Fraunhofer-Institut

5

FRAUN

GERMANY

Address and references

Fraunhofer-Institut für Integrierte Schaltungen

Optical communications Am Wolfsmantel 33

D-91058 Erlangen

Germany

General description, expertise and role in the project

Since 1986, the Fraunhofer-Institut for Integrated Circuits (IIS) has been designing integrated circuits in silicon and GaAs technologies. In 1999, the project group Optical Communications was started with the goal to develop optical and electronic components for optical short range transmission systems. Recently, several devices for optical data links in BiCMOS, SiGe-HBT and InP-HBT technologies have been designed and manufactured via cooperation partners. Those devices include a pseudo random bit sequence generator (PRBS) with 4x10 Gbit/s outputs, a demultiplexer for 4x10 Gbit/s to 16x2.5 Gbit/s as well as various amplifiers with bandwidths up to 60 GHz. For Fiber-To-The-Home-Applications (FTTH) a chip set has been developed including laser driver, transimpedance and limiting amplifier. For optical short range transmission, integrated optical receivers with data rates up to 10 Mbit/s have been developed.

Moreover, the project group is working in the field of optical short range transmission systems on hard clad silica (HCS)- and polymer optical fibers (POF). For this purpose, optical multiplexers and demultiplexers for wavelength division multiplexing have been realized as prototypes. Fiber pigtails, couplers, splitters and optoelectronic converters like laser drivers and transimpedance amplifiers have also been built within this scope of applications.

In the proposed project, Fraunhofer intends to investigate and develop components like edge-emitting red laser diodes and integrated receivers with photodiodes as well as to perform transmission experiments with large-core POF in the Gbit/s-range.

The total number of person-months dedicated to the POF-ALL project is 40.

Facilities

The project group has two major laboratories for electrical/high frequency and optical measurements. In the high frequency lab we can perform measurements on wafer, chip and component level in the frequency range from DC to 60 GHz. Our equipment includes the following devices that can be used in the project:

• Vector network analyzer to 60 GHz
• Spectrum analyzer to 40 GHz
• Pattern Generator and BERT to 13.5 Gbit/s
• Semiautomatic Wafer Prober
• Sampling Oscilloscope to 50 GHz
• Rapid Prototyping Equipment for PCB fabrication

In our optical lab we perform measurements from the visible to IR spectral range and – among others -  can use:

• Vibration Isolation Equipment
• Optical spectrum analyzer from 350 nm – 1750 nm
• High speed optical receiver (15 GHz)
• High resolution opto-mechanical measurement system
• Grinding and polishing machine for optical fibers

Relevant publications

1.      O. Weiß , J. Sundermeyer, N. Michel, N. Weber, "Universal Optoelectronic Integrated Circuit for High Dynamic Range Measurement of  Low Light Intensities", Sensor 2003, 11. Internationale Messe mit Kongreß, Nürnberg

2.       S. Junger, W. Tschekalinskij, N. Weber, Video Distribution and Multimedia Transmission Systems for Home Networks, Plastic Optical Fibers Conference 2003, Seattle 17.9.2003

3.       N. Weber, W. Tschekalinskij, S. Junger, A. Plötz, Transmission of CATV-Signals with High Carrier Frequencies Using Step Index POF, Plastic Optical Fibers Conference 2003, Seattle 17.9.2003

4.       S. Junger, W. Tschekalinskij, N. Weber, Multimedia and multiservice systems for home, office and industrial networks, Asia-Pacific Optical and Wireless Communications Conference 2003, Wuhan, China, 4.11.2003

5.      S. Junger, W. Tschekalinskij, A. Plötz, N. Weber, Übertragung des Kabelfernsehbandes mit polymeroptischen Fasern, 10. ITG-Fachtagung Kommunikationskabelnetze, 10.-11. Dezember 2003, Köln

6.       N. Michel, N. Weber, J. Sundermeyer, H. Humpfer, U. Nowotny, M. Lang: A Novel Single-Ended To Differential Converter In A High Bit Rate Clock And Data Recovery Input Circuit, Symposium on Opto- and Microelectronic Devices and Circuits 2004, Wuhan, China, März 2004

7.       S. Junger, W. Tschekalinskij, A. Ploetz, N. Weber, M. Naritomi, CATV Transmission with Graded Index POF, FiberComm Conference, Munich, May 2004

8.       N. Michel, N. Weber, H. Humpfer, U. Nowotny, M. Lang: A Novel Method To Linearise Phase Response Of Single-Ended To Differential Converters For High Bit Rates, International Microwave Symposium 2004, Fort Worth, Texas, June 2004

9.       J. Sundermeyer, N. Michel, N. Weber, J. Sauerer: An Alexander half-rate phase detector for 80 Gb/s, 2004 International Symposium on Signals, Systems, and Electronics ISSSE'04, Linz, August 2004

10.   S. Trotta, J. Sundermeyer, N. Weber, J. Sauerer: A Novel Design of an Asymmetric D-Latch, 2004 IEEE Topical Meeting on Si Monolithic ICs in RF Systems (SiRF04), Atlanta 2004

11.   S. Junger, M. Schrader, A. Ploetz, W. Tschekalinskij, N. Weber: High linearity CATV transmission with GI-POF and SI-POF, 13^th International Plastic Optical Fibers Conference 2004, Nürnberg, September 2004

12.   S. Junger, B. Offenbeck, W. Tschekalinskij, N .Weber: IEEE 1394 transmission with SI-POF at 800 Mbit/s, 13^th International Plastic Optical Fibers Conference 2004, Nürnberg, September 2004

13.   W. Tschekalinskij, S. Junger, N. Weber: Bidirectional signal transmission with WDM on polymer cladded fiber (PCF) over 500 m, 13^th International Plastic Optical Fibers Conference 2004, Nürnberg, September 2004

14.   W. Tschekalinskij, E. Pokrovskaja, S. Junger, N. Weber: Field-Theoretical Approach for Modeling Frequency Response of Polymer Step-Index Fiber, 13^th International Plastic Optical Fibers Conference 2004, Nürnberg, September 2004

15.   O. Weiß: Extrem niedrige Lichtleistungen präzise messen, Elektronik, September 2004

CV partner reference person

Norbert Weber was born in Weißenohe, Germany, in 1959. He received the Dipl.-Ing. and Dr.-Ing. degrees in electrical engineering from the university of Erlangen-Nuernberg in 1986 and 1989, respectively. In 1990, he joined the Fraunhofer-Institute for Integrated Circuits in Erlangen where he was involved in the development of a microwave spectrometer for gas analysis. In 1993 he became responsible for the microsystems and sensors group and since 1999 for the optical communications group of the same institute. He has authored or co-authored more than 35 journal and conference papers and holds 5 patents. Currently his research interests include high-speed circuit design and modelling and optical communications. Dr. Weber is a member of the IEEE Microwave Theory and Techniques Society (IEEE MTT-S), the Laser and Electro-Optics Society (LEOS) and the Solid-State Circuits Society (SSC). He received the 1986 Diploma Award from the technical faculty of the university of Erlangen-Nuernberg and  the Georg-Waeber-Innovation Award in 2004