Title :
Increasing Dispersion Tolerance for Quaternary Optical ASK-DPSK by Chirp-Free Modulation
Author :
Freckmann, Torsten ; Speidel, Joachim
Author_Institution :
Inst. of Telecommun., Stuttgart Univ.
Abstract :
We show that the dispersion tolerance of quaternary ASK-DPSK can be significantly increased by chirp-free modulation. We compare our results to DQPSK, an alternative quaternary modulation format and consider both NRZ and RZ impulse shaping
Keywords :
chirp modulation; differential phase shift keying; optical fibre communication; optical fibre dispersion; optical modulation; quadrature phase shift keying; DQPSK; NRZ impulse shaping; RZ impulse shaping; chirp-free modulation; dispersion tolerance; quaternary modulation format; quaternary optical ASK-DPSK; Amplitude modulation; Band pass filters; Chirp modulation; Low pass filters; Optical filters; Optical modulation; Optical signal processing; Optical transmitters; Phase modulation; Signal generators;
Conference_Titel :
Lasers and Electro-Optics Society, 2006. LEOS 2006. 19th Annual Meeting of the IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-9555-7
Electronic_ISBN :
0-7803-9555-7
DOI :
10.1109/LEOS.2006.279230
