NOISELESS AMPLIFICATION OF ANALOG SIGNALS IN DISTORTION-FREE RF-PHOTONICS LINK
Abstract
NOISELESS AMPLIFICATION OF ANALOG SIGNALS IN DISTORTION-FREE RF-PHOTONICS LINKStatement of WorkFunds are provided to devise, fabricate, and test at UCSD and SSC-PAC two new photonic components based on the notions of phase sensitive optical modulation, in particular 4 and 6 wave mixing. The six wave component can serve as an analog RF signal over optical fiber signal transmission link for ultra wideband signals. The 4 wave mixing component will demonstrate enhanced detection capability for fast, non-repeated pulses via analog processing. ApproachThe 6 wave work aims to produce an analog over fiber link that preserves the noise characteristics of the input signals, rather than amplify them, by limiting the injection of noise during the amplification in the signal amplitude quadrature and instead squeezing it into the phase domain, then eliminating that excess in the final photo-detection phase via interferometric techniques. Doing this requires extremely careful phase control over more than 2THz and use of 2 pump lasers. The 4 wave mixing work will seek to demonstrate that optical analog manipulation of pulsed signals can allow coincident spectral energy in different channels to be summed into a single one, increasing the detectability of that pulse.ObjectiveThe objective is to demonstrate the concept for 2 improved optical analog processing components recently invented as a result of ONR funded basic research. The optical link is to be tested in conjunction with a more conventional link at SSC in an ONR FY15 one shot.Overall Merit and ONR Mission/RelevanceThe optical link may be critical to utilize in any antenna remoting effort, especially for frequencies above 20 GHz when electrical cable losses are too extreme and space for a receiver at the antenna feed is impossible to plan. The 4 wave mixing idea has the possibility of increasing the detection possibility of single pulse end-state seekers, a strong interest of the platform protection community. The team is highly creative and solid.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 03, 2017
- Source ID
- N000141512743
Entities
People
- Stojan Radic
Organizations
- Office of Naval Research
- United States Navy
- University of California, San Diego