Engineering topics

Yao, S. X.

Publications and source records attributed to Yao, S. X..

3 records

NASA NTRS1997

Microwave Signal Mixing by Using a Fiber-Based Optoelectronic Oscillator for Wavelength Division Multiplexed (WDM) Systems

Two WDM channels at 1320 nm and 1312 nm carring RF signals are simultaneously up/down converted by a fiber-based optoelectronic oscillator. The conversion efficiency are found to be ~ -8 dB and the incoming signals has no effects on the local oscillator spectral purity.

fiber optics satellite communications miscrowave e↗

NASA NTRS1997

Microwave Signal Mixing by Using a Fiber-Based Optoelectronic Oscillator for Wavelength Division Multiplexed (WDM) Systems

Explore the source record for details and available documents.

fiber optics photonic oscillator↗

NASA NTRS1997

An All-Optical Microwave Mixer with 8db RF Gain

An all-optical microwave mixer with an 8dB RF gain is demonstrated by using a semiconductor optical amplifier (SOA). 6GHz RF signal on a 1312 nm optical carrier is up-converted and down-converted to 1GHZ and 11 GHz by a 5GHz local oscillation (LO) signal on a 1320 nm optical carrier. Such a carrier could readily extend to millimeter wave range.

microwave mixer fiberoptics fiber optic transmissi↗