McMaster University

Department of Electrical & Computer Engineering

Elect. Eng. 4EM4 Photonic Devices and Systems Engineering

 

Instructor:  Dr.  Shiva Kumar

ITBA 322, x26008, kumars@mail.ece.mcmaster.ca

 

Office hours:   Tuesdays and Thursdays 10:30 – 12:00.

TAs:

 

For routine tasks such as lab switching/lab missing, please contact the TA first. If the issue is not resolved, only then contact the instructor.

 

1. Elham Bidaki

 

If you have questions regarding tutorial related questions, please contact

Ms. Bidaki,  bidakie@mcmaster.ca

 

 

2. Donghan Li

 

If you have questions regarding the lab (for example, lab switching, missed Lab), contact this TA:

 

Email :  lid91@mcmaster.ca

 

Office hours: Mondays 1:30 pm – 2:30 pm

 

3. Sayed Ahmad

 

Office hours: Wednesdays 1:30 pm – 2:30 pm

 

Lab. Location: ITB 234.

 

Course Outline

 

 

Term Offered:

 

Academic Year 2019-2020, Term II

Announcements

 

Your final exam marks are here

 

Your midterm, labs, quiz1 and quiz2 marks are here

 

You can find the final exam under the table of contents as a module "Final Exam" in Avenue. It is still empty and you can access it only at 7:25 pm today. (Apr. 22).

 

You should be able to see a module “Final Exam” in Avenue and also “Final exam submission” under Assessment -> Assignment.

If you don’t see these modules on Avenue, please contact the instructor. The final exam pdf will appear on the module “Final Exam” at 7:25 pm on Apr. 22. It may be a good idea to download it if you expect issues with the internet. Please answer those questions on paper and upload the scanned version to the assignment dropbox “Final Exam Submission” by 10:30 pm. It is better to keep 30 minutes for file uploading.  The instructor will be on Microsoft Teams during the exam hours and you could post your questions on Teams. If there are any issues/errors with questions, you will be notified on Teams post/announcements will be made. So, please join Teams during the exam hours. If you experience difficulty accessing the exam due to internet issues, please email/text the instructor. The contact info is provided on Avenue.

 

You are allowed to refer to lecture notes/textbook, but should not collaborate with other students. If we find two exams to be similar, it will be considered academic dishonesty and your final exam grade will be set to zero. The case will be transferred to the University ethics committee.

 

 

 

Final Exam will be held on Apr. 22 from 7:30 pm – 10:30 pm (the same time as set by the registrar’s office). The exam will be conducted on Avenue. The exam is two and half hours long and you get an extra 30 minutes to upload your exam to Avenue. You may write on paper and then scan your exam and upload. There will be 5 questions. The questions could be either explain type or problem solving type. You are allowed to refer to textbook/lecture notes, but not allowed to collaborate. I suggest you to keep a formula sheet handy.

 

Exam review lecture will be held on Tuesday, Apr. 7 from 5:30 pm – 7:00 pm. It will be a live stream. Exam format will be discussed. Please attend this lecture on Microsoft teams. Sometimes recording does not show the screen.

 

 

 

 

As discussed yesterday, the live streaming is canceled and the instructor will record the lecture on Teams and post the link on the course website.  The video is also available on Teams.

 

The recorded videos and OneNote pdfs of the lectures on Mar. 19 or after are found under Lecture Notes -> Laser -> videos.

 

If you had an issue with the faulty equipment (for lab2) and your mark is impacted, please contact the TA Sayed Ahmed, ahmes93@mcmaster.ca

 

The final exam for EE4EM4 will be on Avenue. There will be 20 or 30 multiple-choice type questions. More details to follow. Please login to Avenue in future for updates.

 

The online course hours:

 

Tuesdays, Thursdays and Fridays: 5:30 pm – 6:20 pm

 

The first lecture will start from Thursday, Mar. 19 at 5:30 pm. Please join the class on Teams by tomorrow.

 

Join the Teams using mcmaster email id. After logging in, enter the code:

 

1zvg6p2

 

The instructions for joining the Teams is here

 

 

The TAs will be available on Teams during their posted office hours. If you have a question for a specific TA, please join the meeting at that time or you can post on Teams. 

 

Quiz3 is canceled. The quiz weight is determined by the best quiz. For example, if you have got 8 for quiz1 and 9 for quiz2, your quiz mark is 9.

 

The course is now moved to Microsoft Teams:

 

 https://products.office.com/en-ca/microsoft-teams/group-chat-software

 

Join the Teams using mcmaster email id. After logging in, enter the code:

 

1zvg6p2

 

The instructions for joining the Teams is here

 

Changes to course instruction

 

Lab4 is cancelled from Mar. 16. Those who did not get a chance to finish Lab4 - your lab weight is based on the average of Lab1, Lab2 and Lab3. 

For some of you, you took a longer time to complete Lab2 and as a result, you did not finish either Lab2 or Lab3. Given the situation, we will take the average of the labs you have done and that will be your lab weight. For example, if you have got 5 in Lab1 and 4 in Lab2, your lab weight is 4.5. You should have finished at least two labs (i.e. (lab1 and lab2) or (lab1 and lab3)). 

 

 

Quiz 2 will be held during the tutorial on Thursday, Mar. 12.

 Topic: Optical Fibers, focus is on dispersion in single mode fibers, Fourier transforms and dispersion compensation. Please go to the subsection Quizzes below.

 

Lab4 will start from Mar. 9 and run for two weeks. You will be doing Unit 4.  Please follow your Mosaic schedule.

 

Please go to the midterm section to see the details on the format and topics.

 

There will be a midterm review lecture on Tuesday, Feb. 25. The format of the midterm will be discussed.

 

Some of you faced problems in the lab due to malfunctioning of the equipment. The TA has added some extra marks since it is not your fault.

 

Lab3 will start from Feb. 24 and run for two weeks. You will be doing Unit 3.  Please follow your Mosaic schedule.

 

Quiz 1 will be held during the tutorial on Thursday, Feb. 6.

Please go to the subsection Quizzes below. A formula sheet will be provided at the end of questions. It would be similar to that provided at the end of midterm (Please check the section Midterm Exam)

 

 

Lab2 will start from Monday, Feb. 3 and will run for two weeks. You will be doing Unit 2 (Fibers). Please follow your Mosaic schedule.

 

Lab1 will start from Monday, Jan. 20 and will run for two weeks.

 

Tutorials will start from Thursday, Jan 23.

 

Assignments

 

1.    Using Fermat’s principle, prove Snell’s Law (law of refraction).

Read the section on reflection and refraction in the book chapter EM theory (section 1.9.1).

 

 

Labs

 

 While doing the lab, do not provide answers by trial and error. For every wrong answer you provide, your lab marks will be deducted by Labvolt.  So, think before you ink. Even if you get 100% in the post-lab quiz, it does not ensure that you got full lab marks. The exact weight of the post-lab quiz and that of lab performance is already fixed by Labvolt, which cannot be changed.

 

 The Lab1 is about familiarization with the kit. Please go through the following material before doing the lab:

 

http://power.mcmaster.ca/spencer/facet/Fiber_Optic_Student_Workbook.pdf

 

 If you miss the lab, you may not get a second chance to do it.

 

If you need to switch your lab, please contact the TA Mr. Donghan Li (lid91@mcmaster.ca). The TA will try to accommodate your request if there is a vacancy, but no guarantee.

 

 

Quizzes

 

There are two quizzes. The better quiz will be selected. The date of a quiz will be announced at least one week prior to the quiz.  MSAF is not allowed if you are missing a quiz. The purpose of choosing a better quiz is to accommodate for sickness, snow day, etc. However, if you miss two quizzes, you could use MSAF for one of them and the weight of the quiz is added to the final.

 

Quiz 2

Quiz2 will be on Thursday, Mar. 12 during the tutorial. The duration of quiz is approximately 30 minutes. The TA will spend the first 15 minutes solving a problem as usual and then, it is followed by the quiz.

 

Quiz 2 topic: Optical fibers. focus is on dispersion in single mode fibers, Fourier transforms and dispersion compensation.

 

Quiz 2 format:  You need to solve a problem or two similar to what is covered during tutorials.

 

Study Material:  Lecture notes, text book sections, worked examples in the text book and tutorials

 

Rules: Use a pen. If you write using pencil, no remarking. Please bring a paper and a calculator to do the quiz.

 

 

Quiz 1

Quiz1 will be on Thursday, Feb. 6 during the tutorial. The duration of quiz is approximately 30 minutes. The TA will spend the first 15 minutes solving a problem as usual and then, it is followed by the quiz.

 

Quiz1 topic: Electromagnetics and Optical fibers covered until Feb. 1.

Quiz1 format:  You need to solve a problem similar to what is covered during tutorials.

Rules: Use pen. If you write using pencil, no remarking. Please bring a paper and calculator to do the quiz.

 

 

 

Midterm Exam

Date: Friday Feb 28

Time: 7:00 pm – 8:30 pm

Location: T13 127

Topics: Maxwell’s equations, Plane waves, Reflection and Refraction (Fermat’s principle) and optical fibers excluding dispersion in SMF (i.e. Fourier transforms).

Format: There will be 4 questions. They could be of the following types:

(i)                      Expain or discuss … -> qualitative explanation. Draw figures to explain. Math optional.

(ii)                    Derive or Prove that -à Math is required.

(iii)                  Engineering examples -> similar to discussed in tutorials.

 

No remarking if you use pencil.

Answer sheets will be provided.

 

Formula sheet is similar to that in the following midterm (Midterm-2015)

  Midterm -2015

   Midterm- 2015 solutions

 

Final Exam

 

The final exam sample

 

               final_exam_2008

 

 The formula sheet at the end of the sample exam is nearly the same as that you would have for the final exam.

 

Lecture Notes

 

Introduction_slide

 

 

Electromagnetics

 

Text book Sections: 1.1-1.6, 1.8-1.9.

 

Exercises (at the end of the chapter) : 1.5, 1.7 and 1.9. Please find the first chapter of the text book below:

 

Book_chapter_em_theory

 

To have a demo on EM wave generated by an antenna, run fdtd_maxwell_2D.m (include DDf.m in the same folder)

Fdtd_maxwell_2D.m

DDf.m

 

Examples for forward and backward wave propagation (matlab codes shown in the class)

 

Example 1

Example2

Example3_standing_steady

Example3_standing_transient

 

 

Optical Fiber Transmission

 

1 2 3 4 5

 

OneNote   1

 

 Text book Sections covered are 2.1-2.3, 2.4 (qualitatively), 2.5-2.6, 2.7.1,2.7.2 and 2.8.

 

Practice problems: Problems 2.1-2.8, 2.10-2.16

 

Exercises (at the end of the chapter): 2-10, 2-11-13

 

Lasers

 

Text book Sections 3.1-3.5, 3.7, 3.7.1, 3.7.2, 3.8, 3.8.1, 3.8.3,3.8.4  are covered.

Practice problems: Problems 3.2-3.5, 3.7-3.8, 3.11

Exercises: 3.1-3.2, 3.4-3.11, 3.13-3.15.

 

 

Videos and OneNote Pdfs:

 

Mar. 19 2020:  https://web.microsoftstream.com/video/9e30f6f1-fb0b-483e-9f48-d2407c0bf13f

Mar. 19 2020 : OneNote_laser1

 

Mar. 20 2020:  https://web.microsoftstream.com/video/80082804-b8d1-4202-9bfe-7a6645561604

 

Mar 20 2020: OneNote_laser2

 

Mar. 24 2020: Part I : https://web.microsoftstream.com/video/611c0e85-2adb-4a23-ab66-9e53d3a1b756

                        Part II: https://web.microsoftstream.com/video/f217f0f8-2cd4-498d-8ce7-e049e328a280

Mar. 24 2020: OneNote_laser3

 

Mar. 26 2020: Lasers Part I: https://web.microsoftstream.com/video/1c1c9de1-6bf7-43fb-93b5-a809c4983359

                        Lasers Part II: https://web.microsoftstream.com/video/8f128f9f-1634-4116-b518-ec0ee7f60c3a

                        Photodetectors : https://web.microsoftstream.com/video/e3a166a7-7a15-463f-8685-839dbdefd65a

Mar. 26 2020: Lasers:   OneNote_laser4

                        Photodetectors: OneNote_rec1*

                        *This includes the lecture done on Mar. 27 as well.

Mar. 27 2020: Photodetectors: https://web.microsoftstream.com/video/ec19dc3f-ac25-4f43-85b2-4b8abf52feca

                        Systems: https://web.microsoftstream.com/video/8602e34b-c959-4b32-bb66-8b347e65fa40

Mar. 27 2020: OneNote_sys1

 

Mar. 31 2020: Systems: Part1: https://web.microsoftstream.com/video/964a83be-d637-434b-9cb3-7ec6fe19ed91 *

                                        *Recording stopped after 15 minutes. In Part II, the recording continued from where it stopped.

                                       Part II: https://web.microsoftstream.com/video/9e9ea92c-dc28-4dad-93f8-7098680ff7ce

                                       Part III: https://web.microsoftstream.com/video/2462d674-b26c-4d68-a563-fcfa187bc20a

Mar. 31 2020: OneNote_sys2

 

Apr. 2 2020: Systems:

Part I: https://web.microsoftstream.com/video/f70c313b-b4b4-4890-b770-4f0c0ee9808f

Part II : https://web.microsoftstream.com/video/dd07061f-94ea-4d6a-9cc7-2d71c931c6bd

 

Apr. 2 2020: OneNote_sys3

 

Apr. 3 2020: Systems

Part I: https://web.microsoftstream.com/video/5234f0dd-ca04-4ab6-a620-5563687f0086

Part II: https://web.microsoftstream.com/video/c65dc930-f461-48b4-a309-d3de3339fa1f

Apr.3 2020: OneNote_sys4

 

Apr. 7 2020: Review Lecture

 

Part I: https://web.microsoftstream.com/video/e7c89a3c-43b3-4dea-acd5-b8c7b3ddfb93

Part II: https://web.microsoftstream.com/video/947eb8db-deb9-4e9f-9a40-a1d8bafb2a4d

 

Problems covered during the review lecture - here

 

Written Notes:

1

2* 3 4* 5 6 7

 

2*This is not covered in 2020.

 

4* Direct and indirect bandgap, radiative and nonradiative recombination – not covered in 2020.

 

Older OneNote 1 2 3 4

 

Optical Receivers

 

1 2 3 4*

 

4* : Shot noise and thermal noise are not covered in 2020. PIN photodiodes and PD bandwidth – not covered in 2020. Optical Receiver block diagram  - not covered in 2020.

 

Text book sections: 5.2, 5.2.1, 5.2.2 and 5.2.5

 

Note: The book has much more information than that covered in this course. For the final exam, it is sufficient if you read lecture notes posted above.

 

OneNote 1*

 

This includes some part of systems as well.

 

Systems

 

1 2 3*

 

Channel Noise

 

3* variance/SNR due to shot noise and thermal noise not covered in 2020.

 

Text book sections 7.4, 7.4.2, and 7.4.5

Note: The book chapter has much more information than that covered in this course. For the final exam, it is sufficient if you read lecture notes posted above.

 

 

Practice Problems

 

Electromagnetics and Optical Fiber Transmission:

1 2

Solutions

 

Exercise 2 of the book chapter Fibers.  Solution

 

 

Lasers

 

Tutorials and quizzes

 

Tutorial1

 

Tutorial2

 

Tutorial3

 

Tutorial4

 

Quiz1 and solution

 

Tutorial5_fibers

 

Tutorial6_fibers*

*Problem 1 topic “cutoff wavelength” is not covered in 2020. The TA solved only Prob. 2.

 

Tutorial7_fibers*

The TA did not solve these problems. Please study them yourself.

 

Tutorial8_lasers: video link

 

https://web.microsoftstream.com/video/b1b6bd3e-929c-4738-a78f-aab48dbd70ff

 

Tutorial9_lasers: video link

 

https://web.microsoftstream.com/video/aa7eebda-c0db-481c-a111-e21d922f1d7b

 

 

 

 

 

 

Matlab Codes

 

 

 

Single-mode fiber – pulse propagation

Fiber_prop

Fiber_dispersion_demo

 

Laser diode simulation

 

Laser_diode    

 

Rate_equation

 

Simulation of fiber-optic transmission system

Fiber_prop_system

Amp

Eye diagram

Compute Q