Title :
Experimental demonstration of LDPC coded free-space, space-division-multiplexed systems using Orbital Angular Momentum modes
Author :
Yongxiong Ren ; Hao Huang ; Yequn Zhang ; Yang Yue ; Yan Yan ; Ahmed, Nova ; Djordjevic, Ivan B. ; Dolinar, Sam ; Willner, Alan E.
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
The performance of LDPC coded four-mode multiplexed Orbital Angular Momentum (OAM) data link using QPSK signal with net data rate of 320Gbit/s is experimentally investigated. The experiment results show that crosstalk effect can be efficiently mitigated and the LDPC codes with soft decoding can provide >7 dB coding depending on OAM crosstalk.
Keywords :
decoding; multiwave mixing; optical communication; optical crosstalk; parity check codes; quadrature phase shift keying; space division multiplexing; LDPC coded free-space; QPSK signal; bit rate 320 Gbit/s; crosstalk effect; data link; four-mode multiplexed; orbital angular momentum modes; soft decoding; space-division-multiplexed systems; Bit error rate; Crosstalk; Encoding; Gain; Laser beams; Lenses; Parity check codes;
Conference_Titel :
Optical Communications (ECOC), 2012 38th European Conference and Exhibition on
