A Review of Multimode Interference Polymer Thermo-Optic Switch from the Fundamental Perspective

2020 ◽  
Vol 17 (2) ◽  
pp. 673-680
Author(s):  
N. S. Ahmad ◽  
M. Yaacob ◽  
M. B. Othman ◽  
N. H. Ngajikin
Keyword(s):  
Polymer Material ◽  
Optical Switch ◽  
Optical Devices ◽  
Optical Switches ◽  
Multimode Interference ◽  
Low Loss ◽  
Comprehensive Overview ◽  
Compact Size ◽  
All Optical ◽  
Base Polymer

Although extensive research has been carried out in optical communication, optical devices based on polymer material have a great interest due to its pertinent advantages which include versatility and reduction fabrication cost. Amongst all-optical devices, there has been a growing requirement for optical switches. In order to implement them efficiently, the combination of MMI structure with a polymer material produced an optical switch with ultra-compact size, low loss, and easiness of fabrication. Therefore, a comprehensive overview of structural properties, material specification and switching mechanisms of multimode interference (MMI) focusing on thermo optic switch base polymer material are briefly described in this paper. We believe, this review paper can provide good information for future switch development in optical networking.

scholarly journals All-Optical Modified Discrete Cosine Transform (MDCT) Using MMI Structures

2012 ◽  
Author(s):  
Le Trung Thanh ◽  
Truong Cao Dung
Keyword(s):  
Video Processing ◽  
Beam Propagation Method ◽  
Digital Signal ◽  
Silicon On Insulator ◽  
Multimode Interference ◽  
Novel Approach ◽  
Compact Size ◽  
All Optical ◽  
Signal Image ◽  
2D And 3D

The Modified Discrete Consine Transform (MDCT) have found applications in digital signal, image and video processing and particularly in transform coding systerm for data compression and decompression. Multimode interference (MMI) in optical silicon on insulator (SOI) waveguides is attractive for realizing all-optical MDCT transforms as they have the advantages of low loss, ultra-compact size and excellent fabrication tolerances. In this paper, for the first time, a novel approach to realize all-opptical MDCT based on multimode interference structures on silicon on insulator platform is proposed. Base on the transfer matrix method, the analytical expressions describing the characteristics of the MMI structures are derived. Designs of the proposed devices are then verified and optimized using 2D and 3D BPM (Beam propagation method( simulations.

scholarly journals Investigating the reliability of all-optical switches in transient mode

2021 ◽  
Vol 2091 (1) ◽  
pp. 012039
Author(s):  
E A Barabanova ◽  
K A Vytovtov ◽  
V M Vishnevsky ◽  
A V Dvorkovich ◽  
V F Shurshev
Keyword(s):  
Markov Process ◽  
Transient Process ◽  
Analytical Method ◽  
Optical Switch ◽  
Optical Switches ◽  
Process Theory ◽  
Reliability Indicators ◽  
Transient Mode ◽  
All Optical ◽  
All Optical Switch

Abstract In this paper the scheme of 8×8 all-optical switch with two duplicating switching elements and the algorithm of its functioning are presented. For calculating the reliability of all-optical switches, the analytical method based on the Markov process theory is presented. This method allows us to calculate reliability indicators of the all-optical switches as downtime coefficient and availability factor in stationary and transient modes and time of transient mode. The results of numerical calculations show that an increase in the number of duplicating elements by one gives decrease in the downtime coefficient by 6 percent, and the time of the transient process is halved in this case.

All-optical switch based on 1×3 multimode interference couplers

2016 ◽  
Vol 22 ◽  
pp. 129-134 ◽  
Author(s):  
Cao-Dung Truong ◽  
Manh-Cuong Nguyen ◽  
Duy-Tien Le ◽  
Trung-Thanh Le
Keyword(s):  
Optical Switch ◽  
Multimode Interference ◽  
All Optical ◽  
Multimode Interference Couplers ◽  
All Optical Switch

scholarly journals Externally pumped low-loss graphene-based fiber Mach-Zehnder all-optical switches with mW switching powers

2019 ◽  
Vol 27 (4) ◽  
pp. 4216 ◽  
Author(s):  
Ting Hao ◽  
Zeshan Chang ◽  
Kin Seng Chiang
Keyword(s):  
Optical Switches ◽  
Low Loss ◽  
All Optical

THERMO-OPTIC COEFFICIENT OF DIFFERENT PHOTOSENSITIVE ACRYLATE POLYMERS FOR OPTICAL APPLICATION

2005 ◽  
Vol 14 (02) ◽  
pp. 195-201 ◽  
Author(s):  
N. RAZALI ◽  
R. MOHAMED ◽  
A. A. EHSAN ◽  
C. S. KUANG ◽  
S. SHAARI
Keyword(s):  
Refractive Index ◽  
Communication Networks ◽  
Optical Switch ◽  
Optical Devices ◽  
Optical Switches ◽  
Polymer Materials ◽  
Acrylate Polymers ◽  
Acrylate Resin ◽  
Increasing Temperature ◽  
To Receive

Thermo-optic (TO) effect in materials can be exploited in the fabrication of optical devices such as optical switches and couplers. These optical devices play a key function in communication networks because by changing the temperature they have control over the optical path. Recently, polymer materials have begun to receive attention for the application of the TO switch in integrated optics. The polymers exploited for the variation of refractive index with temperature in our work involve the use of cyclomer acrylate, which is compared to the fluorinated acrylate available in the market. We focus the on cyclomer acrylate resin potential to be employed in fabricating optical devices especially the optical waveguide and optical switch. Formerly, this polymer is used as an adhesive and coating only. Different acrylate formulations from cyclomer acrylates have been exploited. Both acrylates show negative TO effects with temperature i.e. decrease of refractive index result in the increase in temperature. This is expected as the refractive index of the polymers are reduced, as density typically decreases with increasing temperature. This is in accordance to the dependence of polarizability and density of a particular material, to its refractive index. For both types of polymers, the change of the refractive index as a function of temperature is linear. The slope can give the dn/dT of the film. The dn/dT of polymers are as high as the order of 10-4, which is comparable to those of optical polymers. Higher values are shown by the cyclomer acrylate compared to the fluorinated type.

Sign in / Sign up

Export Citation Format

Share Document