Title :
In-phase and quadrature detection using 90° optical hybrid receiver: experiments and design considerations
Author :
Hodgkinson, T.G. ; Harmon, R.A. ; Smith, D.W. ; Chidgey, P.J.
Author_Institution :
British Telecom Res. Labs., Ipswich, UK
fDate :
6/1/1988 12:00:00 AM
Abstract :
140 Mbit/s ASK and DPSK optical hybrid receiver performance measurements are reported and discussed. The sensitivity of this type of receiver to polarisation misalignment is compared with that of a standard coherent (homodyne/heterodyne) receiver. The effects of laser phase noise and offsetting of the intermediate frequency from zero hertz are discussed along with other potential applications for 90° optical hybrid in-phase and quadrature receivers
Keywords :
amplitude modulation; digital communication systems; optical communication equipment; phase shift keying; receivers; 140 Mbit/s; 90° optical hybrid receiver; ASK; DPSK; design; in phase detection; intermediate frequency offsetting; laser phase noise; performance; polarisation misalignment; quadrature detection; sensitivity;
Journal_Title :
Optoelectronics, IEE Proceedings J
