Practicum Optoelectronic II

(Mr. Jyoti Shrestha, M.Sc.)

Theory:
The fundamentals of semiconductor lasers and the optical properties of resonator structures.

Experiment:
Characterization of semiconductor lasers.

Goals

• Understanding the characteristics of semiconductor lasers.
• Horizontal cavity DFB lasers
• Electrical pumping
• Optical output power
• Optical modes in diode lasers
• Wavelength shift due to temperature change and injection current variation

What you will gain from the practicum

• You will learn the fundamentals of semiconductor lasers – how they work, what influences their characteristics and what makes a laser beam different from the beam of a flashlight. It gives quick understanding about laser-based novel applications such as optical communication.
• Valuable documentation of the results.
• Team-based working experience in a modern research environment.

General information

The student team is supervised by Mr. Shrestha, who is responsible for the coordination of the practicum for all participating students. The working schedule for the experiment is flexible.

Experimental modules such as a laser diode, sample stage, an optical spectrum analyzer and PC are assembled to measure laser characteristics. The laser diode will be characterized as a function of injection current and temperature. The student team will measure the optical output power, optical modes in diode lasers and the wavelength shift due to temperature change of the laser diodes. The measured data will be analyzed and documented.

Course prerequisite

Those who have attended or are attending Optoelectronics I and Optoelectronics II lectures are invited to participate in the practicum. Physics and Nanostructure Science students are asked to contact the supervisor individually.

Literature

• H. Hillmer , S. Hansmann, and T. Kusserow Semiconductor lasers. In: F. Träger (Hrsg.), Springer Handbook of Lasers and Optics,  Springer Verlag, pp. 695-726 (2007).
• S. M. Sze, Physics of Semiconductor Devices, John Wiley & Sons, 2nd Edition (1981).
• B. Mroziewicz, B. Mroziewicz, and W. Nakwaski, Physics of Semiconductor Lasers, North-Holland, Amsterdam (1991).
• G. P. Agrawal and N. K. Dutta, Long Wavelength Semiconductor Lasers, Van Nostrand (1986).
• L. A. Coldren and S. W. Corzine, Diode Lasers and Photonic Integrated Circuits, John Wiley, New York (1995).
• T. Suhara, Semiconductor laser fundamentals, Marcel Dekker, Inc., New York (2004).

Curriculum

• Elektrotechnik Diplom I und II, Abschluss 14, (14048), ECE-Studiengang, Abschluss 88, Mechatronik, Informatik (Bachelor und Master)
• Wahlveranstaltung für das Nachrichtentechn. Praktikum I, II oder III

First meeting (Kick-off)

On 11th May, 2012 at 9am until 10am. Please come to INA Heinrich-Plett-Straße 40, third floor, room 3107.

Registration for the practicum

Please register in HISLSF until 10th May, 2012.

Note that the deadline for the enrolement for the examination in OKA or HIS will be 31st May, 2012. Without this registration you will not be allowed to participate in the practicum!!! Bear in mind that 5 days ahead of the deadline, registration is not possible anymore. So please do it in time!!!

Start of the practicum will be 29th May, 2012.

 
For questions contact Mr. Shrestha by email.
 
LINK HISLSF