Paper Review Introduction Optical Generation of Microwave - - PowerPoint PPT Presentation

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May 09, 2023 173 likes •397 views

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)

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Special Topics in Optical Engineering II (15/1) Yoojin Ban

Paper Review

Introduction
Optical Generation of Microwave Signals
All-Optical Microwave Signal Processing
Photonic True-Time Delay Beamforming
Radio-Over-Fiber Systems

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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

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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

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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
+2nd order & -2nd order side bands

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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

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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

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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

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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)

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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

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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

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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

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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

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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

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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

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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

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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

pposite dispersion
Photonic microwave delay-line

filter with a negative coefficient based on PM-IM conversion in two LCFBGs with opposite dispersion

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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

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Special Topics in Optical Engineering II (15/1) Yoojin Ban

Photonic True-Time Delay Beamforming

Beam steering using phase shifter or delay line

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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

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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

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