Title :
Fiber-optic parametric amplifier in a loop mirror configuration
Author :
Torounidis, Thomas ; Olsson, Bengt-Erik ; Sunnerud, Henrik ; Karlsson, Magnus ; Andrekson, Peter A.
Author_Institution :
Dept. of Microtechnol. & Nanosci., Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
A configuration of the fiber-optic parametric amplifier (FOPA) using an optical loop mirror is presented and evaluated. Previously presented setups usually suffer a 10-dB loss on the input for the signal wavelength. The setup presented in this letter allows, in principle, virtually lossless combination and separation of pump and signal. In addition, over 30-dB suppression of the pump was achieved in this configuration. Bit-error-rate measurements using the FOPA as preamplifier were compared to a thermal limited receiver. The receiver sensitivity for the FOPA was -30 dBm, which was 10 dB better than the thermally limited receiver.
Keywords :
error statistics; laser cavity resonators; laser mirrors; optical fibre amplifiers; optical parametric amplifiers; optical pumping; bit-error-rate measurements; fiber-optic parametric amplifier; loop mirror configuration; lossless combination; preamplifier; pump-signal separation; receiver sensitivity; Mirrors; Optical fiber amplifiers; Optical losses; Optical pumping; Optical receivers; Optical sensors; Preamplifiers; Semiconductor optical amplifiers; Stimulated emission; Wavelength measurement; Four-wave mixing (FWM); highly nonlinear fiber (HNLF); optical loop mirror (OLM); optical parametric amplifier;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.839779
