Title :
Reduction of Rayleigh Back-Scattering Noise Using RF Tone in RSOA Based Bidirectional Optical Link
Author :
Jae-min Lee ; Dae-Won Lee ; Yong-Yuk Won ; Soo-Jin Park ; Sang-Kook Han
Author_Institution :
Dept of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
The performance of bidirectional optical transmission system using the same wavelength can be degraded by Rayleigh backscattering signal. The backscattered signal makes phase noise and it is detected as intensity noise of baseband in photodiode. The unwanted noise interferes with the wanted data signals. The upstream baseband noise can be reduced by frequency chirp induced by RF tone combination in RSOA. We can get 1.5 dB power budget from this method through 1.25 Gbps, 20 Km bidirectional transmission using RSOA. Verification of the proposed technique has been performed through transmission experiment.
Keywords :
Rayleigh scattering; optical communication equipment; optical fibre communication; phase noise; semiconductor optical amplifiers; RF tone; RSOA; Rayleigh back-scattering noise reduction; bidirectional optical link; bit rate 1.25 Gbit/s; frequency chirp; intensity noise; phase noise; photodiode; upstream baseband noise; Backscatter; Baseband; Degradation; Noise reduction; Optical fiber communication; Optical noise; Phase detection; Phase noise; Photodiodes; Radio frequency;
Conference_Titel :
Optical Fiber communication/National Fiber Optic Engineers Conference, 2008. OFC/NFOEC 2008. Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-55752-856-8
DOI :
10.1109/OFC.2008.4528133
