Title :
DQPSK Receiver tolerance to transmitter frequency stability
Author :
Marazzi, Lucia ; Parolari, Paola ; Boffi, Pierpaolo ; Siano, Rocco ; Feroldi, Matteo ; Martinelli, Mario
Author_Institution :
CORECOM, via G. Colombo, 81 ¿ 20133 Milan ¿ ITALY
Abstract :
In case of Differential Quadrature Phase Shift Keying transmission, the diode laser frequency instability affects the quality of the received signal. Free-running transmitters are employed to experimentally evaluate the tolerance of the interferometric DQPSK receiver to this instability. Heterodyne measure of the frequency offset is discussed for different transmitters. Experimental data are related both with BER performance and power penalty. Polarization-dependent delay impairment is isolated as well.
Keywords :
Bit error rate; Delay; Differential quadrature phase shift keying; Diode lasers; Frequency measurement; Frequency shift keying; Phase shifting interferometry; Polarization; Stability; Transmitters; DQPSK; Modulation format; phase modulation;
Conference_Titel :
Communications, 2006. ICC '06. IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
1-4244-0355-3
Electronic_ISBN :
8164-9547
DOI :
10.1109/ICC.2006.255197
