Optical pulse generation using Fourier synthesis is attractive for a number of applications, including photonic A/D conversion, electro-optic sampling, and time-resolved spectroscopy, because the bandwidth, shape, and repetition rate of the pulse can be easily controlled.

optical pulse brillouin selective sideband↗

NASA NTRS1999

Frequency-Converted, Polarization Insensitive, and Dispersion Immune Photonic Link with Brillouin

We demonstrate a novel photonic link that simultaneously achieves frequency conversion, optical amplification, polarization sensitivity elimination, and fiber dispersion effect minimization.

OEO Photonics Oscillator optoelectronic oscillator↗

NASA NTRS1999

New Schemes for Improved Opto-Electronic Oscillator

The opto-Electronic Oscillator (OEO)has already demonstrated superior spectral purity as a for microwave and millimeter wave reference signals.

OEO↗

NASA NTRS1999

Realization of Ultra-High Spectal Purity with the Opto-Electronic Oscillator

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Oscillator clock spectral purity optoelectronics↗

NASA NTRS1998

Monolithically Integrated InGaAsP/InP Laser/Modulator Using Identical Layer Approach for Opto-Electronic Oscillator

In this paper, we will present the design and fabrication of an integrated semiconductor laser/modulator using the identical active layer approach on InGaAsP/InP material.

Laser Modulator Mode-locked lasers microwave gener↗

NASA NTRS1997

Brillouin Amplification--A powerful New Scheme for Microwave Photonic Communications

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narrow bandwidth emission noise analog photonic sy↗

NASA NTRS1997

Brillouin Amplification--A Powerful New Scheme for Microwave Photonic Communications

We introduce the Brillouin selective sideband amplification technique and demonstrate many important applications of this technique in photonic microwave systems, including efficient phase modulation to amplitude modulation conversion, photonic frequency multiplication, photonic signal mixing with gain, and frequency multiplied signal up conversion.

systems Stimulated Brillouin Scattering (SBS) side↗

NASA NTRS1997

Brillouin Opto-Electronic Oscillator

We demonstrate an all optical Opto-Electronic Oscillator in which the Brillouin selective sideband amplification technique is used to provide a sufficient gain for the oscillator to start and sustain an electro-optic oscillation.

OEO electro-optic oscillation↗

NASA NTRS1997

Brillouin Selective Sideband Amplification of Microwave Photonic Signals

We introduce a powerful Brillouin selective sideband amplification technique and demonstrate its application for achieving gain in photonix signal up- and down- conversions in microwave photonic systems.

sideband amplication↗

NASA NTRS1996

A New Class Of Opto-Electronic Oscillators (OEO) for Microwave Signal Generation and Processing

A new class of oscillators based on photonic devices is presented. These opto-electronic oscillators (OEO's) generate microwave oscillation by converting continuous energy from a light source using a feedback circuit which includes a delay element, and electro-optic switch, and a photodetector. Different configurations of OEO's are presented, each of which may be applied to a particular application requiring ultra-high performance, or low cost and small size.

oscillators↗