OSNR monitoring using Hi-Bi FBG for 10 Gbit/s optical networks

Author

Sousa, Ana O P ; Marques, C.A.F. ; Nogueira, R. ; André, P.S.

Author_Institution

Inst. de Telecomun., Aveiro, Portugal

fYear

2011

fDate

26-30 June 2011

Firstpage

1

Lastpage

4

Abstract

In this work we present a novel technique for optical signal to noise ratio (OSNR) monitoring based on the application of a high birefringent (Hi-Bi) fibre Bragg grating (FBG). The Hi-Bi FBG reflects two different spectral bands, due to the different effective refractive indexes for the optical field components along the two optical polarization axes. The OSNR can be determined using this technique by decomposing, for a data channel, the polarized signal information and the depolarized noise. This technique was used to retrieve the OSNR of an intensity-modulated signal at 10 Gb/s.

Keywords

Bragg gratings; birefringence; light polarisation; optical communication equipment; optical fibre networks; optical information processing; optical modulation; optical noise; refractive index; Hi-Bi FBG; OSNR monitoring; bit rate 10 Gbit/s; data channel; depolarized noise; high birefringent fibre Bragg grating; intensity modulated signal; optical networks; optical polarization; optical signal-to-noise ratio; polarized signal information; refractive index; signal decomposition; Bragg gratings; Monitoring; Optical fibers; Optical noise; Optical polarization; Signal to noise ratio; High birefringent fibre Bragg grating; Optical performance monitoring; Optical signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2011 13th International Conference on

Conference_Location

Stockholm

ISSN

2161-2056

Print_ISBN

978-1-4577-0881-7

Electronic_ISBN

2161-2056

Type

conf

DOI

10.1109/ICTON.2011.5971129

Filename

5971129