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Juliet Gopinath

This course can also be taken for academic credit as ECEA 5605, part of CU Boulder’s Master of Science in Electrical Engineering degree.

LEDs and Semiconductor Lasers Course Introduction

You will learn about semiconductor light emitting diodes (LEDs) and lasers, and the important rules for their analysis, planning, design, and implementation. You will also apply your knowledge through challenging homework problem sets to cement your understanding of the material and prepare you to apply in your career.

Course Learning Outcomes

At the end of this course you will be able to…

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This course can also be taken for academic credit as ECEA 5605, part of CU Boulder’s Master of Science in Electrical Engineering degree.

LEDs and Semiconductor Lasers Course Introduction

You will learn about semiconductor light emitting diodes (LEDs) and lasers, and the important rules for their analysis, planning, design, and implementation. You will also apply your knowledge through challenging homework problem sets to cement your understanding of the material and prepare you to apply in your career.

Course Learning Outcomes

At the end of this course you will be able to…

(1) Design a semiconductor light emitting diode and analyze efficiency

(2) Design a semiconductor laser

(3) Choose suitable semiconductor materials for light emitting devices

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What's inside

Syllabus

Semiconductor fundamentals
Light emitting diodes and semiconductor lasers is a really special course, and probably one of my favorite. In it, you will learn the fundamental operating principles, design, fabrication techniques and applications of two of the most widely used light emitting devices in the world today - light emitting diodes and semiconductor lasers. For module 1, I am really looking forward to introducing you to the magical world of semiconductors. In this module, we will review the basics of semiconductor physics and you will learn how we can manipulate the materials to tailor electrical and optical properties.
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Traffic lights

Read about what's good
what should give you pause
and possible dealbreakers
Course opens the door to a career in design and implementation of light emitting devices
Explores semiconductor fundamentals, a critical topic for professionals in the field
Provides a comprehensive examination of light emitting diodes (LEDs), widely used in modern technology
Offers in-depth knowledge of semiconductor lasers, essential for applications in telecommunications and other industries
Taught by instructor Juliet Gopinath, recognized for her expertise in the field
Requires students to have a strong foundation in semiconductor physics

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Reviews summary

In-depth semiconductor light emitting devices

According to students, this course provides a solid foundation and deep dive into the physics, design, and operation of semiconductor light emitting diodes and lasers. Learners consistently praise the clear explanations provided by the instructor, who is seen as highly knowledgeable. While the material is described as technically rigorous and requires a strong prerequisite understanding of semiconductor physics, many find the problem sets challenging but highly valuable for cementing comprehension. Overall, the course is considered exceptionally informative and well-structured for those seeking a comprehensive understanding of these devices.
Homework solidifies understanding but can be difficult.
"The homework problems are challenging but essential for understanding the material deeply."
"Problem sets require applying the learned concepts, which is great practice, though sometimes demanding."
"Working through the problem sets really helped me solidify my understanding of the principles taught in the lectures."
"Some problems were quite difficult and required significant time investment."
Instructor is knowledgeable and explains complex topics clearly.
"The professor explains the concepts clearly and in a way that makes understanding complex topics easier."
"The instructor is very knowledgeable and passionate about the subject matter."
"His explanations are clear and concise, making complex semiconductor physics concepts accessible."
"I found the instructor's lectures highly engaging and easy to follow."
Covers semiconductor physics, LED, and laser design principles in detail.
"This course was extremely informative and the content was explained clearly and logically."
"It was an excellent course that covers in detail the physics and operation of LEDs and semiconductor lasers."
"The course provides a strong technical background in semiconductor LEDs and Lasers, covering fundamental principles to advanced design."
"I learned about the fundamental operating principles, design, fabrication techniques and applications of two of the most widely used light emitting devices in the world today."
Strong background in semiconductor physics is needed.
"A solid background in semiconductor physics is highly recommended before taking this course."
"Learners without prior knowledge of semiconductor fundamentals may find the initial modules difficult to grasp."
"I felt lost sometimes because I lacked a strong background in the physics covered early on."
"Make sure you are comfortable with basic semiconductor physics before enrolling."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Light Emitting Diodes and Semiconductor Lasers with these activities:
Review basic semiconductor physics
Review basic semiconductor physics concepts to strengthen your foundation for understanding light emitting diodes and semiconductor lasers.
Browse courses on Semiconductor Physics
Show steps
  • Revisit your notes or textbook on semiconductor physics from previous courses or resources
  • Focus on concepts like energy bands, charge carriers, and carrier transport
Read 'Semiconductor Lasers and LEDs: Materials and Devices' by J. Piprek
Expand your understanding of semiconductor lasers and LEDs by reading this comprehensive book, which covers materials, device physics, and applications.
Show steps
  • Obtain a copy of the book
  • Read through the chapters relevant to the topics covered in the course
  • Take notes and highlight important concepts
Solve problems on radiative recombination
Practice solving problems on radiative recombination to enhance your understanding of how light is emitted in semiconductors.
Show steps
  • Find practice problems or exercises on radiative recombination
  • Attempt to solve the problems on your own
  • Check your solutions against provided answers or consult with classmates or instructors
Four other activities
Expand to see all activities and additional details
Show all seven activities
Explore tutorials on LED design and fabrication
Seek out tutorials and resources to expand your knowledge on the design and fabrication of light emitting diodes.
Show steps
  • Search for online tutorials or courses on LED design and fabrication
  • Follow the tutorials step-by-step to learn about different design principles and fabrication techniques
  • Experiment with the concepts and techniques you learn to gain practical experience
Develop a presentation on semiconductor laser applications
Create a presentation to showcase the diverse applications of semiconductor lasers, reinforcing your understanding of their impact in various fields.
Show steps
  • Research different applications of semiconductor lasers in fields such as telecommunications, manufacturing, and medicine
  • Gather data and examples to support your presentation
  • Design and develop your presentation, incorporating visual aids and clear explanations
Participate in a study group for advanced laser design principles
Engage in peer discussions on advanced laser design principles to enhance your understanding and problem-solving skills.
Browse courses on Laser Design
Show steps
  • Find or form a study group with classmates who share an interest in advanced laser design principles
  • Establish regular meeting times and set goals for each session
  • Take turns presenting different topics, leading discussions, and solving problems together
Design and simulate a semiconductor laser using a software tool
Utilize software tools to design and simulate a semiconductor laser, applying your knowledge of laser principles and design considerations.
Browse courses on Laser Design
Show steps
  • Choose a software tool for semiconductor laser design and simulation
  • Study the tool's documentation and tutorials to familiarize yourself with its capabilities
  • Design your semiconductor laser, considering factors such as materials, dimensions, and operating parameters

Career center

Learners who complete Light Emitting Diodes and Semiconductor Lasers will develop knowledge and skills that may be useful to these careers:
Semiconductor Laser Engineer
A Semiconductor Laser Engineer designs, develops, and tests semiconductor lasers that are used in a variety of applications, such as telecommunications, optical storage, and laser surgery. This course provides a solid foundation in the physics and engineering of semiconductor lasers, which can help you to succeed in this role. By taking this course, you will learn how to design and simulate semiconductor lasers, as well as how to test and characterize their performance.
Light Emitting Diode (LED) Engineer
A Light Emitting Diode (LED) Engineer designs, develops, and tests LEDs, which are used in a variety of applications, such as lighting, displays, and sensors. This course provides a solid foundation in the physics and engineering of LEDs, which can help you to succeed in this role. By taking this course, you will learn how to design and simulate LEDs, as well as how to test and characterize their performance.
Optoelectronics Engineer
An Optoelectronics Engineer designs, develops, and tests optoelectronic devices, which are devices that use light to perform a variety of functions, such as sensing, emitting, and modulating. This course provides a solid foundation in the physics and engineering of optoelectronic devices, including semiconductor lasers and LEDs. By taking this course, you will learn how to design and simulate optoelectronic devices, as well as how to test and characterize their performance.
Photonics Engineer
A Photonics Engineer designs, develops, and tests photonic devices, which are devices that use light to perform a variety of functions, such as transmitting, switching, and amplifying signals. This course provides a solid foundation in the physics and engineering of photonic devices. By taking this course, you will learn how to design and simulate photonic devices, as well as how to test and characterize their performance.
Optical Engineer
An Optical Engineer designs, develops, and tests optical devices, which are devices that use light to perform a variety of functions, such as imaging, spectroscopy, and optical communications. This course provides a solid foundation in the physics and engineering of optical devices. By taking this course, you will learn how to design and simulate optical devices, as well as how to test and characterize their performance.
Laser Physicist
A Laser Physicist designs, develops, and tests lasers, which are devices that emit a concentrated beam of light. This course provides a solid foundation in the physics and engineering of lasers. By taking this course, you will learn how to design and simulate lasers, as well as how to test and characterize their performance.
Semiconductor Physicist
A Semiconductor Physicist researches the properties of semiconductors and develops new semiconductor materials and devices. This course provides a solid foundation in the physics of semiconductors. By taking this course, you will learn about the basic properties of semiconductors, as well as how to design and fabricate semiconductor devices.
Materials Scientist
A Materials Scientist researches and develops new materials for use in a variety of applications, including optoelectronics, energy storage, and medicine. This course provides a solid foundation in the physics and chemistry of materials. By taking this course, you will learn about the basic properties of materials, as well as how to design and fabricate new materials.
Electrical Engineer
An Electrical Engineer designs, develops, and tests electrical devices and systems. This course provides a solid foundation in the physics and engineering of electrical devices. By taking this course, you will learn how to design and simulate electrical devices, as well as how to test and characterize their performance.
Mechanical Engineer
A Mechanical Engineer designs, develops, and tests mechanical devices and systems. This course provides a solid foundation in the physics and engineering of mechanical devices. By taking this course, you will learn how to design and simulate mechanical devices, as well as how to test and characterize their performance.
Manufacturing Engineer
A Manufacturing Engineer designs, develops, and tests manufacturing processes. This course provides a solid foundation in the principles of manufacturing. By taking this course, you will learn how to design and simulate manufacturing processes, as well as how to test and characterize their performance.
Quality Control Engineer
A Quality Control Engineer develops and implements quality control procedures for manufacturing processes and products. This course provides a solid foundation in the principles of quality control. By taking this course, you will learn how to design and implement quality control procedures, as well as how to test and characterize products.
Project Manager
A Project Manager plans, organizes, and manages projects. This course provides a solid foundation in the principles of project management. By taking this course, you will learn how to plan, organize, and manage projects, as well as how to track and control project progress.
Technical Writer
A Technical Writer writes and edits technical documentation, such as user manuals, white papers, and training materials. This course provides a solid foundation in the principles of technical writing. By taking this course, you will learn how to write and edit clear and concise technical documentation.
Science Teacher
A Science Teacher teaches science to students at the secondary or post-secondary level. This course provides a solid foundation in the principles of science education. By taking this course, you will learn how to develop and implement lesson plans, as well as how to assess student learning.

Reading list

We've selected ten books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Light Emitting Diodes and Semiconductor Lasers.
This advanced textbook covers the latest developments in semiconductor laser technology, making it an excellent resource for those who want to stay up-to-date on this rapidly evolving field.
This textbook provides a comprehensive overview of integrated optics, making it a valuable resource for anyone who wants to learn more about this field.
This textbook covers the fundamentals of diode lasers and photonic integrated circuits, making it a valuable resource for anyone who wants to learn more about these topics.
This textbook provides a comprehensive overview of the principles of photonics, making it a valuable resource for anyone who wants to learn more about this field.
This textbook provides a comprehensive overview of optical fiber communications, making it a valuable resource for anyone who wants to learn more about this field.
This introductory textbook covers the basics of light-emitting diodes, making it an excellent resource for someone who wants to learn more about this topic.
This handbook provides a comprehensive overview of fiber optics, making it a valuable resource for anyone who wants to learn more about this field.
This textbook provides a comprehensive overview of quantum electronics, making it a valuable resource for anyone who wants to learn more about this field.
This textbook provides a good overview of semiconductor optoelectronics, including the theoretical background, materials, and devices. It includes a chapter on light-emitting diodes and lasers and can thus serve as a good supplement to the course.

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