Sorger1, 1department of electrical and computer engineering, george washington university 800 22nd st. Maldonado department of electrical engineering the uni y ersity of texas at arlington arlington, texas 1 3. Publishers pdf, also known as version of record includes final page, issue and volume numbers. Schaevitz,2 emel tasyurek,1 yiwen rong,3 theodore i. Applied voltage was obtained both by converting the electric field based on device model and fitting the calculated ea spectra with the first principle calculation and gaussian broadening. Waveguide based electroabsorption modulator performance. The modulator parameter extractor is a software tool that enables parameter fitting of measurements from mqw electroabsorption modulators 1 with one or two dimensional functions, using a polynomial form. Balanced electroabsorption modulator for highlinearity. Electroabsorption modulators eam have proved to be very attractive both as optical sources monolithically integrated nrz transmitters and rz pulse generators as well as for very fast signal processing demultiplexing, regeneration, wavelength conversion. Electroabsorption modulator performance predicted from. We have previously reported on the high modulation bandwidth of 25 ghz mea.
Once files have been uploaded to our system, change the order of your pdf documents. A novel broadband electroabsorption modulator based on bandfilling in n ingaas. The main aspect to consider when designing and engineering an effec tive electroabsorption modulator eam is, in fact, the variation of the complex refractive. Pdf electroabsorption modulator with an asymmetric coupled. Electroabsorption modulator performance predicted from bandedge absorption spectra of bulk, quantumwell, and quantumwellintermixed ingaasp structures gordon b. Click, drag, and drop to reorder files or press delete to remove any content you dont want. We report a novel hybrid integrated optic device consisting of algainasinp electroabsorption modulators and a fourarm silicaonsilicon planar lightwave circuit optical interferometer. Monolithic integration of an electroabsorption modulator into a gaasbased duocavity vcsel for resonancefree modulation j. We investigate the feasibility of an electroabsorption modulator integrated laser as a digital coherent transmitter. Electroabsorption modulator ii device configuration duration. Balanced electroabsorption modulator for highlinearity, lownoise microwave analog optical link f. Waveguidebased electroabsorption modulator performance rubab amin1, jacob b.
Gesige asymmetric fabryperot quantum well electroabsorption modulators elizabeth h. Circuit parameters extracted from measured s 11 values. Modeling of machzehnder and electroabsorption modulator pulse generators and extraction of the chirp factor michael j. Results of single channel and dwdm fiber transmission. Javier romerovivas, aidan meehan and lukasz krzczanowicz optical communications research group, dept. Electroabsorption modulator ii device configuration.
An electroabsorption modulator eam is a semiconductor device which can be used for modulating the intensity of a laser beam via an electric voltage. Integration of a travelingwave electroabsorption modulator with a widely tunable sgdbr laser matthew m. Simultaneous suppression of imd2 and imd3 in analog. The laser and eam sections are used as phase and amplitude modulators respectively. Osa a hybrid electroabsorption modulator device for.
N2 we present a complete largesignal dynamic model of electroabsorption modulator integrated eami distributed feedback dfb lasers using the timedependent transfer matrix method. A graphical method for simultaneously considering chirp, insertionloss. Electroabsorptionmodulated dfblaser ready to attack 10 gbits market introduction electroabsorption modulator integrated with a dfblaser diode eailm is now a wellestablished technology for 2. Electroabsorption modulators used for alloptical signal processing and labelling. Without the complexity of linbo3 external modulators, the alcatel 1915 lmm is dedicated to stm64oc192 bit rate with reduced size and reduced cost. Blumenthal, fellow, ieee abstract direct 16010gbs demultiplexing using a singlestage electrically gated electroabsorption modulator is reported for the first time. A simple device model attributes the threshold voltage of zno ea modulators to the charge screening effects caused by the free electrons in the zno active layer. Such devices based on zinc blende iii v compounds have found widespread application in optical communications for data transmission, photonic switching, and optical interconnects. Pdf electroabsorption dynamics in an ingaaspingaasp. Oktyabrsky1 1co lleg eof nanos c asi nand e ngeer,u ny ab yba y tel5184378609, email. The proposed graphenephcw modulator may have potentials in. Analysis of multiquantum well electroabsorption modulators.
In both types of devices, the absorption edge at room temperature is dominated by excitonic effects and can be strongly modi. Singlestage electrically gated electroabsorption modulator hsufeng chou, yijen chiu, wei wang, john e. The demonstrated device has a compact active region of 1. The modulator has a broad operating wavelength range of 35 nm and a 3 db. An equivalent rf circuit model for electroabsorption modulators eams is proposed and verified. Electroabsorptionmodulated dfb laser ready to attack.
Highspeed travelingwave electroabsorption modulators bowers. High speed electroabsorption modulators in generic integration. Electroabsorption modulators based on bulk gan films and. Its principle of operation is based on the franzkeldysh effect, i. Modulator parameter extractor generates a polynomial matrix file containing the. Raring2, member, ieee, anna taukepedretti1, student member, ieee, and larry a. Alcatel 1915 lmm single channel 50 psnm application 10. The modulation voltage is applied to the modulator section while the dfb laser operates cw. This device allows 10 gbits data transmission with an extinction. They are promising devices for external signal modulation in highbandwidth optical com. The technique is used to characterize an ingaasp multiple quantumwell electroabsorption modulator.
Index terms chirp, electroabsorption, modulation, optical in. Transparent conductive oxides tcos have emerged as materials for nanoscale. Electroabsorption dynamics in an ingaaspingaasp superlattice modulator. Application of electroabsorption modulators for highspeed. Travelingwave electroabsorption modulators by shengzhong zhang the transmission bit rates in backbone telecommunication optical fibers are increasing rapidly, motivated by the explosive growth of internet traffic. Electroabsorption modulator integrated light sources for future. How to merge pdfs and combine pdf files adobe acrobat dc. Multiquantum well mqw electroabsorption modulators eams are attractive for applications requiring signal modulation at high speed and with. For achieving a high extinction ratio, one usually exploits the quantumconfined stark effect in. Pmgi bridges are formed on both ends of the optical waveguide to connect grounds from di. Miller1 1department of electrical engineering, stanford university, stanford, ca 94305, usa 2current.
Coldren b a apogee photonics, 6580 snow drift road, suit 100, allentown, pa. Electroabsorption modulator laser for costeffective 40. Ultraviolet electroabsorption modulators based on bulk gan. We discuss the challenges involved and demonstrate the combined phase and amplitude modulation on a commercial device. Doublelayer graphene on photonic crystal waveguide. Figure 1a shows a finished device illustrating the proposed integration. With this model, it is possible to analyze dynamic characteristics depending on optical feedback and spatial hole burning. The device is fabricated on a standard silicononinsulator platform through the integration with a 3. As the channel bit rate distance product increases, external modulation of the laser light.
An optical modulator based on a single strongly coupled. Rp photonics encyclopedia electroabsorption modulators. Leijtens 1 1 cobra research institute, eindhoven university of technology, p. Ultracompact and broadband electroabsorption modulator. We also fabricated the graphene modulator on silicon platform, and the device achieved a modulation bandwidth at 12 ghz. Most electroabsorption modulators are made in the form of a waveguide with electrodes for applying an electric field in a direction perpendicular to the modulated light beam. From the measurements we derive the smallsignal parameter and the timedependent chirp for different operation conditions. High speed electroabsorption modulator in the generic.
Dipartimento di elettronica, politecnico di torino, corso duca degli abruzzi 24, i10129 torino, italy. Recent progress in electroabsorption modulator integrated distributed feedback eadfb lasers for highspeed data communications is. The eam is a pin waveguide modulator fabricated on siinp. Alloptical wavelength conversion and signal regeneration. Nanophotonic lithium niobate electrooptic modulators.
Even though this modulation format is heavily in use for. Click add files and select the files you want to include in your pdf. By varying the index of vanadium dioxide, the modulator can route plasmonic waves through the lowloss dielectric insulator layer during the on state and highloss vo 2. You can print just what they need and place it in their binder alongside the current music selections, or they can prop up a mobile device and view transitions on a whim. Introduction electroabsorption modulators eams are attractive for applications requiringhigh speed modulation, low drive voltage, high extinction ratio and integratibility with lasers. Pdf this paper reports the performance analysis of multiwavelength converter based on. To reduce the modemismatch between fiber and waveguide, we employ a large optical cavity structure. Hybrid siliconconductive oxideplasmonic electroabsorption modulator with 2v swing voltage qian gao, erwen li, bokun zhou, and alan x. To achieve ultrahigh bit rate signal beyond existing etdm technology optical time division multiplexing otdm is been used. Coldren1, fellow, ieee 1university of california santa barbara, ece department, santa barbara.
Optically controlled electroabsorption modulators for. Introduction electroabsorption modulators are attractive for applications requiring high speed modulation, low drive voltage, high extinction ratio, and integrability. With the modulator, your accompanists wont need to carry an extra book of transitions to shuffle around between songs. Itobased electroabsorption modulator for photonic neural. High speed electroabsorption modulator in the generic photonic integration platform m. The active eo modulation region consists of a metal. Osa high speed gesi electroabsorption modulator at 1550. Opticallyswitched dualdiode electroabsorption modulator. The expected performances of ideal electroabsorption modulators fabricated from these materials are predicted and compared using the bandedge absorption data. Digital coherent transmitter using electroabsorption. Such an architecture is amenable to scalability to two dimensions, allowing the possibility of creating a multichannel wavelengthconverting crossbar switch.
Once you merge pdfs, you can send them directly to your email or download the file to our computer and view. The balanced electroabsorption modulated link as shown in fig. Electroabsorption modulators are semiconductor electrooptic devices in which a change in absorption coef. A planar violet electroabsorption modulator and modeling. Heterodyne technique for measuring the amplitude and phase. Electronic and computer engineering, university of limerick, limerick, ireland. A novel broadband electroabsorption modulator based on. A terminating impedance circuit, which is thermally decoupled from a substrate, for an electroabsorption modulator, having a modulator capacitance includes a series resistanceemphasized rf delay line exhibiting an impedance distributed over its length, wherein the spatially distributed impedance has at least a predominant resistance per unit length, an inductance per. Wang oregon state university, school of electrical engineering and computer science, corvallis, oregon, united states abstract. Pdf merge combine pdf files free tool to merge pdf online.
Alloptical wavelength conversion and signal regeneration using an electroabsorption modulator sune hojfeldt, svend bischoff, and jesper mork abstract alloptical wavelength conversion and signal regeneration based on crossabsorption modulation in an ingaasp quantum well electroabsorption modulator eam is studied at different bit rates. Concise rf equivalent circuit model for electroabsorption. Pdf we present an electroabsorption modulator based on the enhanced electrooptic effect of an asymmetric coupled triple quantum well actqw to. Pdf performance analysis of electroabsorption modulatorbased. The device is designed for generation of high spectral efficiency optical modulation formats. In this paper, we introduce a novel, waveguide, electroabsorption modulator diode that is monolithically integrated with a surfacenormal illuminated photodetector pd requiring only milliwattlevel optical switching powers. You can merge pdfs or a mix of pdf documents and other files.