OPTICAL CONTROL OF MICROWAVES;
SEMICONDUCTOR JUNCTION LASERS;
D O I:
10.1049/el:19950237
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
The authors demonstrate the optical generation of extremely narrow linewidth millimetre-wave signals between 40 and 60GHz using a single-chip semiconductor laser. A dual-mode long-cavity multisection DFB semiconductor laser is driven at a subharmonic of the free-running-mode brat signal frequency to produce phase-locked millimetre waves with a 3dB linewidth of less than 10Hz and a 3dB locking range of similar to 500MHz.