Opto-electronic converters and electro-optics
for optical interconnection network television
signal transmission production
George Lupu
Prof.Dr.Ing. Paul Şchiopu
Department of Electronic Technology
and Reliability
Romanian Television Society
Faculty of Electronics, Telecommunications
and Information
Technology, Polytechnic
University of Bucharest
Bucharest,
Bucharest., Romania
glupu95@gmail.com
Romania
This articol present conversion and connection devices for opto-electronics and electro-optics used in conectics necessary
to couple the optical bus television equipment for transmitting television signals resulting from the flow of television
production.
Keywords: opto-electronic, electro-optic, opticalbus, television
I.
I. INTRODUCTION
Extraction and the introduction of television signal transmission in optical bus, and its distribution or access
television equipment it is using connecting devices and opto-electronic or electro-optics conversion.
II.
II. OEO DEVICES AND OPTICAL FIBERS
A. EO and OE converter
So in a circuit as well as in communications within a communications system, is the need of introducing an
interface between the electric circuit and optic circuit.The simple interface of this type is optical-electricaloptical converter (OEO). In this paper, we chose the level OEO converters who are able to execute conversion
electro-optic/opto-electric directly without further processing the electric/optic signal receiving. The EO
converter that I use is a compact component whose reference is a DFB diode and OE converter is assembled
around a PIN diode. Overview of theoretical approach, packing technology and practical applications are
presented below. Results of studies, design and technological solutions applied in the market, have resulted in a
variety of devices according to the parameters required and the type of application required. How to make
dimensional geometry technology that gives both variants physical forms component and the component devices
are integrated within an integrated circuit
B. Converter EO
Electro-optical converter esteproiectat around a DFB diode and theoretical ests represented in the figures
below.
Figure 1.
DFB diode
Market appear electro-optical converters (EO) in different ways. We choose the manufacturers what is created
for use in television.
Figure 2. Electro-optical signal converter standarddefinition TV in format 4 / 3
Figure 3. Electro-optical signal converter highdefinition TV in format 16 / 9
C. Opto-electrical converter
As EO detectors can find variations based on the use of different models of electronic components that
correspond to achieving EO converters. Such an OE converter is based on using a PIN diode structure type.
Figure 4. PIN diode
The device can work up to frequencies of 100 GHz, power consumption is very small and is packed in
dimensional radiofrequency(RF) connectors for optical fibers. At the same, the device can sustain present high
power optical signals
Figure 5. Opto-electrical signal converter highdefinition TV in format 16 / 9
Figure 6.
D. Optical bus transmission signal television production
The figure below presents a production channel television signal transmission throughout its optical
processing chain. Extracting and placing television signal to television equipment is made using connectors,
converters of the type described above. There are geometric devices of various sizes but in current practice for
small distances interconnection, diveces are packed form using jack connectors (BNC, etc.).
Figure 7. Simplified diagram of a television channel production
REFERECES
[1] G. Lupu, Optical signal transmission on bus television, in a television corporation, Master Dissertation Faculty ETTI, PUB, 2009
[2] K.Iizuka, Elements of Photonics, Volume І&ІІ: In Free Space and Special Media, John Wiley&Sons, Inc., 2002
[3] F. Träger, Handbook-Springer of Lasers and Optics, Springer Science+Bussines Media, LLC New York, 2007
[4] A. Manea, Optical circuits and networks, Lecture Notes Masters EO, Faculty ETTI, PUB, 2008
[5] A Guide to Digital Television Systems and Measurements,Tektronix, Inc., Beaverton, Oregon, USA 1997
[6] BBC-HD Summary of Delivery Formats, http://www.bbc.co.uk/guidelines/dq
[7] A Guide to MPEG Fundamentals and Protocol Analysis, Tektronix Inc. Beaverton, Oregon, USA 2007
[8] T.Borer, T.Davies&A.Suraparaju, Dirac video compression, Research&Development BBC, 2005
[9] P. Schiopu, Optoelectronic devices, MATRIX ROM Publishing House, Bucharest 2009
[10] ITU-T, Rec. G653 (12/2003) Characteristics of a dispersion-shifted single-mode optical fibre and cable,Geneva 2004