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 present a novel compact rectangular-waveguide-type (WR-12) coherent photonic mixer module, featuring a balanced photodetector. The module enables the direct fiber-to-the-antenna connectivity for the upcoming 5G links. Experimental results with respect to the output RF power (e.g., −7.3 dBm at 73 GHz) and the frequency response deviation (±0.5 dB) are presented within the 71–76 GHz...
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.
This paper reports on the development of a packaged coherent photonic mixer (CPX) for coherent Radio-over-Fiber (RoF) systems. The developed integrated CPX performs direct optical-to-RF up-conversion with a 5 dB better conversion efficiency at 60 GHz as compared to a commercially available 110 GHz photodiode. The 3 dB bandwidth and maximum RF output power of the CPX are 65 GHz and +7 dBm, respectively...
A compact E-band (71–76 GHz) conductor-backed coplanar waveguide (CBCPW) to hollow metallic waveguide (WR-12) transition has been designed and fabricated. The fully-planar two-layer transition makes use of a double-slot antenna, which efficiently couples the millimeter-wave (mm-wave) signal from the CBCPW to the WR-12 waveguide. The introduced transition, together with an integrated high-speed balanced...
An integrated 110 GHz coherent photonic mixer (CPX) is designed and fabricated for coherent RoF (CRoF) mobile backhaul links. The CPX simultaneously performs optical WDM channel selection and direct optical-to-RF conversion. Due to its broadband performance, the CPX simultaneously supports future wireless systems operating in the 57–64 GHz, 71–76 GHz, 81–86 GHz bands and even research-type W-band...
We send data from a monolithic 32.5Gbaud QPSK transmitter based on switching of prefixed phases, to a 43GHz-bandwidth integrated receiver. We demonstrate 130Gb/s bit-rate per wavelength, more than twice the rate of previous PIC-to-PIC experiments.
A novel monolithic QPSK-ready transmitter source based on prefixed phase switching by fast EAMs has been realized on InP using a flexible photonic integrating circuit technology. It has been used up to 56Gb/s in DPSK coherent transmission experiments.
A grounded coplanar waveguide (GCPW) to rectangular waveguide (WR) transition is presented for operation in the E-band from 71 to 76 GHz, a worldwide allocated frequency slot for wireless communication. The GCPW-to-WR transition is designated for the E-band radio-over-fibre (RoF) wireless transmitter where it connects the 50 Ω coplanar waveguide (CPW) output of a high-frequency photodiode chip to...
Small form-factor dual-balanced receiver for 40G DQPSK applications with 60% reduced footprint compared to deployed solutions is presented. High dynamic range of 10dB, high overload power, and very sensitive peak detectors (>400mV/30°) for demodulator control are demonstrated in 44.6Gb/s experiment.
A DPSK receiver concept using flipchip hybrid integration of InP photodetectors on SOI boards with optical decoder is presented. Horizontal waveguiding enables low-cost production for high data rates.
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.