Title :
Laser-diode-based optoelectronic subharmonic phase-locked loop
Author :
Lin, Gong-Ru ; Yang, Chien-Rong ; Pan, Ci-Ling
Author_Institution :
Inst. of Electro-Optical Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
10/1/1995 12:00:00 AM
Abstract :
An optoelectronic technique for synthesis of frequency-versatile electrical signals phase-locked to the optical clock is proposed. The key component is an integrated-optic modulator (IOM) operated in the nonlinear regime. With a photodetector, the IOM functions as an optoelectronic subharmonic mixer for intermixing microwave signals that are subharmonics of the optical clock. As a first demonstration, phase-locked subharmonics and fractional harmonics of the optical clock at f0=500 MHz, with frequency equal to f0/n or (m/n)f0, where n=3,3,4... and m/n=2/5,2/3,4/3,3/2 and 5/3, etc., are generated and characterized
Keywords :
integrated optoelectronics; microwave mixers; optical modulation; optical phase locked loops; 500 MHz; electrical signal synthesis; fractional harmonics; laser diode; microwave signals; mixer; nonlinear integrated-optic modulator; optical clock; optoelectronic technique; phase-locked loop; photodetector; subharmonics; Character generation; Clocks; Frequency synthesizers; Masers; Nonlinear optical devices; Nonlinear optics; Optical modulation; Phase locked loops; Photodetectors; Signal synthesis;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
