Title :
Reduced phase noise in microwave oscillators due to optical signal injection
Author :
Genco, S.M. ; Mickelson, Alan R.
Author_Institution :
Zybek Adv. Products Inc., USA
Abstract :
Optical injection of MESFET oscillators shifts the circuit´s operating frequency, locks the microwave frequency to the optical carrier, and reduces the frequency noise of the oscillator. The main result is the phase noise is decreased 110 dBc/Hz when locked to the modulated lasers. Phase noise is measured with no optical injection, with a single modulated laser injected and with a heterodyned injection locked laser signal.<>
Keywords :
MESFET integrated circuits; field effect MMIC; injection locked oscillators; integrated circuit noise; optical modulation; phase noise; MESFET oscillators; frequency noise reduction; heterodyned injection locked laser signal; microwave frequency locking; microwave oscillators; operating frequency shift; optical signal injection; phase noise reduction; single modulated laser; Frequency; Laser noise; MESFET circuits; Masers; Microwave oscillators; Optical mixing; Optical modulation; Optical noise; Phase modulation; Phase noise;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.406207
