Paper Review Introduction Optical Generation of Microwave - PowerPoint PPT Presentation

Paper Review  Introduction  Optical Generation of Microwave Signals  All-Optical Microwave Signal Processing  Photonic True-Time Delay Beamforming  Radio-Over-Fiber Systems Special Topics in Optical Engineering II (15/1) Yoojin Ban

Introduction • Broadband and low loss capability of photonics • Generation, processing, control and distribution of microwave and millimeter-wave signals • For broadband wireless access networks, sensor networks, radar, satellite communitarians, instrumentation and warfare systems Special Topics in Optical Engineering II (15/1) Yoojin Ban

Optical Generation of Microwave Signals • Low phase noise & frequency-tunable microwave or mm-wave source • Radar, wireless communications, software defined radio, and modern instrumentation. • Optical mixing of two waves Special Topics in Optical Engineering II (15/1) Yoojin Ban

Optical Generation of Microwave Signals A. Optical Injection Locking • Master laser (directly) and two slave laser +2 nd order & -2 nd order side bands • Special Topics in Optical Engineering II (15/1) Yoojin Ban

Optical Generation of Microwave Signals B. Optical Phase Lock Loop • Laser actively locked to another laser Special Topics in Optical Engineering II (15/1) Yoojin Ban

Optical Generation of Microwave Signals C. Optical Injection Phase Locking • Combination of optical injection locking & optical phase locking to improve signal quality Special Topics in Optical Engineering II (15/1) Yoojin Ban

Optical Generation of Microwave Signals D. Microwave Generation Based on External Modulation • Intensity modulator-based approach • Suppressing the optical carrier after modulation • Using Mach-Zehnder modulator & wavelength-fixed optical filter Special Topics in Optical Engineering II (15/1) Yoojin Ban

Optical Generation of Microwave Signals D. Microwave Generation Based on External Modulation • Phase-modulator-based approach • No bias-drifting problem (no DC bias) Special Topics in Optical Engineering II (15/1) Yoojin Ban

Optical Generation of Microwave Signals E. Microwave Generation Using a Dual-Wavelength Laser • Dual-wavelength single-longitudinal-mode fiber ring laser • Coherent with same gain medium Special Topics in Optical Engineering II (15/1) Yoojin Ban

All-Optical Microwave Signal Processing • Optical fibers as delay lines for signal processing • Generic photonic microwave delay-line filter with finite impulse response • Incoherent regime • Positive coefficient tabs: problem Special Topics in Optical Engineering II (15/1) Yoojin Ban

All-Optical Microwave Signal Processing A. Photonic Microwave Delay-Line Filters With Negative Coefficient • Photonic microwave delay-line filter with a negative coefficient using differential detection Special Topics in Optical Engineering II (15/1) Yoojin Ban

All-Optical Microwave Signal Processing A. Photonic Microwave Delay-Line Filters With Negative Coefficient • Photonic microwave delay-line filter with a negative coefficient based on cross-gain modulation in an SOA Special Topics in Optical Engineering II (15/1) Yoojin Ban

All-Optical Microwave Signal Processing A. Photonic Microwave Delay-Line Filters With Negative Coefficient • Photonic microwave delay-line filter with a negative coefficient based on injection-locking of an FP laser diode Special Topics in Optical Engineering II (15/1) Yoojin Ban

All-Optical Microwave Signal Processing A. Photonic Microwave Delay-Line Filters With Negative Coefficient • Photonic microwave delay-line filter with a negative coefficient based on carrier depletion effect in a DFB laser diode Special Topics in Optical Engineering II (15/1) Yoojin Ban

All-Optical Microwave Signal Processing A. Photonic Microwave Delay-Line Filters With Negative Coefficient • Photonic microwave delay-line filter with a negative coefficient based on phase inversion using complementarily biased intensity modulators Special Topics in Optical Engineering II (15/1) Yoojin Ban

All-Optical Microwave Signal Processing A. Photonic Microwave Delay-Line Filters With Negative Coefficient • RF phase inversion based on PM-IM conversion through opposite dispersion • Photonic microwave delay-line filter with a negative coefficient based on PM-IM conversion in two LCFBGs with opposite dispersion Special Topics in Optical Engineering II (15/1) Yoojin Ban

All-Optical Microwave Signal Processing A. Photonic Microwave Delay-Line Filters With Complex Coefficient • Two-tap photonic microwave filter with a complex coefficient uisng three optical attenuators and two microwave couplers Special Topics in Optical Engineering II (15/1) Yoojin Ban

Photonic True-Time Delay Beamforming • Beam steering using phase shifter or delay line Special Topics in Optical Engineering II (15/1) Yoojin Ban

Photonic True-Time Delay Beamforming • Photonic true-time delay beamforming system based on a FBG prism Special Topics in Optical Engineering II (15/1) Yoojin Ban

Photonic True-Time Delay Beamforming • Photonic true-time delay beamforming system using a chirped Bragg grating Special Topics in Optical Engineering II (15/1) Yoojin Ban

Radio-Over-Fiber Systems Special Topics in Optical Engineering II (15/1) Yoojin Ban