The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this work we preset a new technique for measurement of harmonic distortion in microwave photodiodes. Our technique combines optical combs and high-resolution optical filtering to provide a pure optical two-tone excitation of the photo diode. Our technique removes the challenges presented by laser frequency drift and modulator bias control by utilizing a single laser and phase-modulation to synthesize...
We demonstrate fast (~1.4 mus) spectral amplitude and phase characterization of optical arbitrary waveforms generated by line-by-line shaping of a 10 GHz frequency comb. Our technique enables coherent spectral phase measurement after dispersive propagation over long (~50 km) lengths of optical fiber.
Optical combs and high-resolution optical filtering are utilized for high-fidelity measurements of photodiode harmonic distortion. This new technique uses a single laser and phase modulation-alleviating requirements on laser frequency stabilization and modulator bias control.
We demonstrate that imaging through thick random media can be facilitated by intensity correlations with respect to input beam location. Example results suggest that the approach could lead to new imaging opportunities.
Second and third order frequency correlations of speckle intensity patterns are used to characterize scattering media for multiple polarization states.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.