Title :
Noise figure measurements in phase-insensitive and phase-sensitive fiber parametric amplifier cascade
Author :
Tong, Zhi ; Bogris, Adonis ; Lundström, Carl ; McKinstrie, Colin ; Vasilyev, Michael ; Karlsson, Magnus ; Andrekson, Peter A.
Author_Institution :
Dept. of Microtechnol. & Nanosci., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
By cascading two non-degenerate inline fiber-optic parametric amplifiers, we observe NF ~2dB (beating phase-insensitive quantum limit) at 16-dB gain for the second (phase-sensitive) stage after subtracting the excess noise from the first (phase-insensitive) stage.
Keywords :
noise measurement; optical fibre amplifiers; optical parametric amplifiers; optical variables measurement; excess noise; gain 16 dB; noise figure measurements; nondegenerate inline fiber-optic parametric amplifiers; phase-insensitive fiber parametric amplifier cascade; phase-sensitive fiber parametric amplifier cascade; phase-sensitive stage; Gain measurement; Noise figure; Noise measurement; Optical fiber amplifiers; Optical fiber communication; Optical noise; Phase measurement; Phase noise; Semiconductor optical amplifiers; Stimulated emission;
Conference_Titel :
Optical Fiber Communication (OFC), collocated National Fiber Optic Engineers Conference, 2010 Conference on (OFC/NFOEC)
Conference_Location :
San Diego, CA
Electronic_ISBN :
978-1-55752-884-1
