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=====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 Polymer Optical Fibres for In-house Cabling Jürgen Krauser, Olaf Ziemann Deutsche Telekom AG Technologiezentrum.

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Presentation on theme: "=====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 Polymer Optical Fibres for In-house Cabling Jürgen Krauser, Olaf Ziemann Deutsche Telekom AG Technologiezentrum."— Presentation transcript:

1 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 Polymer Optical Fibres for In-house Cabling Jürgen Krauser, Olaf Ziemann Deutsche Telekom AG Technologiezentrum Darmstadt Goslarer Ufer 35 D 10589 Berlin, Germany Tel. : +49 30 3497 - 4422, -4442 Fax.:+49 30 3497 - 4968, -4443 e-mail: krauser@07.bln0.telekom400.dbp.de ziemann@tzd.telekom.de

2 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 1. Introduction 2. Some basic properties 3. State of POF availability 4. Transmitters for POF 5. Standard for POF 6. Realised POF transmission systems 7. Example for In-house network based on POF 8. Conclusion Polymer Optical Fibres for In-house Cabling

3 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 Advantages of Polymer Optical Fibres High flexibility Easy handling and processing EMI immunity Low cost components High bandwidth Low attenuation ATM requirements Alternative to copper based cable system 1. Introduction

4 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 2. Some basic properties

5 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 Attenuation of optical fibres

6 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 3. State of POF availability

7 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 Attenuation Spectra of various POF

8 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 4. Transmitters for POF

9 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 Spectra of red and green LEDs in relation to attenuation minima of POF

10 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 Attenuation minima at 520 nm, 580 nm and 650 nm GaAlAs: wavelength 660 nm,efficiency up to 15 % AlInGaP:wavelength 650 nm, efficiency up to 10 % AlInGaP:wavelength 590 nm, efficiency up to 5 % GaAsP:wavelength 580 nm, efficiency up to 0,5 % AlInGaP:wavelength 570 nm, efficiency up to 1 % GaP:wavelength 555 nm, efficiency up to 0,1 % InGaN:wavelength 520 nm, efficiency up to 5 % InGaN:wavelength 500 nm, efficiency up to 8 % Materials for POF Systems

11 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 Basic materials for optical transmitters

12 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 5. Standard for POF ATMForum Specification

13 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 6. Applications for POF transmission systems Source: Koike, POF´96, Paris: "Status of POF in Japan", pp. 1-4

14 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 Realised POF transmission systems

15 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 7. Example for an In-house Network based on POF

16 =====!"§ Deutsche Telekom ANCIT J. Krauser 31.03.1998 8. Conclusion Commercial available: Standard- and Low-NA POF, POF-Systems at 650 nm for bitrates up to 155 Mbps over 50 m or 100 Mbps over 70 m. Standard: ATM Forum specifications New developments: Use of green and yellow LED for PMMA-Fibre Increasing bandwidth by using GI-POF (up to 2,5 Gbit/s) Increasing distance by using fluorinated POF (up to 2 km) High speed transmitter by VCSEL


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