This lecture focuses mainly on the details of the light emitting devices including light emitting diode and laser diode which are important for photonic application systems.
The aim of this lecture is to learn the principles and characteristics of the semiconductor light-emitting-devices and related photonic active devices, such as photo detector and light modulator. The type of light-emitting devices, the light emission mechanism, light propagation in light emitting devices, lasing conditions, static characteristics of light output, temperature characteristics, and efficiency, materials and fabrication process of photonic devices, dynamic characteristics of light-emitting devices will be lectured. In addition, recent and advanced photonic devices which will be important in the photonic applications will be introduced.
In this lecture, the detail and practical knowledge of the photonic devices studied in undergraduate lectures of Optical and Electromagnetic Property in Semiconductors, Photonic Devices, and Opto-electronics will be understood.
At the end of this course, students will be able to:
1) Explain the operation principle of the photonic devices.
2) Explain the static and dynamic characteristics of the photonic devices.
3) Design the fundamental photonic devices.
4) Explain the characteristics of materials used in the photonic devices, and the fabrication technologies of photonic devices.
5) Explain the features and applications of advanced photonic devices.
photonics, optoelectronics, photonic device, light emitting device, semiconductor laser, LED
|Intercultural skills||Communication skills||Specialist skills||Critical thinking skills||Practical and/or problem-solving skills|
Students must familiarize themselves with topics described in the required learning section before coming to class.
Students are given exercise problems related to what is taught on that day to solve.
|Course schedule||Required learning|
|Class 1||Introduction to optoelectronics/photonics||Understand the wavelength range, frequency range, and amount of energy of light and photon. List up of use cases of photonics (optoelectronics) applications.|
|Class 2||Various light emitting devices||List up of various light emitting devices, and understand the difference of operation characteristics and applications.|
|Class 3||Principle of light emission||Understand the basics of electromagnetic radiation based on the dipole, and the state of electron in the crystal.|
|Class 4||Light waveguide in the light-emitting device||Understand the basic principle and mathematical analysis procedure of the light waveguide.|
|Class 5||Output, focusing and coupling of light||Understand the Huygens principle and the Gaussian function.|
|Class 6||Basic characteristics of the semiconductor light emitting device||Investigation of the device size, threshold current and output power of the semiconductor laser, and the device size, operation current and output power of LED.|
|Class 7||Temperature characteristics and efficiency of the semiconductor light emitting device||Investigation of the available temperature range of the light emitting device, and its restriction reasons.|
|Class 8||Exercise problems to assess the students’ level of understanding on what has been taught so far.||Test level of understanding and self-evaluate achievement for classes 1–7.|
|Class 9||Semiconductors for light emission device, and its material property||List up of the kind of semiconductors and the semiconductor used in the photonic device.|
|Class 10||Quantum effect structures and its application to photonic devices||Understand the mathematical analysis methods of potential well and density of states of semiconductor.|
|Class 11||Dynamic characteristics of light emission device||Understand the characteristics of carrier recombination and carrier lifetime.|
|Class 12||Single-mode laser and noise in laser||Investigation of mechanism of wavelength dependence of the optical gain and cavity loss.|
|Class 13||Surface emitting laser and micro-lasers||Investigation of the impact of the device size miniaturization of the laser. Investigation of the reflector and its reflectivity.|
|Class 14||Functional photonic devices||Investigation of dynamic functions required in photonic devices.|
|Class 15||Advanced photonic devices and its applications||Investigation of the novel photonic applications and features of photonic devices.|
Lecture using materials that faculty has created.
All materials used in class can be found on OCW-i.
[Japanese] Y. Suematsu and K. Iga, Introduction to Optical fiber communication, ISBN：978-4274220944, Ohmsha, 2017.
Students will be assessed on their level of understanding of principles and characteristics the photonic devices.
Students’ course scores are based on evaluation of understanding level for classes 1–7 and final exams (80%), and exercise problems for each classes (20%).
Students must have successfully completed Quantum Mechanics (EEE D201), Semiconductor Physics (EEE D211), and Electromagnetism (EEE E201, EEE E202, EEE E211) or have equivalent knowledge.
Students have been desired to have the following knowledge and skills: Optical and Electromagnetic Property in Semiconductors (EEE D331), Photonic Devices (EEE D361), Opto-electronics (EEE S361)
Tomoyuki Miyamoto, tmiyamot[at]pi.titech.ac.jp, 045-924-5059
Contact by e-mail in advance to schedule an appointment.