LiNbO3 Optical Single-Sideband Modulator

Slides:

Advertisements

Similar presentations

Signal Encoding Techniques

Advertisements

Signal Encoding Techniques (modulation and encoding)

Department of Electronics and CommunicationsEngineeringYANSAHAN UNIVERSITY Department of Electronics and Communications Engineering YANSAHAN UNIVERSITY.

40Gbit/s Coherent Optical Receiver Using a Costas Loop

1 Modulations/demodulations in Transmitters/Receivers Amplitude modulation (AM) Angle modulation – Frequency, phase.

Silicon Optical Modulators

Modulation formats for digital fiber transmission

Microwave Photonics Applications of Stimulated Brillouin Scattering Dr. Avi Zadok, School of Engineering, Bar-Ilan University

Integrated Optic Components  Passive: Requires no input power, like directional couplers, beam splitters, isolators, filters, lenses and prisms  Active:

OEIC LAB National Cheng Kung University 1 Ching-Ting Lee Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University.

EE 230: Optical Fiber Communication Lecture 10 From the movie Warriors of the Net Light Sources and Transmitters.

Simulations of All-Optical Multiple-Input AND- Gate Based on Four Wave Mixing in a Single Semiconductor Optical Amplifier H. Le Minh, Z. Ghassemlooy, Wai.

Principles of analogue modulation

Fiber-Optic Communications

High-speed optical switching based on diffusive conduction in an optical waveguide with surface-normal optical control V. A. Sabnis, H. V. Demir, M. B.

Lightwave Communications Systems Research at the University of Kansas.

 Amplitude modulation (AM) radio is a commonplace technology today, and is standard in any type of commercial stereo device. Because of the low cost.

Standard Amplitude Modulation (AM)

Angle Modulation: Phase Modulation or Frequency Modulation Basic Form of FM signal: Constant Amplitude Information is contained in  (t) Define Phase.

1 ISIS-IPHOBAC SUMMER SCHOOL, May 17-18, 2007, Budapest, Hungary "Broadband Architectures and Functions" Photonic microwave signal processing Jianping.

COMMUNICATION SYSTEM EEEB453 Chapter 2 AMPLITUDE MODULATION

1 S Transmission Methods in Telecommunication Systems (4 cr) Linear Carrier Wave Modulation.

Chapter Three: Amplitude Modulation. Introduction Amplitude Modulation is the simplest and earliest form of transmitters AM applications include broadcasting.

New Techniques for Transmitting Microwave Signals Over Optical Fiber ECE Research Review Day – October 9, 2009 Thomas E. Murphy Dept. of Electrical and.

FWM IN SILICON NANOWIRE & MULTICORE FIBER COUPLING

Coherently Coupled Optical Waveguide 報告者：陳嘉怜指導教授：王維新博士.

RoFS-Pforzheim Prof. Bogdan Galwas Warsaw University of Technology.

Quadrature Amplitude Modulation (QAM) format

MODULATION AIDA ESMAEILIAN 1. MODULATION  Modulation: the process of converting digital data in electronic form to an optical signal that can be transmitted.

1 High-Speed Broadband Polarization- Independent Optical Clock Recovery in a Silicon Detector OFC 2006, OWW4 March 8, 2006 Amir Ali Ahmadi Reza Salem Thomas.

Prof. Brian L. Evans Dept. of Electrical and Computer Engineering The University of Texas at Austin EE445S Real-Time Digital Signal Processing Lab Fall.

1 Applications of Polymer in WDM System 台灣大學電子所碩一陳嘉怜.

Electro-optic effect:

A Stable Zn-indiffused LiNbO 3 Mode Converter at μm Wavelength STUT Hsuan-Hsien Lee 2, Ruey-Ching Twu 1, Hao-Yang Hong 1, and Chin-Yau Yang 1 1.

Intermode Dispersion (MMF)

EE16.468/16.568Lecture 7Electro-optical Integrated Circuits Principles of CDMA.

Lecture 7. Tunable Semiconductor Lasers What determines lasing frequency: Gain spectrum A function of temperature. Optical length of cavity Mirror reflectance.

1 A Low Spur Fractional-N Frequency Synthesizer Architecture 指導教授 : 林志明教授學生 : 黃世一 Circuits and Systems, ISCAS IEEE International Symposium.

Basic Encoding Techniques

Coherent-Coupling-Based Wide-Angle Optical Polarization Splitter 報告者：陳嘉怜指導教授：王維新博士.

Modulators & SHG (a) Longitudinal field; (b) Transverse field; (c) Travelling-wave field.

Kerr Effect  n = KE a 2 Applied field Kerr effect term An applied electric field, via the Kerr effect, induces birefringences in an otherwise optically.

Modulators and Semiconductors ERIC MITCHELL. Acousto-Optic Modulators Based on the diffraction of light though means of sound waves travelling though.

Center for Excellence in Engineering Education Photonic Generation of Millimeter Wave Signals for Wireless Applications Mehdi Shadaram Department of Electrical.

A 2.4-GHz 0.18-um CMOS Self-Biased Cascode Power Amplifier

Communication Systems Prof. Chngming Kuo. Chapter 6 Single Tone Modulation Comparisons (cont.)

External Modulator. When data rates were in the low gigabit range and transmission distances were less than 100 km or so, most fiber optic transmitters.

2009/07/201 A novel Zn-indiffused mode converter in x-cut lithium niobate 指導老師：涂瑞清老師學生：蘇慧真.

Amplitude/Phase Modulation

Modelling and Simulation of Passive Optical Devices João Geraldo P. T. dos Reis and Henrique J. A. da Silva Introduction Integrated Optics is a field of.

Ms.Pallavi Dhok Lecturer, ETC Department.  Modulation  The process by which some characteristics of a carrier wave is varied in accordance with an.

Amplitude Modulation Circuits

Weifeng Zhang Microwave Photonic Research Lab University of Ottawa Photonic Temporal Differentiator.

1 Fatima Hussain. Introduction The unprecedented demand for optical network Capacity has fueled the development of long-haul optical network systems which.

Date of download: 6/3/2016 Copyright © 2016 SPIE. All rights reserved. Principle of WDM-RoF system with optical virtual private network for inter-BSs and.

Optical Design of Phosphor Sheet Structure in LED Backlight System

2B- Optical Technologies

Photonic-chip-based RF spectrum analyzer Raphael Bouskila.

Chapter Four: Angle Modulation. Introduction There are three parameters of a carrier that may carry information: –Amplitude –Frequency –Phase Frequency.

Silicon Photonics(15/2) Minkyu Kim Paper Review Nanophotonics, 2014 I.Introduction II.Performance metrics of modulators III.Design of modulators IV.Current.

SOLITON BASED OPTICAL COMMUNICATION

AMPLITUDE MODULATION.

Silicon Depletion-Mode TW Modulator

Discussion today Using Lumerical INTERCONNECT we will simulate a full 50Gbps (25Gbps X 2) 2-channel WDM optical link. Today we will look at the following:

Analog Communications

Fig. 4-1: Pure-crystal energy-band diagram

Lecture 5: DSB-SC AM Modulation 1st semester

Chapter 3: First generation systems-Analog Modulation

Simultaneous Wavelength Conversion and

Chapter Three: Amplitude Modulation

Presentation transcript:

LiNbO3 Optical Single-Sideband Modulator 報告者：陳嘉怜指導教授：王維新博士

Outline Introduction Principle of Operation Experiment and Results Summary References

Introduction Single-Sideband (SSB) Modulator: Material : z-cut lithium niobate (LN) Fabrication: titanium diffusion Advantages: Increase bandwidth efficiency Reduce dispersion penalty Suppress nonlinear effect

Principle of Operation The integrated modulator consists of parallel Mach-Zehnder (MZ) intensity modulator with four optical modulation waveguides.

Signal Diagram Each frequency diagram shows Bessel function profiles of J-4 to J4. J3 J-1 J0 frequency J-3 J1

Optical Output Signals In-phase modes are: Out-of-phase modes are: wc : optical carrier angular frequency wm : modulation angular frequency mf : modulation index

Experiment Block diagrams of the SSB modulation measurement.

Measured Optical Spectra Measured optical spectra of the SSB modulation. The dotted line shows the spectrum of a DFB-LD.

Optical Power vs Driving Voltage Relationship between optical power of J-1 and J3modes and driving voltage. -18.4dB

Modulated Optical Spectra f f(t) J0 J1 J3 J-1 J-3 Modulate DSB SSB

Reduce Dispersion Penalty Double sideband spectrum is susceptible to chromatic dispersion. Using SSB modulation will reduce dispersion penalty. f f(t) J0 J1 J3 J-1 J-3

Suppress Nonlinear Effect Without centered-cubic lattice(like LN), the polarization vector is: Reduce driving power to suppress the nonlinear effects in LN modulators.

Disadvantages Using three Y-branches makes the on/off extinction ratio degraded. A Y-branch three Y-branches

Improved Structure input output A Y-branch Using a Y-branch to improve the on/off extinction ratio. input output A Y-branch

Summary Optical SSB modulation with suppressions J0 and J3 of a 10GHz signal in a driving voltage of 6.3Vp-p Advantages: Increase bandwidth efficiency Reduce dispersion penalty Suppress nonlinear effect Disadvantage: Degrade on/off extinction ratio

References S. Shimotsu, S. Oikawa, T. Saitou, N. Mitsugi, K. Kubodera, T. Kawanishi, and M. Isutsu, “Single Side-Band Modulation Performance of a LiNbO3 Integrated Modulator Consisting of Four-Phase Modulator Waveguides,”IEEE Photon. Technol. Lett., Vol. 13., No. 4, April 2001. R. Hui, Senior Member, IEEE, B. Zhu, R. Huang, C. Allen, Senior Member, IEEE, K. Demarest, and D. Richards, “10Gb/s SCM Fiber System Using Optical SSB Modulation,” IEEE Photon. Technol. Lett. Vol. 13., No. 8, August 2001. A. Loayssa, D. Benito, and M. J. Garde “Single-Sideband Suppressed-Carrier Modulation Using a Single-Electrode Electrooptic Modilator, ” IEEE Photon. Technol. Lett., Vol. 13., No. 8, August 2001.