Title :
Low phase noise 33-40-GHz signal generation using multilaser phase-locked loops
Author :
Davidson, Andrew C. ; Wise, Frank W. ; Compton, Richard C.
Author_Institution :
Dept. of Applied Phys., Cornell Univ., Ithaca, NY, USA
Abstract :
A technique is described in which multiple lasers are heterodyne phase locked in series to generate low phase noise millimeter-wave difference frequencies. The maximum frequencies generated are limited neither by the bandwidth of the loop components nor by the frequency of the radio frequency source. By locking together three external-cavity lasers, 33-40.5-GHz signals are produced with very low phase noise.
Keywords :
laser beam applications; microwave links; millimetre wave generation; optical fibre communication; optical modulation; optical phase locked loops; phase noise; semiconductor lasers; 33 to 40 GHz; EHF; MM-wave difference frequencies; MM-wave fibre-optic links; external-cavity lasers; heterodyne phase locking; low phase noise signal generation; multilaser PLLs; multilaser phase-locked loops; Laser noise; Millimeter wave communication; Millimeter wave technology; Optical crosstalk; Optical modulation; Phase locked loops; Phase noise; Radio frequency; Semiconductor device noise; Signal generators;
Journal_Title :
Photonics Technology Letters, IEEE
