High-sensitivity 40-gb/s RZ-DPSK with forward error correction

Author

Spellmeyer, Neal W. ; Gottschalk, Jeffrey C. ; Caplan, David O. ; Stevens, Mark L.

Author_Institution

Lincoln Lab., Massachusetts Inst. of Technol., Lexington, MA, USA

Volume

16

Issue

6

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1579

Lastpage

1581

Abstract

A high-sensitivity 40-Gb/s differential-phase-shift-keyed (DPSK) system with coding is demonstrated with back-to-back sensitivity as good as 8.7 photons per bit at a 10^-9 bit-error rate. Coding is done on the 40-Gb/s data using high-speed electrical multiplexers and demultiplexers combined with four 10-Gb/s forward error correction chips that operate with 7% overhead. The DPSK receiver uses a simple approach to DPSK balanced detection.

Keywords

demultiplexing equipment; differential phase shift keying; encoding; error statistics; forward error correction; multiplexing equipment; optical fibre communication; optical modulation; optical receivers; 40 Gbit/s; DPSK receiver; RZ-DPSK; bit-error rate; coding; demultiplexers; differential-phase shift-keying; forward error correction; high-speed electrical multiplexers; Band pass filters; Bit error rate; Differential quadrature phase shift keying; Forward error correction; High speed optical techniques; Optical attenuators; Optical fiber communication; Optical fiber polarization; Optical receivers; Tunable circuits and devices;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2004.827417

Filename

1300671