Ph.D. (ECE) produced by Prof. Subhash C. Arya, NEHU, Shillong

 This list is as on December 2022.

Why did I choose to work in the field of Silicon Photonics?

I started research on the topic of Design and Modeling of Erbium-Doped Fiber Amplifier

 for WDM and DWDM Fiber Optic Communication System in 2004 and completed

 in 2009. The research on EDFA requires mostly physics of optical light propagation

( Maxwell Equations applied to cylindrical coordinates for mode solution), doped material

characteristics (rare earth metal like Er 3+ doped fiber’s absorptions, spontaneous

 and stimulated emission rate questions, evolution equations of signal, amplified

 spontaneous emission and absorption of pump signals), numerical methods

 to solve coupled partial differential equations (e.g. 4th order Runga-Kutta Methods),

 optimization techniques (Simple Genetic Algorithm, Multi-Objective Genetic Algorithms),

and the most important use of coding on C++, Matlab and later on Java.

  After completion of my doctoral degree, I was exploring to write a project proposal

and in that, I wrote two project proposals: one as an extension of my Ph.D. work

 and a second one on Behavioral modeling of Optical Devices using

VHDL-AMS. Unfortunately, these two projects could not get sanctioned for

financial support, and meanwhile, I shifted from ISM Dhanbad to NEHU, Shillong

on the acceptance of a higher post from Assistant to Associate Professor in

 the Department of Electronics and Communication Engineering (ECE).

 Thereafter, I thought to write a research proposal on some new emerging areas of

research that should be able to utilize the skills, competency, and strength

of available manpower in the department of ECE as well as not deviating from

my core area of specialization i.e., Optical Communication and compatible

 with the courses that I studied during my six years of engineering graduate

training (3 years diploma in ECE and 3 years in B.Tech.  in ECE).  

How to write an efficient research article and how to crack IITs faculty recruitment

 Please join us for an online meeting to share your experience of writing and publishing good research articles and preparing ourselves for faculty recruitment in the IITs system.

Click here to attend the meeting

Few photos of the meeting

Contemporary teacher has to be a Superhuman to perform his/her duties said by Prof. R. K. Shevgonkar , IIT Bombay on 11 Oct 2021

 While addressing the online inauguration ceremony of ATAL FDPs, Prof. R. K. Shevgonkar has suggested in his address as a chief guest that today's teacher has to work as a superhuman being to perform his/her duties. There are mainly four domains in which a teacher has to perform in the present era. These are:

1:  Personal Development, 2: Instructional domain, 3: Organizational Domain, 4: Professional Development

Prof. Shevgonkar told that in personal development, a teacher has to interact with the teacher on regular basis as a good friend and good mentor so that students can get proper advice, direction, and appropriate guidance without hesitation. 

In the instructional domain,  a teacher should have good digital literacy and efficient digital capabilities. A teacher should be aware of different modes of teaching and learning environments such as online, normal physical classes, flipped classes, asynchronous and self-learning modes. 

A teacher has to design the syllabus and teach courses that are outcome-based learning, student-centric. Training 

In the organizational domain, a teacher should aware of NEP-2020 NAC and help students with their training and placement. 

At the Professional Development level, a teacher has to do quality research, resource mobilization, fund generation so that in the NIRF ranking, the host institute shall get more funding. Faculty has to be a good linkage with industry. 

Join Optics Learning Centre at IIT Delhi online

 Link to access

Happy to share that "

Optics and Photonics Centre of IIT Delhi launches an outreach initiative named "Optics Learning Centre"

I appeal to learners and researchers from Optics and Photonics Community to avail this golden opportunity. 

Optics Learning Centre (OLC) has four different Learning Rooms to enter.

Attended Interaction session on Friday 8 October 2021

LEARN:
This room has a collection of online lecture videos from IITPAL, NPTEL, and other relevant sites, for all interested to learn the basics of optics, right from fundamentals to advanced level.

DISCOVER:
This room will be used to showcase the most recent publications, R&D developments, etc. in Optics and Photonics from IITD and other research groups

INTERACT:
This room will act as a video platform for all interested to come and interact with eminent professors and scientists in Optics and Photonics.
Also, it will have a chat platform where visitors' interesting questions may find an answer from an expert.

SHOWCASE:
This room is a place for startups and other industries to showcase/advertise their Optics and Photonics products and devices.

Access the above page by clicking here.

Every Friday from 5 pm onwards, you can join a chat room to interact with available experts 

Fabricate your Electronics IC free of cost and realize your dreams come true

 There is good news that the company efabless.com gives an opportunity to every electronics engineer to fabricate their integrated circuits free of cost.

Ref: https://www.efabless.com

Project Submission Requirements

The following project requirements must be met in order to qualify for inclusion on the shuttle program:

• The project must be targeted on the currently-supported SkyWater Open PDK for the 130nm process.
• The project must be posted on a git-compatible repo and be publicly accessible.
• The top-level of the project must include a LICENSE file for an approved open-source license agreement. Third-party source code must be identified and source code must contain proper headers. See details here.
• The repo must include project documentation and adhere to Google's inclusive language guidelines. See details here.
• The project must be fully open. The project must contain a GDSII layout, which must be reproducible from source contained in the project.
• Projects must use a common test harness and padframe based on the Caravel repo. New projects should start by duplicating or forking the Caravel User Project repo and implementing their project using the user_project_wrapper. The Caravel repo is configured as a submodule in the project under the ‘caravel’ directory. Note -- you do not need to initialize nor clone the Caravel sub-directory to complete or submit your project. See the project README for further instructions. The projects must be implemented within the user space of the layout and meet all requirements for the Caravel.
• Projects must successfully pass the Open MPW precheck tool, including LVS and DRC clean using the referenced versions of OpenLane flow. Projects should implement and pass a simulation testbench for their design integrated into Caravel. The Caravel User Project provides an example of how to implement this.

Resources

• SkyWater Open PDK: https://github.com/google/skywater-pdk
• OpenLane RTL2GDS Compiler: https://github.com/efabless/openlane
• Caravel Harness: https://github.com/efabless/caravel
• Caravel User Project: https://github.com/efabless/caravel_user_project
• Open MPW Precheck: https://github.com/efabless/open_mpw_precheck

2nd PhD Thesis (MC-EDFA) reading Sessions started from 23 September onwards from 4.30 pm to 5.30 pm

 

2nd Ph.D. Thesis Reading Sessions

Thursday, September 23 from · 4.30 pm to 5.30 pm (Chapter 1: Introduction)

1. Recording of 1st Reading Session on Chapter 1: Introduction can be accessed by clicking here

2. Recording of 2nd Reading Session on Chapter 2: Mathematical Modeling of Multicore Erbium-Doped Fiber Amplifier can be accessed by clicking here.

Reading Sessions on the article entitled , "Neuromorphic Silicon Photonics for AI

 After the successful completion of reading PhD thesis entitled, "Design of Directional Coupler based Silicon Optical Modulator" we have been conducting another reading session on "Neuromorphic Silicon Photonics for AI" authored by Bicky and Bhavin. 

The article can be accessed by clicking here:

Here are links to access reading sessions

Day 1: 21st September 2021 from 7 pm to 8 pm

1. Abstract and Introduction of Neuromorphic SiPh for AI

Link to learn Singular Value Decomposing can be accessed by clicking here.

Day 2: 22nd September 2021 from 7 pm to 8 pm

2. Sections on Background: Neuroscience and Computing, Digital Vs Analog 

Play with light and light phenomenon

 Here are the links to few online resources to play with the light and light related phenomenon

Click here to get material FROM SPIE

SCIENCE OF LIGHT RESOURCES

Labs & Lessons

• Computational Imaging Lab - Fun optics demos and activities from UC Berkeley

• Deceiving Art: A Guide to Stereograms - How they work and instructions to create your own - includes grade specific lesson plans

• Diffraction Glasses: What's in a Color? - Lesson plan for diffraction grating glasses

• Dumpster Optics - Inquiry-based activities illustrating basic optics concepts using inexpensive, commonly found material

• Integrating Sphere Demo - Build a cheap, integrating sphere for color light demonstrations

• Light and Laser Experiments - Free lesson plans, activities, labs, and experiments focused on Light, Lasers, Optics, Waves and Electromagnetic Radiation

• Make Your Own 3D Glasses - Simple Wiki-How instructions for making a pair of 3D glasses

• NASA Educational Materials - Light and Color activities for grades K-12

• TeAchnology - Waves, sound, and optics lesson plans

Online Resources

• A Kid's Guide to Light - A listing of activities and resources for young people interested in learning about light and adults interested in helping them

• Bibliography of Classical Optics - Approximately 1,500 titles, compiled by Douglas Goodman, Polaroid Corp (1980-1993), PDF format 230K

• B-Photonics - Exciting Photonics Stem Projects 

• Exploring Optics - A hands-on curriculum that teaches about light waves and their associated technical applications

• Light Science for Kids - Shine light on scientific facts to see how everything revolves around light

• Optics 4 Kids - A website for students, teachers, and parents devoted to everything optics

• Photon terrace - A fun website from Hamamatsu to learn about light

• Photonics - Technical applications of light - Infographics explaining photonics

• Photonics Project - Resources, Calculations, and More

• Prismatic Magic - Laser programs to bring to your school

• Science, Optics &, You - Free standards-based, interdisciplinary curriculum package for elementary students and teachers to explore light, color, and optics

• Science Made Simple - Beyond the Rainbow, the Invisible World - Traveling shows in the UK bringing inspirational science to your school

• The Exploratorium Science Snacks - Snacks about Light

Videos

• Khan Academy: Concave Lenses - Explanation and examples on YouTube

• Khan Academy: Convex Lenses - Explanation and examples on YouTube

• Khan Academy: Refraction and Snell's Law - Explanation and examples on YouTube

• Khan Academy: Refraction in Water - Explanation and examples on YouTube

• Khan Academy: Snell's Law Examples 1 - Explanation and examples on YouTube

• Khan Academy: Total Internal Reflection - Explanation and examples on YouTube

• #thefuturedependsonoptics - Edmund Optics fun outreach videos on TikTok

• Light Blox Instructional Video - Free videos hosted on YouTube

Click here to access materials FROM NASA

Optics: Light, Color, and Their Uses Educator Guide

1. Product Type:

    

   Educator Guides

    

   Lesson Plans/Activities

2. Audience:

    

   Educators

3. Grade Levels:

    

   K-4

    

   5-8

    

   9-12

4. Publication Year:

    

   2000

5. Product Number:

    

   EG-2000-10-64-MSFC

6. Subjects:

    

   Heat and Light

    

   Light

    

   Optics

    

   Physics

The guide contains color and light activities using lenses, prisms and mirrors to create telescopes, periscopes, microscopes and kaleidoscopes. Other activities include finding focal length and understanding reflection, refraction and diffraction. Activities are marked by grade level.

Optics Educator Guide [6MB PDF file]

Lessons/Activities:
Light, Color, and Their Uses Introduction
Reflection of Light With a Plane (Flat) Mirror - Trace a Star (K-8)
Reflection of Light With Two Plane Mirrors
     - Double Mirrors Placed at a 90-Degree Angle (K-8)
Reflection of Light With Two Plane Mirrors
     - Double Mirrors Placed at a Number of Angles (5-8)
Making a Kaleidoscope (9-12)
Making a Periscope (5-12)
Constructing a Spectroscope (5-8)
Exploring Diffraction With a Spectroscope (K-8)
Diffraction of Light by Very Small Apertures (9-12)
Discovering Color With a Prism (K-8)
Light and Color - Color Spinners (K-8)
Light and Color - Filters (K-4)
Light and Color - Hidden Messages (K-8)
Simple Magnifiers (K-8)
Focusing Light With a Lens (9-12)
Building a Telescope (9-12)
Building a Microscope (9-12)
Interference Fringes (9-12)
Polarization of Light (9-12)

International year of the Light 2015 Resources

Hands On Projects

Exploratorium
Find activities that can be done at home from the Exploratorium, the museum of science, art and human perception in San Francisco.
Visit Site

Hands-On Optics
Through these activities, students gain experience and understanding of optics principles, as well as learning the basics of inquiry, critical thinking, and problem solving skills involving optics.
Visit Site

Optics4Kids Activities
In this website are experiments that will help you understand the physics of light impress your friends with your new ability to manipulate light and color using nothing but a few gumballs and a shoebox.
Visit Site

WEBSITES

Optics4Kids
The Optical Society presents Exploring the Science of Light. Find games and ideas for science fair projects. Learn how optics can focus your future!
Visit Site

Physics and Light
Physics4Kids.com introduces the basics of physics to all ages. There are sections on motion, mechanics, light, heat, thermodynamics, electricity, magnetism, and modern physics.
Visit Site

Educational Videos, Lessons and Games for K-12 School Kids
Light and Optics for Kids - Interesting videos, lessons, quiz games, interactive diagrams, presentations and activities on light and optics.
Visit Site

Optical Illusions
This site is a fascinating collection of graphic demonstrations of optical illusions and visual phenomena, by Michael Bach of Freiburg University. The illusions include discussion of the science behind the visuals.
Visit Site

Stanford Solar Center
The Stanford Solar Center provides teachers, students, and the interested public with the latest information about the Sun. They also provide educational resources such, as a popular, free, build-your-own spectroscopes.
Visit Site

Your Guide to Physics on the Web
This site has is great for browsing articles and interactive features about physics, including light.
Visit Site

Light & Radiation Interactive Simulations
Fun, interactive, research-based simulations of physical phenomena from the PhET™ project at the University of Colorado.
Visit Site

Light Science for Kids
Many topics from a variety of sources, designed for kids.
Visit Site

Teaching Telecommunications
An Interactive K-12 Lesson Plan Collection for Parents and Teachers.
Visit Site

How Light Works: The Science of Light and Optics
Various information on light and optics.
Visit Site

PhD Thesis Reading sessions conducted from 16 September 2021 to 20 September 2021 ( 7 pm to 8 pm via google meet)

 Ph.D. Thesis Reading Sessions

Thursday, September 16 · 7:00 – 8:00pm (Chapter 1: Introduction)

1. Recording of 1st Reading Session on Chapter 1: Introduction can be accessed by clicking here

Friday, September 17. 7.00-8.00pm (Chapter 2: Electro-Optic Modulators)

2. Recording of session 2: Chapter 2 of the thesis entitled, "Design of Directional Coupler based Silicon Optical Modulator" can be accessed by clicking here

Saturday, September 18. 7.00- 8.00 pm (Chapter 3: Architectural Design of Silicon-Based Optical Modulators)

3. Recording of session 3: Chapter 3: Architectural Design of Silicon-Based Optical Modulators of the thesis entitled, "Design of Directional Coupler based Silicon Optical Modulator" can be accessed by clicking here.

Sunday, September 19. 7.00- 8.00 pm (Chapter 4: Comparative Analysis of VO2 and ITO based Electro-Absorption Modulators)

4. Recording of session 4: Chapter 4: Comparative Analysis of VO2 and ITO based Electro-Absorption Modulators of the thesis entitled, " Design of Directional Coupler based Silicon Optical Modulator" can be accessed by clicking here. 

Monday, September 20. 7.00- 8.00 pm (Chapter 5: A V-shaped ITO-based Electro-Absorption Modulators, Chapter 6: Conclusion and Future Work)

5.  Recording of Session 5 the last one: Chapter 5 and 6: A V-shaped ITO-based Electro-Absorption Modulator, and Conclusions and Future Work can be accessed by clicking here. 

Fig. 1. Snap-shot of Reading Session 4 on Sunday,19th  September 2021

Fig. 2. Snap-shot of Reading Session 5 and last on Monday, 20th September 2021

Average Impact Factor of journal article publication is 2.887 for last five years

 Average Impact Factor of the publications of Subhash C. Arya and his research team at LWCS Lab, ECE Department, NEHU, Shillong

 

SCI-indexed Journals:

 1. Optik (IF=  2.443, 4 publications, total impact factor= 9.772 ),

 2. Optics Communications (IF=2.310 , 1 publication, total impact factor=2.310 )

3. IET Communications (IF=  1.664 , 1 publications, total impact factor= 1.664 )

4. Optical Fiber Technology (IF= 2.530 , 1 publications, total impact factor= 2.530 )

5.  Photonic Network Communication( IF=2.028, 1 publications, total impact factor= 2.028)

6. Journal of Modern Optics( IF=1.465. 1 publication, total impact factor=1.464 )

7. Optoelectronics and Optoelectronics and Advanced Materials-Rapid Communications (IF=0.441. 1 publication, total impact factor= 0.441 )

 

Average Impact Factor= 20.209/7=2.887

The average Impact Factor of Journal publication for the last 5 years is 2.887

Total Citation= 82 (as on 02.09.2021)

 H-index= 5, 

 i-10 Index= 3

List of SCI index journal publications of Subhash C. Arya from the year 2017-2021

1.     Kakati, Dhiman; Arya, Subhash C;           A full-duplex optical fiber/wireless coherent communication system with digital signal processing at the receiver,Optik 171         190-199,          2018

2.     Kakati, Dhiman; Arya, S. C.;         Performance of 120 Gbps Single Channel Coherent DP-16-QAM in Terrestrial FSO Link under Different Weather Conditions,     Optik,                                 2018

3.     Kakati, Dhiman; Arya, Subhash C;           Performance of grey-coded IQM-based optical modulation formats on high-speed long-haul the optical communication link,            IET Communications,  13,       18,       2904-2912,      2019

4.     Das, Himanshu R.; Arya, Subhash C.;      Modified sidewall angled silicon waveguide for enhanced performance of ITO-assisted electro-absorption modulator at 1550 nm wavelength,Optik,202,7,2019

5.     Kaur, Balbindar; Arya, Subhash C;           A parametric study to create an optimal design of seven-cores hexagonal structured erbium-doped fiber amplifier,         Optical Fiber Technology,          54,       102081,           2020

6.     Kakati, Dhiman; Arya, Subhash C;           A 640-Gbps, 15.2344-b/s/Hz full-duplex optical fiber/wireless single-channel coherent communication system using IQM-based DP-256-QAM and DSP techniques,           Photonic Network Communication,     2019

7.     Das, Himanshu R.; Arya, Subhash C.;      Performance improvement of VO2 and ITO based plasmonic electro-absorption modulators at 1550 nm application wavelength,      Optics Communications,         479,                             2021

8.     Das, Himanshu R; Arya, Subhash C;        Investigation of a V-shaped ITO-plasmonic material based electro-absorption modulator for PIC and high-speed optical communication systems,   Journal of Modern Optics,11,  2021

9.     Kaur, Balbindar; Arya, Subhash C;           Effect of Pitch on Gain-Noise Figure and Crosstalk Performance of Different Core Structure Multicore Erbium-Doped Fiber Amplifier: A Comparative analysis,           Optik,   242,     167071,                       2021

10.  Kaur, Balbindar; Arya, Subhash C;           Effect of pitch on gain-noise figure and crosstalk  performance of T-structured multicore erbium-doped  fibre amplifier, Optoelectronics and Optoelectronics and Advanced Materials-Rapid Communications, 15,    05-Jun 232-239,2021

List of Conference publications of Subhash C. Arya for last five years

1.      Kakati, Dhiman; Arya, Subhash C;   Full-duplex 20 Gbit/s fiber-optic link design based on dual-polarization differential quaternary phase-shift keying,          Advances in Optical Science and Engineering,575-581,          2017

2.      Boro, Gokul; Arya, Subhash C;        Spectrally Efficient SSB Optical OFDM Signal Using Balanced Detection,            Advances in Optical Science and Engineering,   543-550,      2017

3.      Das, Himanshu R; Daimary, Isac; Arya, Subhash C;            Coupling Characteristic of Silicon-Based Optical Directional Coupler   , Proceedings of the International Conference on Computing and Communication Systems,         499-504,           2018

4.      Kakati, Dhiman; Arya, Subhash C;   Design of Dense Wavelength Division Multiplexing System Using DQPSK Modulation Format,   Proceedings of the International Conference on Computing and Communication Systems,         217-223,           2018

5.      Medhi, Silpeeka; Arya, Subhash C; Kaur, Balbindar;             C-Band Silicon Optical Modulator for High-Speed Optical Communication System,      Proceedings of the International Conference on Computing and Communication Systems,     515-521,           2018

6.      Das, Himanshu R; Arya, Subhash C;           Design of ITO based hybrid silicon optical modulator,  2018 3rd International Conference on Microwave and Photonics (ICMAP)           02-Jan 2018

7.      Kaur, Balbindar; Arya, Subhash C;   Modelling of multicore erbium doped fiber amplifier,      2018 3rd International Conference on Microwave and Photonics (ICMAP)           ,02-Jan      2018

8.      Kakati, Dhiman; Arya, Subhash C;   A full-duplex pilot-assisted DP-16-QAM CO-OFDM system for high-speed long-haul communication,     2019 2nd International Conference on Innovations in Electronics, Signal Processing and Communication (IESC), 183-187,           2019

9.      Kaur, Balbindar; Arya, Subhash C;   A Comparative Study of Multicore Erbium Doped Fiber Amplifier: Mode Analysis,    2019 2nd International Conference on Innovations in Electronics, Signal Processing and Communication (IESC),        124-127,           2019

10.   Sariang, Lanosha; Arya, Subhash C;           Mathematical Modeling of Carrier Injection based PIN junction Optical Phase Shifter using Evolutionary Algorithm,      2019 2nd International Conference on Innovations in Electronics, Signal Processing and Communication (IESC)     04-Jan 2019

11.   Malngiang, Ridahun; Arya, Subhash C;        Mathematical Modeling of Carrier Depletion based PN junction Optical Phase Shifter using Evolutionary Algorithm,       2019 2nd International Conference on Innovations in Electronics, Signal Processing and Communication (IESC)      305-310,           2019

12.   Kaur, Balbindar; Arya, Subhash C;   Y-Arrangement Seven-Core Erbium-Doped Fiber Amplifier,      Lecture Notes in Networks and Systems, Springer, Singapore    539-546,           2021