Title :
Indirect optically injection-locked oscillator for millimeter-wave communication system
Author :
Wang, Xu ; Gomes, Nathan J. ; Gomez-Rojas, Luis ; Davies, Phillip A. ; Wake, David
Author_Institution :
Electron. Eng. Labs., Kent Univ., Canterbury, UK
fDate :
12/1/2000 12:00:00 AM
Abstract :
A millimeter-wave optically injection-locked oscillator has been designed and fabricated. It represents the first millimeter-wave hybrid transistor oscillator locked to a long-wavelength optical signal. The oscillator could be used as a photoreceiver in remote base stations in future picocellular communication systems employing fiber-optic backbones; its high “gain” (output relative to input locking signal) and relative flatness in output power may make it attractive compared to simple millimeter-wave amplifier configurations. Measurement results show the output signal exhibits little variation (less than 0.7 dB) with input optical power changes of 6 dB. A locking bandwidth of 2.6 MHz has also been achieved
Keywords :
broadband networks; field effect transistor circuits; injection locked oscillators; millimetre wave circuits; optical receivers; picocellular radio; 2.6 MHz; fiber-optic backbones; flatness; locking bandwidth 2.6 MHz; long-wavelength optical signal; mm-wave communication; mm-wave hybrid transistor oscillator; optical power changes 6 dB; optically injection-locked oscillator; photoreceiver; picocellular communication; remote base stations; variation below 0.7 dB; Base stations; Injection-locked oscillators; Millimeter wave communication; Millimeter wave transistors; Optical design; Optical fiber communication; Power amplifiers; Power generation; Spine; Stimulated emission;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
