Title :
Optically amplified downconverting link with shot-noise-limited performance
Author :
Williams, K.J. ; Esman, R.D.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
Experimental results of a 12-GHz downconverting optical link are presented that demonstrate shot-noise-limited performance at a maximum total photoreceiver current of 72 mA. A balanced photoreceiver is utilized to reject both laser intensity noise and noise added by an erbium-doped fiber amplifier. The receiver was constructed of four commercial 2-GHz photodetectors, each capable of detecting greater than 20 mA of average photocurrent with less than I-dB compression in received RF power.
Keywords :
fibre lasers; laser noise; microwave antennas; optical fibre networks; optical frequency conversion; optical noise; optical receivers; photoconductivity; photodetectors; shot noise; 12 GHz; 2 GHz; 20 mA; 72 mA; average photocurrent; balanced photoreceiver; compression; downconverting optical link; erbium-doped fiber amplifier; laser intensity noise; maximum total photoreceiver current; optically amplified downconverting link; photodetectors; received RF power; receiver; shot-noise-limited performance; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Laser noise; Optical fiber communication; Optical noise; Optical receivers; Photoconductivity; Photodetectors; Radio frequency; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
