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.
Studies in somatic cells have shown that glucocorticoids such as dexamethasone (DEX) may trigger or prevent apoptosis depending on the cell type in culture. Because the dysregulation of apoptosis may lower in vitro embryo production efficiency, we sought to investigate the effects of supplementing IVC medium with DEX (0.1 μg/mL) on embryo morphology, development kinetics, and apoptosis rates of in vitro–produced...
The macrobending loss and mode crosstalk property of a two-mode fiber was investigated. The macrobending loss of the LP11 mode was comparable to that of SMF and the mode conversion during macrobending was negligible.
The novel technique for measuring longitudinal fiber parameters of the Multi-core fiber (MCF) is proposed. The mode field diameter of the fiber link composed of MCF is successfully estimated by the improved OTDR.
We report mode launch characteristics for Two-Mode Optical Fiber (TMF) under offset-launch condition. We confirmed that the power ratio of each mode for TMF under offset-launch condition can be evaluated by using FE-BPM.
We propose an optical multiplier based on phase sensitive amplification. This optical multiplier will be overcome the speed limitation of signal processing. The linearity can be less than 4%FS at the signal power of 1mW.
A multi-core fiber (MCF) cut-off wavelength by using multimode-reference technique is simulated. The cutoff wavelength of two core MCF is successfully estimated by our present technique.
Crosstalk in multi-core fibers with α-index single-mode cores is investigated theoretically. It is clarified that the index parameter α of the core has a great effect on the crosstalk of multi-core fibers.
Vibration sensing is proposed utilizing polarization dependent loss of LPFG and Sagnac loop interferometer. We perform simulation using Jones matrix. The proposed sensing can suppress the vibration effects which occur outside the loop.
We propose a multi-core fiber which accommodates a number of trench index cores with small index difference of inner cladding. We clarify theoretically that our multi-core fiber design can reduce the crosstalk.
A simple technique is proposed for measuring the crosstalk of multi-core fibers using optical time-domain reflectometry (OTDR). The crosstalk of a seven multi-core fiber is successfully estimated with the proposed technique.
We firstly demonstrate real-time optically resolution enhanced ADC system using optical transfer functions of NOLMs at the sampling rate of 9.95 GS/s. The coarse power level of low-resolution ADC is interpolated by this scheme.
We propose a cut-off wavelength definition of a multi-core fiber (MCF) and its simple measurement technique. The cutoff wavelength of MCF is successfully estimated by our proposed technique.
We investigate the performances of optical samplers using NOLM and FWM. The power consumption and temporal resolution can improve by using NOLM with the control pulse in anomalous dispersion region.
We clarify the effect of the inner cladding in trench type MCF on the crosstalk. We investigate the transmission characteristics of multi-core fiber (MCF) with trench-index cores such as crosstalk, mode field diameter and cutoff wavelength.
We investigate theoretically the crosstalk in multi-core fibers with α-index and trench-type α-index cores based on the two core model and compare their α dependence of crosstalk.
We demonstrate a real-time optically resolution-enhanced ADC system using NOLMs. Taking into account the noise distributions of output signals, we successfully enhanced the ADC resolution and improved the signal to noise and distortion ratio from 16 dB to 23 dB.
The lattice parameters of a Nd 1111 Fe-pnictide superconductor, NdFeAsO0.89F0.11, were accurately measured using X-ray diffraction between 20 K and 280 K. A very small change in the lattice parameter could be detected in the superconducting phase. This change can be attributed to a spontaneous strain generated in the superconducting phase by the coupling between a superconducting order parameter and...
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.