Title :
20 Msymbol/s, 128 QAM Coherent Optical Transmission over 500 km Using Heterodyne Detection with Frequency-stabilized Laser
Author :
Nakazawa, Masataka ; Yoshida, Masato ; Kasai, Keisuke ; Hongou, Jumpei
Author_Institution :
Research Institute of Electrical Communication, Tohoku University 2-1-1 Katahira, Aoba-ku, Sendai-shi, Miyagi-ken, 980-8577 Japan E-mail: nakazawa@riec.tohoku.ac.jp
Abstract :
We have successfully transmitted a 20 Msymbol/s, 128 QAM coherent signal over 500 km using heterodyne detection with a frequency-stabilized fiber laser and an offset-locking technique. Error free transmission (7 bit/symbol) was achieved.
Keywords :
Amplitude modulation; Fiber lasers; Frequency; High speed optical techniques; Optical fiber communication; Optical mixing; Optical modulation; Optical transmitters; Phase modulation; Quadrature amplitude modulation;
Conference_Titel :
Optical Communications, 2006. ECOC 2006. European Conference on
Conference_Location :
Cannes, France
Print_ISBN :
978-2-912328-39-7
Electronic_ISBN :
978-2-912328-39-7
DOI :
10.1109/ECOC.2006.4800895
