Evaluation of All-Optical Demultiplexing in Millimeter-Wave Subcarrier-System for Wireless Communication

• In this paper, a scheme for multiplexing millimeter-wave carriers on a single optical carrier and using an all-optical millimeter-wave demultiplexer is presented. The optical demultiplexing of radio-over-fiber signals is based on dual sideband modulation with suppressed optical carrier combined with the filtering properties of dual over-written fiber Bragg gratings. The performance of the system is investigated using a single optical carrier and independent data modulated millimeterwave signals at 20 and 40 GHz. The signals are transmitted over optical fiber, demultiplexed and wirelessly distributed to a mobile unit. It is found that performance of the demultiplexing using fiber Bragg gratings gives less than -40 dB electrical power interchannel crosstalk and the spurious free dynamic range is measured to be 80 dB.Hz^(2/3). Furthermore, PSK, QAM and ASK PRBS modulated dataup to 2.5 Gb/s are successfully transmitted through thewireless link.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)

Keyword

demultiplexing

Microwave photonics

millimeter-wave

fiber Bragg gratings

analog links

wireless communication

Publication and Content Type

kon (subject category)

ref (subject category)