Title :
2R-Regeneration of an 80-Gb/s RZ-DQPSK Signal by a Nonlinear Amplifying Loop Mirror
Author :
Cvecek, K. ; Sponsel, K. ; Ludwig, R. ; Schubert, C. ; Stephan, C. ; Onishchukov, G. ; Schmauss, B. ; Leuchs, G.
Author_Institution :
Univ. of Erlangen-Nuremberg, Erlangen
Abstract :
The performance of a nonlinear amplifying loop mirror as a 2R-regenerator for an 80-Gb/s return-to-zero differential-quadrature-phase-shift-keyed signal has been investigated experimentally. A significant eye-opening improvement and a negative power penalty of up to 2.6 dB were obtained.
Keywords :
differential phase shift keying; nonlinear optics; optical pulse generation; optical repeaters; quadrature phase shift keying; 2R-regeneration; nonlinear amplifying loop mirror; return-to-zero differential-quadrature-phase-shift-keyed signal; Differential quadrature phase shift keying; Erbium-doped fiber amplifier; Fiber nonlinear optics; Mirrors; Optical fiber amplifiers; Optical fiber couplers; Optical fiber polarization; Optical interferometry; Phase noise; Pulse amplifiers; 2R-regeneration; All-optical regeneration; differential quadrature phase-shift keying (DQPSK); nonlinear amplifying loop mirror (NALM);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.903755
