Fabrication of a multichannel wavelength-division multiplexing-passive optical net demultiplexer with arrayed-waveguide gratings and diffractive optical elements.
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.
Pawlowski
E
E
Heinrich-Hertz-Institut fürNachrichtentechnik Berlin GmbH, Einsteinufer 37, 10587 Berlin, Germany. pawlowski@hhi.de
Ferstl
M
M
Hellmich
H
H
Kuhlow
B
B
Warmuth
C
C
Salgueiro
J R
JR