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.
We demonstrate for the first time 32 GBd 64-QAM signal generation without the usage of DACs. The dual-polarization 64-QAM signal is transmitted error-free over 80 km of SSMF with 7.8 pJ/bit record low energy consumption.
Fiber optical gyroscope (FOG) is a kind of angle velocity sensor developed in recent 30 years, with characteristics of small volume, solid structure, fast startup and so on. FOG is an important component for high-precision navigation and control of autonomous robots. Shupe error, a kind of bias error in FOG over temperature varying environments, still exists even with strict quadrupolar winding pattern,...
This paper introduces a hybrid optical structure of interferometric fiber-optic gyroscope (IFOG). The IFOG is characterized by using single-mode optical fiber coupler and low-polarized light source. Through the theoretical analysis on the specialty of polarization, it makes the conclusion that the hybrid optical structure IFOG has a correspondingly lower phasic error. The testing results confirm that...
This article describes a novel design of the interferometric fiber-optic gyroscope (IFOG) program, that is, a structure of hybrid optical IFOG. It is characterized by using low-polarized light source and single-mode optical fiber coupler in optical head. This optical structure not only can reduce the effect of polarization crosstalk, but also simplifies the assembly process and improves production...
We proposed a new technique for identifying fibers in PONs using polarization-modulation caused by a transverse force. We demonstrate our method using conventional and bend-insensitive fibers in a branched region below optical splitters.
The polarization beat length distribution along a single-mode optical fiber is measured with a Brillouin optical correlation-domain reflectometry (BOCDR) with such unique features as one-end access, random access to measuring positions, high spatial resolution, and high measurement speed.
Optical Coherence Tomography (OCT) is a well known technique for creating non-invasive, high resolution images of biological microstructure. OCT has matured into animportant imaging modality since its invention in 1991. The popularity of the method lies in the numerous advantages that it offers high detection sensitivity allowing fast imaging speed, andhigh spatial resolution. In this paper we propose...
In this work we investigate the effects of multiple access interference (MAI) and polarization mode dispersion (PMD) in optical code division multiplexing (OCDM) lightpaths. These paths are determined by the data encoding with non-coherent optical orthogonal codes (OOC), using a sequence inversion keying (SIK) optical correlator system. Our results show the impact of MAI effects and PMD constraint...
We designed and built a novel all-optical re-timing, re-amplifying, and re-shaping (3R) regeneration system based on terahertz optical asymmetric demultiplexers (TOADs) developed in our laboratory. The system is capable of parallel processing multiple wavelengths, a feature which will significantly improve the scalability of current wavelength division multiplexing (WDM) networks. Performance against...
We report a polarization-independent 80 Gb/s optical demultiplexer based on cross-phase modulation in 2 meters of bismuth-oxide fiber. We show error- and penalty-free performance even when the polarization state is randomly scrambled.
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.