Fiber Optic Delay Line Systems
نویسنده
چکیده
The 5017 delay lines system, incorporates a high-speed lasers and photodiodes to provide exceptionally high performance. The unit provides high bandwidth and sensitivity to operate with large delays, plus wide dynamic range for operation over a variety of loss budgets.
منابع مشابه
Rangeability extension of fiber-optic low-coherence measurement based on cascaded multistage fiber delay line.
We demonstrate a simple method to extend the measurable fiber length with a fiber-optic low-coherence technique. This method is based on a cascaded structure of multistage fiber delay line laid in one arm of the low-coherence technique. By choosing different individual stages in the cascaded fiber delay line, the length of the fiber under test can be continuously measured with a different measu...
متن کاملRf and Microwave Fiber Optic Delay Line Techniques
Other delay line techniques include energy transfer methods such as crystal or glass substrates that generate acoustic waves. Here, electrical energy is converted to mechanical energy using a transducer. The energy moves through a medium at a speed related to properties of the material used to construct the delay line. Specific geometries of crystal or glass result in longer delays due to inter...
متن کاملStable closed-loop fiber-optic delay of arbitrary radio-frequency waveforms.
Thermal drifts in long fiber-optic delay lines are compensated based on chromatic dispersion. An arbitrary input radio-frequency (RF) waveform and a control RF sine wave modulate two different tunable laser sources and are coupled into the fiber delay line. The RF phase of the control tone at the output of the delay line is monitored and used to adjust the wavelengths of both sources, so that t...
متن کاملElectrically tunable photonic true-time-delay line.
We present a new application of the acousto-optic superlattice modulation of a fiber Bragg grating based on the dynamic phase and group delay properties of this fiber-optic component. We demonstrate a tunable photonic true-time-delay line based on the group delay change of the light reflected from the grating sidebands. The delay is electrically tuned by adjusting the voltage applied to a piezo...
متن کاملOptical Fiber Delay-Line Signal Processing
Single-mode optical fiber is an attractive delay medium for processing microwave frequency signals due to its extremely low loss ( <0.1 dB/ps) and large available time-bandwidth product (in excess of 105 ). Recent progress in the efficient tapping of light from single-mode fibers has made it possible to construct recirculating and nonrecirculating (tapped) delay-line structures that can perform...
متن کامل