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Dive into the research topics where Jürgen Otterbach is active.

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Featured researches published by Jürgen Otterbach.


IEEE Photonics Technology Letters | 1992

Analog video distribution system with three cascaded 980 nm single-pumped EDFA's and 73 dB power budget

Henning Bülow; Rainer Fritschi; Rolf Heidemann; Bernhard Junginger; Heinz Krimmel; Jürgen Otterbach

A FTTH (fiber to the home)-system for 35 AM-VSB (amplitude modulation vestigial sideband) PAL TV-signals is presented with three cascaded EDFAs (erbium-doped fiber amplifiers) single-pumped with commercially available 980 nm semiconductor laser diodes, with only one optical isolator per amplifier and without any optical filter. This EDFA design leads to an optical distribution system that is cost competitive as compared to coax solutions. The high-optical output power (+13 dBm) in conjunction with the low noise performance (max NF=4.5 dB) allows a 73-dB power budget for a weighted video signal to noise ratio of 45 dB. A high split count of 4*32*64*64=524288 subscribers is realized.<<ETX>>


Archive | 1996

Optical amplifier device

Jürgen Otterbach; Thomas Pfeiffer


Archive | 1994

Optical coupler and amplifier

Rolf Rossberg; Rainer Fritschi; Jürgen Otterbach; Rolf Heidemann


Archive | 2000

Method of generating a clock signal for the upstream channel of a bidirectional point-to-multipoint network

Jürgen Enssle; Hardy Halbauer; Jürgen Otterbach


Archive | 2005

Method for preventing attacks on a network server within a call-based-services-environment and attack-prevention-device for executing the method

Karsten Oberle; Marco Tomsu; Peter Domschitz; Jürgen Otterbach


Archive | 1995

Optical communication system for cable-television signals and for subscriber-assigned signals

Rolf Heidemann; Gustav Veith; Jürgen Otterbach


Archive | 1993

Fiber optic amplifier with feedback insensitive pump laser

Rolf Heidemann; Jürgen Otterbach


Archive | 1994

Fiber-optic amplifier with a facility for monitoring the pump power and input power

Henning Bülow; Jürgen Otterbach


Archive | 2007

Method of reducing a peak to average power ratio of a modulated signal

Joerg Schaepperle; Jürgen Otterbach


Archive | 2007

Symbol timing estimation in OFDMA systems

Hardy Halbauer; Erhard Sailer; Jürgen Otterbach

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