Title :
Reduction of four-wave-mixing in FSK FDM lightwave transmission systems by asymmetric repeated unequally spaced frequency allocations
Author :
Tamo, Takuya ; Numai, Takahiro
Author_Institution :
Grad. Sch. of Sci. & Eng., Ritsumeikan Univ., Kusatsu, Japan
Abstract :
In order to reduce four-wave mixing (FWM) noises in FSK-modulation/direct-detection FDM lightwave transmission systems, combination of dual deviation frequencies in the FSK modulation and asymmetric repeated unequally spaced frequency allocations is proposed, and FWM noises are theoretically analyzed. It is found that the crosstalk decreases by 8.59 dB and the allowable input optical power increases by 5.36 dB than those of the previous best results.
Keywords :
frequency division multiplexing; frequency shift keying; multiwave mixing; optical crosstalk; optical fibre communication; optical noise; FSK FDM lightwave transmission systems; asymmetric repeated unequally spaced frequency allocations; crosstalk; dual deviation frequencies; four wave mixing; noise; Frequency shift keying; Optical crosstalk; Optical fibers; Optical mixing; Radio spectrum management;
Conference_Titel :
Photonics Global Conference (PGC), 2010
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-9882-6
DOI :
10.1109/PGC.2010.5705927
