525.691.81 - Fundamentals of Photonics

Course Structure

The course materials are divided into modules which can be accessed by clicking Course Modules on the left menu. A module will have several sections including the overview, content, readings, discussions, and assignments. You are encouraged to preview all sections of the module before starting. Most modules run for a period of seven (7) days, exceptions are noted in the Course Outline. You should regularly check the Calendar and Announcements for assignment due dates.

Course Topics

Course topics include:

1. Wave optics and beam optics
2. Electromagnetic optics
3. Dispersion and attenuation
4. Polarization
5. Planar waveguides
6. Fiber optics I – basic properties
7. Fiber optics II – single mode fibers
8. Photon optics
9. Photons and atoms
10. Photons in semiconductors
11. Photon light sources– light emitting diode and laser diodes
12. Photon detectors
13. Acousto-optic and electro-optic modulators

Course Goals

To introduce students to the fundamental concepts in the generation, modulation, transmission and detection of light using modern photonic devices. These principles provide the foundation necessary to understand modern photonic and fiber optic systems.

Course Learning Outcomes (CLOs)

• Apply fundamental principles learned in this course to solve problems in the propagation of light in dielectric media and optical waveguides.
• Apply fundamental principles learned in this course to solve problems in the generation and detection of light in semiconductor devices.
• Apply fundamental principles learned in this course to solve problems in the modulation of light in electro-optic and acousto-optic modulators.
• Evaluate how to optimize the performance of modern single-mode optical fibers for Fiber- Optic Communication links.

Textbooks

Required

Saleh, B. E. A. and Teich, M. C. Fundamentals of Photonics (2nd ed.). Wiley-Interscience ISBN: 978-0-471-35832-9

Textbook information for this course is available online through the appropriate bookstore website: For online courses, search the MBS website.

Student Coursework Requirements

It is expected that each module will take approximately 10–13 hours per week to complete. Here is an approximate breakdown: reading the assigned sections of the texts (approximately 3–4 hours per week) as well as some outside reading, listening to the audio annotated slide presentations (approximately 2–3 hours per week), and homework assignments (approximately 5–6 hours per week).

This course will consist of the following basic student requirements:

Preparation and Participation (10% of Final Grade Calculation)

You are responsible for carefully reading all assigned material and being prepared for discussion. The majority of readings are fromthe course text. Additional reading may be assigned to supplement text readings.

Post your initial response to the discussion questions by the evening of day 3 for that module week. Posting a response to the discussion question is part one of your grade for module discussions (i.e., Timeliness).

Part two of your grade for module discussion is your interaction (i.e., responding to classmate postings with thoughtful responses) with at least two classmates (i.e., Critical Thinking). Just posting your response to a discussion question is not sufficient; we want you to interact with your classmates. Be detailed in your postings and in your responses to your classmates' postings. Feel free toagree or disagree with your classmates. Please ensure that your postings are civil and constructive.

I will monitor module discussions and will respond to some of the discussions as discussions are posted. In some instances, I/we will summarize the overall discussions and post the summary for the module.

Evaluation of preparation and participation is based on contribution to discussions. Preparation andparticipation is evaluated by the following grading elements:

1. Timeliness (50%)
2. Critical Thinking (50%)

Preparation and participation is graded as follows:

100–90 = A—Timeliness [regularly participates; all required postings; early in discussion; throughout the discussion];Critical Thinking [rich in content; full of thoughts, insight, and analysis].

89–80 = B—Timeliness [frequently participates; all required postings; some not in time for others to read and respond];Critical Thinking [substantial information; thought, insight, and analysis has taken place].

79–70 = C—Timeliness [infrequently participates; all required postings; most at the last minute without allowing for response time]; Critical Thinking [generally competent; information is thin and commonplace].

<70 = F—Timeliness [rarely participates; some, or all required postings missing]; Critical Thinking [rudimentary and superficial; no analysis or insight is displayed].

Assignments (30% of Final Grade Calculation)

Assignments consist of problem sets, mostly from the course text. The problems for each assignment should be submitted in numerical order with the solution clearly indicated for each problem. Please include a cover sheet with your name and assignmentidentifier. Also include your name and a page indicator (i.e., page x of y) on each page of you submissions. If a mathematical software package such as MATLAB or Mathematica is used to perform some of the calculations, explicitly write out an example of a calculation, clearly showing each step and intermediate result. Do not just hand in a print out of the software code and results without any clear explanation of how the calculation was performed.

All assignments are due according to the dates in the Calendar.

Late submissions will be reduced by one letter grade for each week late (no exceptions without prior coordination with the instructors).

Assignments are evaluated by the following grading elements:

1. Each part of each question is attempted to be answered (50%).
2. Derivations contain all required steps with no gaps; computational problems show all significant intermediate steps and reach the correct answer (40%).
3. Notation is consistent and unambiguous; derivations are written clearly (10%).

Quantitative assignments are graded as follows:

100–90 = A—All parts of question are addressed; All assumptions are clearly stated; All intermediate derivations and calculations are provided; Answer is technically correct and is clearly indicated; Answer precision and units are appropriate.

89–80 = B—All parts of question are addressed; All assumptions are clearly stated; Some intermediate derivations and calculations are provided; Answer is technically correct and is indicated; Answer precision and units are appropriate.

79–70=C—Most parts of question are addressed; Assumptions are partially stated; Few intermediate derivations and calculations are provided; Answer is not technically correct but is indicated; Answer precision and units are indicated but inappropriate.

<70=F—Some parts of the question are addressed; Assumptions are not stated; Intermediate derivations and calculations are not provided; The answer is incorrect or missing; The answer precision and units are inappropriate or missing.

Exams (60% of Final Grade Calculation, combined from 30% for Midterm and 30% for Final)

The midterm exam will be available in Module 7 and the final exam will be available Module 14. You will have one week to complete the exams and they will be due by 5PM exactly one week from their release. You may use the course text and supplementary material from the reading assignments to complete the exams.

The exams are evaluated by the following grading elements:

1. Each part of each question is answered (30%).
2. Derivations contain all required steps with no gaps; computational problems show all significant intermediate steps and reach the correct answer (60%).
3. Notation is consistent and unambiguous; derivations are written clearly (10%).

Exams are graded as follows:

100–90 = A—All parts of question are addressed; all significant intermediate derivations and calculations are provided; answer is correct; logic is sound; notation is clear and consistent.

89–80 = B—All parts of the question are addressed; most significant intermediate derivations and calculations are provided; most answers are correct; logic is sound with possibly one or two gaps; notation is clear and consistent.

79–70 = C—Most parts of question are addressed; some significant intermediate derivations and calculations are provided; several answers are correct; logic is sound with several gaps; notation is clear and consistent.

<70 = F—Some parts of the question are addressed; few significant intermediate derivations and calculations are provided; many answers are incorrect; logic is inconsistent; notation is unclear and/or inconsistent.

Grading Policy

Assignments are due according to the dates posted in your Canvas course site. You may check these due dates in the Course Calendar or the Assignments in the corresponding modules. I will post grades one week after assignment due dates.

We generally do not directly grade spelling and grammar. However, egregious violations of the rules of the English language will be noted without comment. Consistently poor performance in either spelling or grammar is taken as an indication of poor written communication ability that may detract from your grade.

A grade of A indicates achievement of consistent excellence and distinction throughout the course—that is, conspicuous excellence in all aspects of assignments and discussion in every week.

A grade of B indicates work that meets all course requirements on a level appropriate for graduate academic work. These criteriaapply to both undergraduates and graduate students taking the course.

EP uses a +/- grading system (see “Grading System”, Graduate Programs catalog, p. 10).

Final grades will be determined by the following weighting:

Academic Policies

Deadlines for Adding, Dropping and Withdrawing from Courses

Students may add a course up to one week after the start of the term for that particular course. Students may drop courses according to the drop deadlines outlined in the EP academic calendar (https://ep.jhu.edu/student-services/academic-calendar/). Between the 6th week of the class and prior to the final withdrawal deadline, a student may withdraw from a course with a W on their academic record. A record of the course will remain on the academic record with a W appearing in the grade column to indicate that the student registered and withdrew from the course.

Academic Misconduct Policy

All students are required to read, know, and comply with the Johns Hopkins University Krieger School of Arts and Sciences (KSAS) / Whiting School of Engineering (WSE) Procedures for Handling Allegations of Misconduct by Full-Time and Part-Time Graduate Students.

This policy prohibits academic misconduct, including but not limited to the following: cheating or facilitating cheating; plagiarism; reuse of assignments; unauthorized collaboration; alteration of graded assignments; and unfair competition. Course materials (old assignments, texts, or examinations, etc.) should not be shared unless authorized by the course instructor. Any questions related to this policy should be directed to EP’s academic integrity officer at ep-academic-integrity@jhu.edu.

Students with Disabilities - Accommodations and Accessibility

Johns Hopkins University values diversity and inclusion. We are committed to providing welcoming, equitable, and accessible educational experiences for all students. Students with disabilities (including those with psychological conditions, medical conditions and temporary disabilities) can request accommodations for this course by providing an Accommodation Letter issued by Student Disability Services (SDS). Please request accommodations for this course as early as possible to provide time for effective communication and arrangements.

For further information or to start the process of requesting accommodations, please contact Student Disability Services at Engineering for Professionals, ep-disability-svcs@jhu.edu.

Student Conduct Code

The fundamental purpose of the JHU regulation of student conduct is to promote and to protect the health, safety, welfare, property, and rights of all members of the University community as well as to promote the orderly operation of the University and to safeguard its property and facilities. As members of the University community, students accept certain responsibilities which support the educational mission and create an environment in which all students are afforded the same opportunity to succeed academically. 

For a full description of the code please visit the following website: https://studentaffairs.jhu.edu/policies-guidelines/student-code/

Classroom Climate

JHU is committed to creating a classroom environment that values the diversity of experiences and perspectives that all students bring. Everyone has the right to be treated with dignity and respect. Fostering an inclusive climate is important. Research and experience show that students who interact with peers who are different from themselves learn new things and experience tangible educational outcomes. At no time in this learning process should someone be singled out or treated unequally on the basis of any seen or unseen part of their identity. 
 
If you have concerns in this course about harassment, discrimination, or any unequal treatment, or if you seek accommodations or resources, please reach out to the course instructor directly. Reporting will never impact your course grade. You may also share concerns with your program chair, the Assistant Dean for Diversity and Inclusion, or the Office of Institutional Equity. In handling reports, people will protect your privacy as much as possible, but faculty and staff are required to officially report information for some cases (e.g. sexual harassment).

Course Auditing

When a student enrolls in an EP course with “audit” status, the student must reach an understanding with the instructor as to what is required to earn the “audit.” If the student does not meet those expectations, the instructor must notify the EP Registration Team [EP-Registration@exchange.johnshopkins.edu] in order for the student to be retroactively dropped or withdrawn from the course (depending on when the "audit" was requested and in accordance with EP registration deadlines). All lecture content will remain accessible to auditing students, but access to all other course material is left to the discretion of the instructor.