A novel optical vector network analyzer (OVNA) based on optical single-sideband (OSSB) modulation and balanced photodetection is proposed and experimentally demonstrated, which can eliminate the measurement error induced by the high-order sidebands in the OSSB signal. According to the analytical model of the conventional OSSB-based OVNA, if the optical carrier in the OSSB signal is fully suppre...

this study was conducted to determine the use of three-dimensional ultrasonography (3du) in ocular imaging of the dog and measuring of its optical axis. 12 healthy mixed-breed dogs including 6 males and 6 females were studied. 3du of the eyes were done using a 5–12 mhz linear trapezoid transducer. 3du of the eyes were evaluated and the normal optical long axis through a line between the cornea ...

Connecting method of optical fibers by V-shaped groove is used in various fields. And in this met,hod, i t is important to estimate distortion of a fiber, because a distortion of the optical fiber influences a connection characteristics. We developed measurement technique of a n optical fiber distortion using Light Intersection Method and optimized incidence angle of the laser beam on a Sample ...

Optical measurement systems were originally developed for industrial applications. Due to their versatility of use and “touchless“ non-invasive method of working they have also been employed for many years in the field of restoration, conservation and preservation of cultural heritage. The capabilities of a variety of optical measuring methods e.g. photogrammetry, laser triangulation and interf...

We introduce a novel light-scattering technique for investigating the dynamics of random media with a broad range of optical densities. By use of the spatial coherence properties of a single-mode optical fiber and the temporal coherence of a broadband source, the measurement volume is isolated at the end of the optical waveguide. Optical mixing between the fluctuating scattered light and the Fr...

We measure the complete electric field of extremely complex ultrafast waveforms using the simple linear-optical, interferometric pulse-measurement technique, MUD TADPOLE. The waveforms were measured with ~40 fs temporal resolution over a temporal range of ~3.5 ns and had time-bandwidth products exceeding 65,000. The approach is general and could allow the measurement of arbitrary optical wavefo...