Title :
Backreflection and loss in single-fiber loopback networks
Author :
Feuer, Mark D. ; Thomas, Mikkel A. ; Lunardi, Leda M.
Author_Institution :
AT&T Labs., Red Bank, NJ, USA
Abstract :
We have studied the effects of network loss and back-reflections on single-fiber loopback transmission, in which a modulator replaces the optical source at the remote terminal. Combining a broad-band source at the host terminal with an amplified modulator at the remote terminal effectively suppresses the optical beat noise, allowing data transmission at 50 Mb/s with realistic loss budgets, even in the presence of Fresnel back-reflections as large as -15 dB.
Keywords :
light reflection; optical feedback; optical fibre losses; optical fibre networks; reflectivity; telecommunication network routing; wavelength division multiplexing; 50 Mbit/s; Fresnel back-reflections; amplified modulator; backreflection; broad-band source; host terminal; loss budgets; network loss; optical beat noise suppression; optical source; remote terminal; single-fiber loopback network loss; single-fiber loopback transmission; Fresnel reflection; Intelligent networks; Optical devices; Optical losses; Optical modulation; Optical noise; Optical receivers; Optical scattering; Propagation losses; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
