Blind Optical Modulation Format Identification From Physical Layer Characteristics

Author

Adles, Eric J. ; Dennis, M.L. ; Johnson, Wallace R. ; McKenna, T.P. ; Menyuk, Curtis R. ; Sluz, Joseph E. ; Sova, Raymond M. ; Taylor, Michael G ; Venkat, Radha A.

Author_Institution

Johns Hopkins Univ. Appl. Phys. Lab., Laurel, MD, USA

Volume

32

Issue

8

fYear

2014

fDate

15-Apr-14

Firstpage

1501

Lastpage

1509

Abstract

We describe and experimentally demonstrate automated identification of optical modulation formats exclusively from physical-layer signal characteristics. The system identifies the data encoding as on-off keyed versus binary or quadrature phase-shift keyed, as well as auxiliary modulation profiles. The symbol clock rate and optimal dispersion compensation are also determined. We have validated this system with over 1500 test cases. These are enabling functionalities for a universal optical receiver and for a cognitive optical network architecture that optimizes utilization of available optical bandwidth. We demonstrate the capabilities of the system using a wavelength division multiplexed signal consisting of 19 channels, with multiple modulation formats and widely varying dispersions, signal strengths, and optical signal-to-noise ratios.

Keywords

amplitude shift keying; optical fibre dispersion; optical fibre networks; optical modulation; optical receivers; quadrature phase shift keying; wavelength division multiplexing; auxiliary modulation profiles; binary phase-shift keying; blind optical modulation format identification; cognitive optical network architecture; data encoding; dispersion compensation; multiple modulation formats; on-off keying; optical bandwidth; optical signal-to-noise ratio; physical-layer signal characteristics; quadrature phase-shift keyed; signal strength; symbol clock rate; universal optical receiver; wavelength division multiplexed signal; Bandwidth; Binary phase shift keying; Clocks; Dispersion; Optical signal processing; Coherent communications; fiber optics communications; optical modulation;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2014.2307555

Filename

6746643