title: Fabrication of a multichannel wavelength-division multiplexing-passive optical net demultiplexer with arrayed-waveguide gratings and diffractive optical elements.
abstract: A novel, to our knowledge, integrated wavelength-division multiplexing-passive optical net demultiplexer that uses an arrayed-waveguide grating and diffractive optical elements is presented. The demultiplexer is used to distribute 1.3-microm wavelength signals and to multiplex an eight-channel wavelength-division multiplexer spectrum at a 1.55-microm wavelength. The device shows high functionality and good optical performance. The measured cross talk was less than -21 dB, and the 3-dB bandwidth was determined to be 97 GHz, which is close to the theoretical value of 93 GHz. Average losses of 4.5 and 8 dB were measured for the 1.3- and the 1.55-microm signals, respectively.
authors.affiliation: Heinrich-Hertz-Institut fürNachrichtentechnik Berlin GmbH, Einsteinufer 37, 10587 Berlin, Germany. pawlowski@hhi.de
authors.forename: E
authors.initials: E
authors.lastname: Pawlowski
authors.forename: M
authors.initials: M
authors.lastname: Ferstl
authors.forename: H
authors.initials: H
authors.lastname: Hellmich
authors.forename: B
authors.initials: B
authors.lastname: Kuhlow
authors.forename: C
authors.initials: C
authors.lastname: Warmuth
authors.forename: J R
authors.initials: JR
authors.lastname: Salgueiro