440-4227/01 – Optical Fiberless Systems (OBS)
Gurantor department | Department of Telecommunications | Credits | 4 |
Subject guarantor | Ing. Jan Látal, Ph.D. | Subject version guarantor | Ing. Jan Látal, Ph.D. |
Study level | undergraduate or graduate | Requirement | Choice-compulsory type A |
Year | 2 | Semester | winter |
| | Study language | Czech |
Year of introduction | 2021/2022 | Year of cancellation | |
Intended for the faculties | FEI | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
The subject main aim is to understand optical fiberless systems and their differences to optical fiber communication. Study materials are prepared so that students will be able to understand physical principles connected with this communication field as well as identify, apply and solve tasks from the field of optoelectronics and optical fiberless communications.
Teaching methods
Lectures
Tutorials
Experimental work in labs
Summary
The subject is focused on selected aspects of optical communication systems in the free space. The emphasis is laid on directed optical fiberless systems operated in the outdoor space as well as optical systems operating in the visible spectral range. Other part of this course is then dealing with modern trends of hybrid fiberless photonic systems also utilizing radio data transmission or satellite/space communication. Significant part of the course is also oriented on IrDa transmissions. During the lectures students will familiarize with main technologies, elements (LED/LD light sources, photodetectors), noises in optical communications or modulation techniques. Influence of atmospheric transmission environment on the optical beam data transfer will be presented as well.
Compulsory literature:
Recommended literature:
Way of continuous check of knowledge in the course of semester
Students must attend test and elaborate 5 laboratory tasks during semester. Subject is ending by exam that contains both written and oral part.
E-learning
Other requirements
Conditions for credit is submission of all protocols from laboratory tasks and passing mark from test.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures:
1) Introduction to optical fiberless systems.
2) Basics of geometrical optics (lences, focal point, imaging equations, etc.).
3) Basics of indoor and outdoor optical fiberless systems.
4) Optical transceivers for fiberless systems.
5) Optical receivers for fiberless systems.
6) Modulations, link codes and multi point access.
7) Atmospheric transmission environment.
8) Communication in the infrared spectra.
9) Communication in the visible spectra.
10) Safety measures in atmospheric communication.
11) Hybrid fiberless radio-optical communication systems.
12) Optical satellite communication.
Tutorials:
First introductory tutorial, work safety in the laboratory and safety operation with laser beam in the free space.
Five laboratory tasks during semester.
One tutorial is reserved for tests during semester and spare laboratory measurements.
The last tutorial in the semester is reserved for spare test if some students need it.
Laboratory tasks:
1) Measurement of laser radiation wavelength by difraction grating.
2) Measurement of artificial atmospheric phenomena influence on communication parameters of optical fiberless systems.
3) Measurement of fog influence on laser beam.
4) Measurement of laser beam shape changes due to turbulent environment.
5) Measurement of spectral and time properties of light radiation sources.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction