
pp. 20809 ◽  
Author(s):  
S. C. Mao ◽  
S. H. Tao ◽  
Y. L. Xu ◽  
X. W. Sun ◽  
M. B. Yu ◽  
...  
2010 ◽  
Vol 30 (1) ◽  
pp. 43-46
Author(s):  
孙晶晶 Sun Jingjing ◽  
桑明煌 Sang Minghuang ◽  
曹庄琪 Cao Zhuangqi ◽  
李红根 Li Honggen

Author(s):  
Dai HASHIMOTO ◽  
Takeru AMANO ◽  
Takamichi KUBOTA ◽  
Yoshinobu OKANO ◽  
Akihiro NORIKI

2019 ◽  
Vol 2 (1) ◽  
pp. 76
Author(s):  
Wildan Panji Tresna ◽  
Takeo Maruyama

Slab waveguide is one of the simplest types of optical waveguide, the confinement factor is only determined by the thickness of one side so that the propagation of light passing through it will be confined in the material. The slab waveguide is built from Si as the core material and SiO2 as the substrate. The use of various optical waveguides is very dependent on the objectives to be achieved in its application, for it is very important to know the characteristics of each optical waveguide. In this paper the writer wants to know the characteristics of a slab waveguide, specifically with regard to propagation loss. The simulation results show that the propagation loss in the slab waveguide design that the authors propose is around 0.1dB / mm in TE mode conditions. The occurrence of propagation loss in the simulation is likely due to imperfections in determining the effective material index in the design of the slab waveguide.


2005 ◽  
Vol 256 (1-3) ◽  
pp. 68-72 ◽  
Author(s):  
Shaowu Chen ◽  
Qingfeng Yan ◽  
Qingyang Xu ◽  
Zhongchao Fan ◽  
Jingwei Liu

2020 ◽  
Vol 3 (4) ◽  
pp. 282-289
Author(s):  
Hendry Izaac Elim

The excellency of a superhybrid material based TiO2 nanoparticles (NPs) has been improved by the surface modification of the TiO2 with a coupling agent of 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane to render them highly compatible with organic monomer mixtures avoiding aggregation. Such TiO2 NPs are then attached with a polymer. The border of linear refractive index of hybrid TiO2 NPs-polymer is enhanced in comparison with that of pure epoxy resin or polymer. Nonlinear refractive index and nonlinear absorption coefficient of hybrid TiO2 NPs-polymer are measured by femtosecond Z-scan technique at 800 nm. This hybrid material has been fabricated and studied to have a great potential for ultrafast optical waveguide in optical communication quantified by the propagation loss of the hybrid TiO2 NPs-polymer optical waveguide in the range of 4.79 to 11.90 dB/cm, which is depending on the volume percent of TiO2 NPs


2004 ◽  
Vol 834 ◽  
Author(s):  
Vadym Zayets

ABSTRACTDiluted magnetic semiconductor Cd1-xMnxTe was proposed as a magneto-optic material for waveguide optical isolator. Waveguide propagation loss below 1 dB/cm, complete magneto-optical mode conversion and optical isolation of 20 dB were demonstrated with Cd1-xMnxTe waveguides grown on GaAs substrate. The high isolation ratio, high magneto-optic effect and low propagation loss achieved in the magneto-optical waveguide grown on the semiconductor substrate shows the feasibility of monolithical integration of an optical isolator with semiconductor optoelectronic devices.


2001 ◽  
Vol 10 (04) ◽  
pp. 409-414 ◽  
Author(s):  
SUDHIR KUMAR SHARMA

Conducting polymer is a physical mixture of non-conducting polymer with electrically conducting material. Polyaniline is a class of conducting polymers that exists in four different forms depending on protonation and doping of the base. Starting with aniline, polyaniline is synthesized and doped with two different metals namely iron and aluminum separately. Using these films optical waveguides are fabricated. Their characteristics viz. Refractive index, propagation loss, number of modes etc., are studied using prism coupling technique. The results are discussed.


2020 ◽  
Vol 140 (12) ◽  
pp. 369-373
Author(s):  
Hiroyuki Nikkuni ◽  
Chizuru Numata ◽  
Ryoto Yamaji ◽  
Hiroshi Ito ◽  
Yoshio Kawamata

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