Title :
Demonstration of Programmable In-Band OSNR Monitoring Using LCFBG With Commercial Thermal Printer Head
Author :
Ruoxu Wang ; Ming Tang ; Liangjun Zhang ; Hailiang Zhang ; Zhenhua Feng ; Rui Lin ; Songnian Fu ; Deming Liu ; Shum, Perry Ping
Author_Institution :
Nat. Eng. Lab. for Next Generation Internet Access Syst., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
We proposed and experimentally demonstrated a programmable optical signal-to-noise ratio (OSNR) monitoring scheme by using linearly chirped fiber Bragg grating (LCFBG) and a commercial thermal printer head. For the coherent optical orthogonal frequency-division multiplexing (CO-OFDM) transmission system, the monitor´s working wavelength can be flexibly software-controlled from 1530 to 1538 nm to support standard ITU-T grid or flex-grid operation. The linear OSNR monitoring range has been achieved from 9 to 26 dB for a 16-quadrature amplitude modulation (QAM) OFDM transmission system with negligible errors, respectively. Neither chromatic dispersion nor polarization mode dispersion affect the monitoring accuracy of our system.
Keywords :
Bragg gratings; OFDM modulation; optical fibre communication; optical fibres; thermal printers; 16-quadrature amplitude modulation; LCFBG; coherent optical orthogonal frequency-division multiplexing transmission system; commercial thermal printer head; flex-grid operation; linearly chirped fiber Bragg grating; programmable in-band OSNR monitoring; programmable optical signal-to-noise ratio monitoring scheme; standard ITU-T grid; Adaptive optics; Monitoring; Optical fibers; Optical filters; Optical noise; Optical variables measurement; Signal to noise ratio; Optical signal-to-noise ratio (OSNR); fiber gratings; optical communications;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2015.2445827
