Filters








911 Hits in 6.7 sec

Wideband continuously tunable integrated delay line based on cascaded Mach-Zehnder

Abi Waqas, Daniele Melati, Andrea Melloni
2018 2018 Photonics in Switching and Computing (PSC)  
We demonstrate that the delay line based on two cascaded Mach-Zehnder interferometer has the consistently larger bandwidth and bandwidth-delay product compared to a single stage.  ...  A novel architecture based on cascaded Mach-Zehnder interferometer and equipped with tunable couplers is proposed for the realization of the tunable integrated optical delay line.  ...  Fig. 4 . 4 Photograph of realized Mach-Zehnder based delay line with two tunable couplers.  ... 
doi:10.1109/ps.2018.8751342 dblp:conf/ps/WaqasMM18 fatcat:2pkw6nnvrzhpbblc3qb7ytm54a

Integrated Microwave Photonics for Wideband Signal Processing

Xiaoke Yi, Suen Chew, Shijie Song, Linh Nguyen, Robert Minasian
2017 Photonics  
New developments in integration-based microwave photonic techniques, that have high potentialities to be used in a variety of sensing applications for enhanced resolution and speed are also presented.  ...  , and cascaded photonic signal processing for analog radio frequency (RF) photonic links.  ...  Optical delay lines can also be realized via adopting a series of Mach Zehnder Interferometer (MZI) or microring resonator-based optical switches, thus generating a tunable time delay controlled by the  ... 
doi:10.3390/photonics4040046 fatcat:3wax6z5a2jclxm7vnfybzg7oxe

Tunable Multiband Microwave Photonic Filters

Mable Fok, Jia Ge
2017 Photonics  
to promising developments of tunable microwave photonic multiband filters.  ...  Single passband microwave photonic filters can be implemented using various techniques, including chip-based stimulated Brillouin scattering [10, 11] , optical comb based filter [12] [13] [14] , and programmable  ...  BBS: broadband optical source; MZM: Mach-Zehnder modulator; PD: photodiode; PC(1,2): polarization controller; ODL: variable optical delay line.  ... 
doi:10.3390/photonics4040045 fatcat:nihctid6ujdbvooamcnhrsa4qa

Widely tunable single-bandpass microwave photonic filter employing a non-sliced broadband optical source

Xiaoxiao Xue, Xiaoping Zheng, Hanyi Zhang, Bingkun Zhou
2011 Optics Express  
We demonstrate a novel microwave photonic filter based on a non-coherent broadband optical source and the variable optical carrier time shift (VOCTS) method.  ...  Single bandpass is also achieved due to the continuous-time sinusoidal impulse response. Detailed theoretical analyses are presented and agree with the experiments quite well.  ...  The bandpass center was tuned from 2 GHz to 18 GHz with a 2-GHz step, by changing the time delay in the lower arm of the Mache-Zehnder Acknowledgments This work is supported in part by the 973 Project  ... 
doi:10.1364/oe.19.018423 pmid:21935210 fatcat:qx7o7v3plbex7bq6psodhlk75e

Error-free 1,001-hop Cascaded Operation of an Optical-label Switching Router with Optical 3R Regeneration

Zhong Pan, Zuqing Zhu, Masaki Funabashi, Haijun Yang, S. J. B. Yoo
2006 2006 European Conference on Optical Communications  
based Mach-Zehnder interferometer wavelength converter; FWC: fixed-wavelength converter; OBPF: optical bandpass filter. . 2.  ...  (a) parallel bit-error rate tester (Agilent 81250); SCM-TX: sub-carrier multiplexing transmitter; LE: label extractor; LRX: label receiver; ODL: optical delay line; VODL: variable optical delay line  ... 
doi:10.1109/ecoc.2006.4801124 fatcat:flflja3qnngdbg45fxg6uckunu

Photonics-based multi-function analog signal processor based on a polarization division multiplexing Mach–Zehnder modulator

Yamei Zhang, Shilong Pan
2017 Optics Letters  
A photonics-based multi-function analog signal processor based on an optical polarization division multiplexing dualparallel Mach-Zehnder modulator is proposed and demonstrated, which can implement simultaneously  ...  photonic microwave phase shifting, upconversion/downconversion and filtering with excellent tunability.  ...  In [8, 9] , photonic-based phase-shifted and frequency-mixed microwave signal processors are reported based on a dual-drive Mach-Zehnder modulator (DMZM).  ... 
doi:10.1364/ol.42.005034 pmid:29216173 fatcat:fv44qmsabne5fha65r3ezvln7a

A high-speed tunable beam splitter for feed-forward photonic quantum information processing

Xiao-song Ma, Stefan Zotter, Nuray Tetik, Angie Qarry, Thomas Jennewein, Anton Zeilinger
2011 Optics Express  
Two electro-optical modulators act in a Mach-Zehnder interferometer as high-speed phase shifters and rapidly tune its splitting ratio.  ...  We demonstrate tunable feed-forward operations of a single-qubit gate of path-encoded qubits and a two-qubit gate via measurement-induced interaction between two photons.  ...  In classical photonics, although fast optical modulators based on electro-optical materials embedded in Mach-Zehnder interferometers (MZI) are already at an advanced stage [21] , the polarization preference  ... 
doi:10.1364/oe.19.022723 pmid:22109153 fatcat:dp4i7vpw4jajbau6iqcsc46dou

Single-chip optical beam forming network in LPCVD waveguide technology based on optical ring resonators

L. Zhuang, C. G. H. Roeloffzen, R. G. Heideman, A. Borreman, A. Meijerink, W. van Etten
2006 2006 International Topical Meeting on Microwave Photonics  
Optical ring resonators (ORRs) can be used as continuously tunable delay elements in a beam forming network for a phased-array antenna system.  ...  Index Terms -Delay filters, LPCVD waveguide technology, microwave photonics, optical beam forming, optical ring resonators, optical signal processing.  ...  ACKNOWLEDGEMENTS This work was part of the Broadband Photonic Beamformer project and the IO-BFN project, both supported by the Dutch Ministry of Economic Affairs, SenterNovem project number IS052081 and  ... 
doi:10.1109/mwp.2006.346543 fatcat:fthlkgb7jzfjnozlnstwmebbsi

Advanced RF and microwave functions based on an integrated optical frequency comb source

Xingyuan Xu, Jiayang Wu, Thach G. Nguyen, Mehrdad Shoeiby, Sai T. Chu, Brent E. Little, Roberto Morandotti, Arnan Mitchell, David J. Moss
2018 Optics Express  
We achieve extremely high performance for an optical true time delay aimed at tunable phased array antenna applications, as well as reconfigurable microwave photonic filters.  ...  We show that our true time delay would yield a phased array antenna with features that include high angular resolution and a wide range of beam steering angles, while the microwave photonic filters feature  ...  Fig. 1 . 1 Schematic diagram of the RF true time delay lines based on an integrated optical comb source. MRR: micro-ring resonator. MZM: Mach-Zehnder modulator.  ... 
doi:10.1364/oe.26.002569 pmid:29401795 fatcat:tbfofnbstnfsbpsorbnhayhjae

Programmable optical processor chips: toward photonic RF filters with DSP-level flexibility and MHz-band selectivity

Yiwei Xie, Zihan Geng, Leimeng Zhuang, Maurizio Burla, Caterina Taddei, Marcel Hoekman, Arne Leinse, Chris G.H. Roeloffzen, Klaus-J. Boller, Arthur J. Lowery
2017 Nanophotonics  
This is a key technology for photonic-assisted RF front ends that opens a path to overcoming the bandwidth limitation of current digital electronics.  ...  As a promising application, such processors enables photonic implementations of reconfigurable radio frequency (RF) filters with wide design flexibility, large bandwidth, and high-frequency selectivity  ...  Essentials of optical signal processors Tunable delay lines Tunable delay lines play a key role in the implementation of optical signal processors.  ... 
doi:10.1515/nanoph-2017-0077 fatcat:aixruyxo2jfijathxabs3tgpcm

Versatile silicon microwave photonic spectral shaper

Xin Guo, Yang Liu, Tangman Yin, Blair Morrison, Mattia Pagani, Okky Daulay, Wim Bogaerts, Benjamin J. Eggleton, Alvaro Casas-Bedoya, David Marpaung
2021 APL Photonics  
Instead, a tunable optical delay line is required. Finally, RF metrics are important aspects of microwave photonics.  ...  Present implementation with the tunable phase shifter and MZI-based tunable coupler leads to limited bandwidth and interrelated phase and amplitude tuning.  ... 
doi:10.1063/5.0033516 fatcat:k2ebrvkhpbf6znutcqo4u7rqca

Novel Widely Tunable Monolithically Integrated Laser Source

Sylwester Latkowski, Andreas Hansel, Nandini Bhattacharya, Tjibbe de Vries, Luc Augustin, Kevin Williams, Meint Smit, Erwin Bente
2015 IEEE Photonics Journal  
The laser has been fabricated in a multi-project wafer run on an indium phosphide-based generic photonic foundry platform and demonstrates the potential of these technology platforms.  ...  The tuning is achieved by three intracavity Mach-Zehnder interferometers, realized in passive waveguides and using voltage-controlled electro-optic phase modulators requiring only four control voltages  ...  Two generations of AMZI based tunable lasers have been designed and realized in Multi-Project Wafer (MPW) runs in the indium phosphide (InP) based generic photonic integration technology platform developed  ... 
doi:10.1109/jphot.2015.2493722 fatcat:kitumgez5zaolbccufv2goxh5e

Theoretical analysis and modeling of a photonic integrated circuit for frequency 8-tupled and 24-tupled millimeter wave signal generation

Mehedi Hasan, Rabiaa Guemri, Ramón Maldonado-Basilio, Frédéric Lucarz, Jean-Louis de Bougrenet de la Tocnaye, Trevor Hall
2014 Optics Letters  
ID XXXXX); published Month X, XXXX A photonic circuit design for implementing frequency 8-tupling and 24-tupling is proposed.  ...  Theoretical analysis and modeling of a photonic integrated circuit for frequency 8-tupled and 24-tupled millimeter wave signal generation.  ...  Similar designs based on nested MZMs [7] , dual-parallel MZMs in combination with notch filters [8] , cascaded MZMs with a tunable optical delay line between the modulators [9] , or fourparallel phase  ... 
doi:10.1364/ol.39.006950 pmid:25503038 fatcat:nc3qlp2hbzhytnjmwl263ikgwm

New opportunities for integrated microwave photonics [article]

David Marpaung, Jianping Yao, Jose Capmany
2018 arXiv   pre-print
chip and has ushered the creation of a complex signal processor with multi-functionality and reconfigurability similar to their electronic counterparts.  ...  Recent advances in photonic integration have propelled microwave photonic technologies to new heights.  ...  Microresonator-based frequency combs have emerged as a powerful tool as the multi-wavelength source for tappeddelay lines signal processing [70, 71] .  ... 
arXiv:1810.02585v1 fatcat:neuqiiu4mvechkcskdhajvbvxy

Photonics-Based Microwave Image-Reject Mixer

2018 Photonics  
Developmental trends of the photonics-based microwave IRM are also discussed.  ...  Applications of photonics-based microwave IRM in electronic warfare, radar systems and satellite payloads are described.  ...  multiplexing Mach-Zehnder modulator [24] .  ... 
doi:10.3390/photonics5020006 fatcat:j4unkt63v5b27ozhtu3lmhfynm
« Previous Showing results 1 — 15 out of 911 results