Monolithic InP Receiver Chip With a Variable Optical Attenuator for Colorless WDM Detection

Author

Runge, Patrick ; Schubert, S. ; Seeger, Angela ; Janiak, Klemens ; Stephan, Jens ; Trommer, Dirk ; Nielsen, M.L.

Author_Institution

Heinrich-Hertz-Inst., Fraunhofer-Inst. fur Nachrichtentechnik, Berlin, Germany

Volume

26

Issue

4

fYear

2014

fDate

Feb.15, 2014

Firstpage

349

Lastpage

351

Abstract

We demonstrate a monolithically integrated quadrature coherent receiver photonic integrated circuit (PIC) on an InP substrate. The PIC comprises a 90° optical hybrid, a variable optical attenuator (VOA), and four RF photodetectors. With a dynamic range of 25 dB, the VOA enables the usage of the receiver PIC for colorless WDM detection.

Keywords

indium compounds; integrated optics; light coherence; monolithic integrated circuits; optical attenuators; optical design techniques; optical fibre communication; optical fibre fabrication; optical receivers; photodetectors; wavelength division multiplexing; InP; colorless WDM detection; gain 25 dB; hybrid optics; indium phosphide substrate; monolithic indium phosphide receiver chip; monolithically integrated quadrature coherent receiver PIC; photonic integrated circuir; radiofrequency photodetectors; variable optical attenuator; Attenuation; Indium phosphide; Optical attenuators; Photodiodes; Radio frequency; Receivers; Wavelength division multiplexing; 90$^{circ}$ hybrid; Monolithic InP receiver; coherent detection; colorless WDM detection; variable optical attenuator;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2293635

Filename

6678575