Search query: Demonstration of an optical switch based on SOA-MZI operation at 10 Gbit/s

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abstract: it was demonstrated that an optical switch which was operated at 10 Gbit/s was realized using SOA's in a Mach Zehnder(SOA MZI) configuration, which based on cross phase modulation (XPM) in semiconductor optical amplifier(SOA) and interference struct. An analysis was presented to describe the phase changing in SOA, which caused by optical power injected into S OA. The interference struct supplied a method to transform phase shift into amplitude. At this process, the switch window would been created. Through the simulation the switch was approved.
author_names: Ya lin Guan

Rui-dong Wang
title: Demonstration of an optical switch based on SOA MZI operation at 10 Gbit/s
year: 2013

abstract: In this paper, the semiconductor optical amplifier (SOA) is used with a Mach Zehnder interferometer (MZI) forming an SOA MZI structure which is used to perform the logic gates OR, and NOT. It is simulated at 10 Gbps, 20 Gbps, and 40 Gbps to extract simple design rules. Two binary input data signals are simulated at several bitrate 10 Gbps, 20 Gbps, and 40 Gbps. It is demonstrated that high data rate can be achieved with a specific injection current in SOA. SOAs required low injection current, which leads to a low value on the total power consumption of the gate. In addition, this work includes the study of the effect of the bit rate on the received power, minimum bit error rate (BER) and maximum quality factor (Q factor) The logical output of the gate has an extinction ratio of more than 10 dB with good eye opening. The output of the OR, NOT gates shows error free operation at different bit rate with a clear eye opening. General Terms Optical amplifier, MZI, optical logic gates.
author_names: Azhar Hussein

Ismael Shanan
title: High Data Rate Optical logic OR, and NOT Gates at Optimum Injection Current based on SOA MZI
year: 2017

abstract: We experimentally demonstrate on chip all optical wavelength conversion (AOWC) of four level pulse amplitude modulation (PAM 4) signals by cross gain modulation in an InP monolithically integrated turbo switch circuit based on semiconductor optical amplifiers (SOAs) Full characterization of the photonic integrated circuit (PIC) is given, where sevenfold reduction in effective gain recovery is achieved by the PIC turbo switch compared with a case of single SOA switch. Wavelength conversion of 25 Gbit/s PAM 4 signal in the C band is successfully demonstrated with ~2 dB power penalty at 1 x 10 3 bit error rate. Moreover, the wavelength dependence of the converter is studied. The integrated AOWC device has the advantages of high speed switching operation as well as small footprint, high stability, and low switching power.
author_names: Adnan A E Hajomer

Marco Presi

Nicola Andriolli

Claudio Porzi

Weisheng Hu

Giampiero Contestabile

Xuelin Yang
title: On Chip All Optical Wavelength Conversion of PAM 4 Signals Using an Integrated SOA Based Turbo Switch Circuit
venue: Journal of Lightwave Technology
year: 2019

abstract: in this paper, a Kerr tunable all optical switch is presented which works in photonic crystal platform and implement octagonal shape ring resonator(s) for enhancing the level of nonlinear light amplitude required for the device operation. Two switches are designed and compared; one based on a single (SR) and the other based on a double vertically (DR) aligned ring resonators. Silicon (Si) nanocrystal is used as the driving material for the nonlinear parts. Since the transmission spectra of the DR switch has a higher Q factor rather than SR and also since the optical power reads more nonlinear rods within the DR, thus the optical power required is much lower (at least 10 folds) than the SR switch. The required time for DR switch to change its state from on to off is computed to be less than 10ps, at l0=1552nm. The minimum power required to turn DR switch state on/off is less than 6mW/mm. Performance of the switch is simulated by means of finite difference time domain (FDTD) method, which confirmed the ultra compact sized for the structure working with an ultrafast speed.
author_names: Alireza Tavousi

Mehdi Saffari

Mohammad Ali Mansouri-Birjandi
title: Proposal for a Kerr Tunable All Optical Switch Based on Photonic Crystal Ring Resonators
year: 2018

abstract: At the dawning of the exaflop era, High Performance Computers are foreseen to exploit integrated all optical elements, to overcome the speed limitations imposed by electronic counterparts. Drawing from the well known Memory Wall limitation, imposing a performance gap between processor and memory speeds, research has focused on developing ultra fast latching devices and all optical memory elements capable of delivering buffering and switching functionalities at unprecedented bit rates. Following the master slave configuration of electronic Flip Flops, coupled SOA MZI based switches have been theoretically investigated to exceed 40 Gb/s operation, provided a short coupling waveguide. However, this flip flop architecture has been only hybridly integrated with silica on silicon integration technology exhibiting a total footprint of 45x12 mm2 and intra Flip Flop coupling waveguide of 2.5cm, limited at 5 Gb/s operation. Monolithic integration offers the possibility to fabricate multiple active and passive photonic components on a single chip at a close proximity towards, bearing promises for fast all optical memories. Here, we present for the first time a monolithically integrated all optical SR Flip Flop with coupled master slave SOA MZI switches. The photonic chip is integrated on a 6x2 mm2 die as a part of a multi project wafer run using library based components of a generic InP platform, fiber pigtailed and fully packaged on a temperature controlled ceramic submount module with electrical contacts. The intra Flip Flop coupling waveguide is 5 mm long, reducing the total footprint by two orders of magnitude. Successful flip flop functionality is evaluated at 10 Gb/s with clear open eye diagram, achieving error free operation with a power penalty of 4dB.
author_names: Stelios Pitris

Christos Vagionas

George T Kanellos

Rifat Kisacik

Tolga Tekin

Ronald Broeke

Nikos Pleros
title: All optical SR flip flop based on SOA MZI switches monolithically integrated on a generic InP platform
venue: SPIE OPTO
year: 2016

abstract: We report on the first timescale based entirely on optical technology. Existing timescales, including those incorporating optical frequency standards, rely exclusively on microwave local oscillators owing to the lack of an optical oscillator with the required frequency predictability and stability for reliable steering. We combine a cryogenic silicon cavity exhibiting improved long term stability and an accurate {87}Sr lattice clock to form a timescale that outperforms them all. Our timescale accumulates an estimated time error of only 48+ 94 ps over 34 days of operation. Our analysis indicates that this timescale is capable of reaching a stability below 1x10^ 17} after a few months of averaging, making timekeeping at the 10^ 18} level a realistic prospect.
author_names: William R Milner

John M Robinson

Colin J Kennedy

Tobias Bothwell

Dhruv Kedar

Dan G Matei

Thomas Legero

Uwe Sterr

Fritz Riehle

Holly Leopardi

Tara M Fortier

Jeff A Sherman

Judah Levine

Jian Yao

Jun Ye

Eric Oelker
title: Demonstration of a Timescale Based on a Stable Optical Carrier.
venue: Physical review letters
year: 2019

abstract: We present a new forwarding gate scheme using a single SOA MZI. We show a bi stable behavior with a 13.6 dB extinction ratio and rise and fall times below 30ps. Error free operation is achieved at 40 Gb/s.
author_names: Houssem Brahmi

Marios Bougioukos

Mourad Menif

Alexandros Maziotis

Chronis Stamatiadis

Ch Kouloumentas

Dimitrios Apostolopoulos

Hercules Avramopoulos

Didier Erasme
title: Experimental demonstration of an all optical packet forwarding gate based on a single SOA MZI at 40 Gb/s
venue: 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference
year: 2011

abstract: We investigated the feasibility of using an optical divider circuit with a semiconductor optical amplifier Mach Zehnder interferometer (SOA MZI) based exclusive or (XOR) gate for an all optical forward error detection and correction scheme with a cyclic code. We employed a conventional cyclic code scheme: the same divider circuit acts as both encoder and decoder with a given generator polynomial. The divider circuit consists of cascaded XOR circuits and feedback lines. Therefore, the performance of the XOR circuit is one of the key factors for realizing an all optical scheme. We numerically investigated the operation performance of the SOA MZI based all optical XOR gate. Dynamic operation was simulated using rate equations via the transfer matrix method. The XOR function was also investigated experimentally. The eye diagram obtained from the simulation at a bit rate of 10 Gb/s showed good qualitative agreement with experimental results. Additionally, we confirmed that the optimal condition for a high quality factor (Q factor) is obtained with equal power for each signal. Next, we demonstrated all optical divider processing with the SOA MZI based XOR circuit and a feedback line that forms the generator polynomial x 1. The preliminary results for division operation could be verified.
author_names: Yohei Aikawa

Satoshi Shimizu

Hiroyuki Uenohara
title: Demonstration of All Optical Divider Circuit Using SOA MZI Type xor Gate and Feedback Loop for Forward Error Detection
venue: Journal of Lightwave Technology
year: 2011

abstract: On chip all optical wavelength conversion of 56 Gbit/s non return to zero signals in an integrated SOA based turbo switch is demonstrated. A power penalty of 2.6 dB (5 dB) at BER of 10 6 is achieved for down (up conversion.
author_names: Adnan A E Hajomer

Francesca Bontempi

Nicola Andriolli

Claudio Porzi

W Hu

X Yang

Giampiero Contcstabile
title: 56 Gb/s All Optical Wavelength Conversion based on a Photonic Integrated Turbo Switch
venue: 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC)
year: 2019

abstract: In this paper, we demonstrated an optical D type flip flop based on the electro optic switching effect of silicon microring resonator. The operation of the flip flop has been verified by simulation using a clock signal of 10 Gbps and data signal of 1 Gbps. The results of the proposed flip flop have been presented by the timing diagrams.
author_names: Law Foo Kui

M Rakib Uddin
title: Demonstration of digital optical D flip flop based on photonic micro ring resonator
venue: 2018 20th International Conference on Advanced Communication Technology (ICACT)
year: 2018