Title :
Impact of laser intensity noise on ASK two-port optical homodyne receivers
Author :
Kazovsky, Leonid G. ; Elrefaie, Aly F. ; Meissnert, P. ; Welter, R. ; Crespo, Paulo ; Gimlett, J. ; Smith, R.W.
Author_Institution :
Bell Communications Research, Red Bank, USA
Abstract :
The letter describes initial experimental results obtained with a multiport optical homodyne receiver employing a DFB laser. The receiver performance is found to be limited by the intensity noise of the local oscillator rather than by the phase noise, even when the product of the IF linewidth and the bit duration is as large as 0.56. A relative intensity noise level of at least ¿ 140dB/Hz will be required for a satisfactory receiver performance with ¿ 15dBm local oscillator power.
Keywords :
optical communication; optical communication equipment; ASK; DFB laser; IF linewidth; bit duration; experimental results; laser intensity noise; local oscillator intensity noise; local oscillator power; multiport optical homodyne receiver; optical receivers; phase noise; receiver performance; two-port optical homodyne receivers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870617