Optimized High Speed UTC Photodiode for 100 Gbit/s Applications

Author

Anagnosti, M. ; Caillaud, Christophe ; Blache, F. ; Jorge, Filipe ; Angelini, Philippe ; Paret, J.-F. ; Achouche, M.

Author_Institution

Dept. Electron. & Phys., Telecom SudParis, Evry, France

Volume

20

Issue

6

fYear

2014

fDate

Nov.-Dec. 2014

Firstpage

29

Lastpage

35

Abstract

In this paper we present an optimized high-speed uni-traveling carrier photo-diode (UTC PD) for 100 Gbit/s applications. The designed photodiode operates at 1.55 μm wavelength with a 3 dB bandwidth exceeding 110 GHz, a dark current of 1 nA at -2 V and a peak saturation current of about 30 mA at -2 V. A 40% bandwidth improvement is achieved by employing new optimized transmission lines (TMLs) to equalize the intrinsic response of the detector. In addition, results of the tested UTC, using 100 Gbit/s NRZ modulation format show considerably improved eye quality.

Keywords

optical communication equipment; optical modulation; optical testing; photodetectors; photodiodes; transmission lines; NRZ modulation format; TML; UTC PD; UTC testing; bandwidth improvement; bit rate 100 Gbit/s; current 1 nA; current 30 mA; dark current; eye quality; intrinsic response; optimized high speed UTC photodiode; optimized high-speed unitraveling carrier photodiode; optimized transmission lines; peak saturation current; photodetector; voltage -2 V; wavelength 1.55 mum; Bandwidth; Capacitance; Detectors; Distortion measurement; Modulation; Photodiodes; Transmission line measurements; High-speed photo-detector; OE response equalization; high speed coplanar transmission lines (TML); unitraveling carrier photodiode (UTC-PD);

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/JSTQE.2014.2316594

Filename

6797936