Noise performance of optical fiber transmission links that use non-degenerate cascaded phase-sensitive amplifiers
Artikel i vetenskaplig tidskrift, 2010

Based on semi-classical theory, the noise performance of a multispan fiber optical transmission system employing a cascaded phaseinsensitive amplifier (PIA) and phase-sensitive amplifiers (PSAs) is investigated. Compared with the pure-PIA and pure-PSA based in-line amplification schemes, the copier + PSA scheme is found to improve the system NF by up to 6 and 3 dB, respectively, in an optimized long-haul fiber link, In addition, this cascaded configuration will significantly relax the requirement for accurate phase- and wavelength-locking which is rigorously needed in the pure-PSA configuration, This scheme is also modulation-format independent. As a proof of concept, the NF of a fiber parametric amplifier based copier + PSA cascade with inter-stage attenuation representing the fiber link is measured, which shows a 1.8-dB total NF improvement over the conventional EDFA cascade. © 2010 Optical Society of America.


Zhi Tong

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Colin McKinstrie


Carl Peter Lundström

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Magnus Karlsson

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Peter Andrekson

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Optics Express

1094-4087 (ISSN) 10944087 (eISSN)

Vol. 18 15 15426-15439


Elektroteknik och elektronik



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