Title :
A spectrum-efficient 80-Gbit/s DPSK transmitter using phase interleaving technology without optical-time or polarization-division multiplexing
Author :
Lu, Guo-Wei ; Miyazaki, Tetsuya
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol., Tokyo
Abstract :
We experimentally demonstrate a cost-effective 80-Gbit/s DPSK transmitter using phase interleaving without optical-time/polarization-division multiplexing. Two cascaded independent 40-Gbit/s modulations are time-interleaved to generate 80-Gbit/s DPSK with high spectrum efficiency: 20-dB bandwidth of only 0.68 nm.
Keywords :
differential phase shift keying; optical transmitters; spectral analysis; DPSK transmitter; bit rate 40 Gbit/s; bit rate 80 Gbit/s; cascaded independent modulations; phase interleaving technology; spectrum efficiency; Differential quadrature phase shift keying; High speed optical techniques; Interleaved codes; Nonlinear optics; Optical modulation; Optical polarization; Optical receivers; Optical sensors; Optical transmitters; Phase modulation;
Conference_Titel :
IEEE/LEOS Summer Topical Meetings, 2007 Digest of the
Conference_Location :
Portland, OR
Print_ISBN :
1-4244-0926-8
Electronic_ISBN :
1099-4742
DOI :
10.1109/LEOSST.2007.4288430
