APPLICATION DU VERROUILLAGE PAR INJECTION OPTIQUE DE DEUX LASERS SEMICONDUCTEURS A UNE TRANSMISSION OPTIQUE COHERENTE PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download APPLICATION DU VERROUILLAGE PAR INJECTION OPTIQUE DE DEUX LASERS SEMICONDUCTEURS A UNE TRANSMISSION OPTIQUE COHERENTE PDF full book. Access full book title APPLICATION DU VERROUILLAGE PAR INJECTION OPTIQUE DE DEUX LASERS SEMICONDUCTEURS A UNE TRANSMISSION OPTIQUE COHERENTE by PHILIPPE.. DOARE. Download full books in PDF and EPUB format.
Author: PHILIPPE.. DOARE
Publisher:
ISBN:
Category :
Languages : fr
Pages :
Get Book Here
Book Description
CETTE ETUDE SE SITUE DANS LE CADRE DES TRANSMISSIONS OPTIQUES COHERENTES ET A POUR BUT D'AMPLIFIER LE SIGNAL OPTIQUE A L'EMISSION D'UN SYSTEME AFIN D'EN ACCROITRE LA PORTEE. LA TECHNIQUE PROPOSEE EST LE VERROUILLAGE PAR INJECTION OPTIQUE DE DEUX LASERS SEMICONDUCTEURS. LE PREMIER LASER, DIT LASER MAITRE, PRESENTE UN COMPORTEMENT MONOFREQUENCE ET UNE TRES BONNE PURETE SPECTRALE, ADAPTEE AU DEBIT DE LA LIAISON. ON MONTRE ALORS QUE SOUS CERTAINES CONDITIONS D'INJECTION OPTIQUE, LE LASER ESCLAVE SE VERROUILLE EN FREQUENCE SUR LE LASER MAITRE ET ACQUIERT LES PROPRIETES SPECTRALES DE CE DERNIER. UNE AMPLIFICATION DU SIGNAL OPTIQUE EST POSSIBLE EN CHOISISSANT UN LASER ESCLAVE DE PLUS FORTE PUISSANCE QUE LE LASER MAITRE. ON MONTRE EGALEMENT Q'UNE MODULATION DU COURANT D'ALIMENTATION GENERE, EN REGIME DE SYNCHRONISATION, UNE MODULATION DE PHASE DU SIGNAL OPTIQUE RESULTANT. LES DEUX FONCTIONS AMPLIFICATEUR RESONNANT ET MODULATEUR DE PHASE SONT ETUDIEES DANS CE TRAVAIL. UNE APPLICATION DE CETTE TECHNIQUE D'AMPLIFICATION A UN SYSTEME DE TRANSMISSION EST DECRITE. IL S'AGIT D'UNE TRANSMISSION OPTIQUE COHERENTE UTILISANT UNE DETECTION HOMODYNE A DIVERSITE DE PHASE. LES LASERS (EMETTEUR ET OSCILLATEUR LOCAL) UTILISES DANS CE SYSTEME SONT DES LASERS STABILISES EN FREQUENCE DE MANIERE ABSOLUE ET INDEPENDANTE SUR UNE LONGUEUR D'ONDE DE REFERENCE. LE LASER ESCLAVE EST UN LASER DE TYPE BH (BURIED HETEROSTRUCTURE) ET LE GAIN NET OBTENU EST DE L'ORDRE DE 10 DB
Author: PHILIPPE.. DOARE
Publisher:
ISBN:
Category :
Languages : fr
Pages :
Get Book Here
Book Description
CETTE ETUDE SE SITUE DANS LE CADRE DES TRANSMISSIONS OPTIQUES COHERENTES ET A POUR BUT D'AMPLIFIER LE SIGNAL OPTIQUE A L'EMISSION D'UN SYSTEME AFIN D'EN ACCROITRE LA PORTEE. LA TECHNIQUE PROPOSEE EST LE VERROUILLAGE PAR INJECTION OPTIQUE DE DEUX LASERS SEMICONDUCTEURS. LE PREMIER LASER, DIT LASER MAITRE, PRESENTE UN COMPORTEMENT MONOFREQUENCE ET UNE TRES BONNE PURETE SPECTRALE, ADAPTEE AU DEBIT DE LA LIAISON. ON MONTRE ALORS QUE SOUS CERTAINES CONDITIONS D'INJECTION OPTIQUE, LE LASER ESCLAVE SE VERROUILLE EN FREQUENCE SUR LE LASER MAITRE ET ACQUIERT LES PROPRIETES SPECTRALES DE CE DERNIER. UNE AMPLIFICATION DU SIGNAL OPTIQUE EST POSSIBLE EN CHOISISSANT UN LASER ESCLAVE DE PLUS FORTE PUISSANCE QUE LE LASER MAITRE. ON MONTRE EGALEMENT Q'UNE MODULATION DU COURANT D'ALIMENTATION GENERE, EN REGIME DE SYNCHRONISATION, UNE MODULATION DE PHASE DU SIGNAL OPTIQUE RESULTANT. LES DEUX FONCTIONS AMPLIFICATEUR RESONNANT ET MODULATEUR DE PHASE SONT ETUDIEES DANS CE TRAVAIL. UNE APPLICATION DE CETTE TECHNIQUE D'AMPLIFICATION A UN SYSTEME DE TRANSMISSION EST DECRITE. IL S'AGIT D'UNE TRANSMISSION OPTIQUE COHERENTE UTILISANT UNE DETECTION HOMODYNE A DIVERSITE DE PHASE. LES LASERS (EMETTEUR ET OSCILLATEUR LOCAL) UTILISES DANS CE SYSTEME SONT DES LASERS STABILISES EN FREQUENCE DE MANIERE ABSOLUE ET INDEPENDANTE SUR UNE LONGUEUR D'ONDE DE REFERENCE. LE LASER ESCLAVE EST UN LASER DE TYPE BH (BURIED HETEROSTRUCTURE) ET LE GAIN NET OBTENU EST DE L'ORDRE DE 10 DB
Author: C. Gomez-Reino
Publisher: Springer Science & Business Media
ISBN: 3662047411
Category : Science
Languages : en
Pages : 247
Get Book Here
Book Description
This book provides a comprehensive and thorough treatment on fundamentals and applications of light propagation through inhomogeneous media. The authors present a description of the phenomena, components and technology used in GRIN Optics, and analyze various applications.
Author: Hamed Al-Raweshidy
Publisher: Artech House
ISBN: 1580531482
Category : Computers
Languages : en
Pages : 459
Get Book Here
Book Description
Over the past decade there have been massive advances in the areas of mobile and optical fiber communications. This unique book shows you how to combine these methods to create new radio over fiber technologies that offer seamless operation and greater multimedia application potential for your current and third generation mobile communication networks.
Author: Don Montague
Publisher: Taylor & Francis
ISBN: 9780419199106
Category : Architecture
Languages : en
Pages : 472
Get Book Here
Book Description
This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.
Author: T. Okoshi
Publisher: Springer Science & Business Media
ISBN: 9789027726773
Category : Technology & Engineering
Languages : en
Pages : 302
Get Book Here
Book Description
Author: Joseph Weber
Publisher: Courier Corporation
ISBN: 0486438872
Category : Science
Languages : en
Pages : 210
Get Book Here
Book Description
An internationally famous physicist and electrical engineer, the author of this text was a pioneer in the investigation of gravitational waves. Joseph Weber's General Relativity and Gravitational Waves offers a classic treatment of the subject. Appropriate for upper-level undergraduates and graduate students, this text remains ever relevant. Brief but thorough in its introduction to the foundations of general relativity, it also examines the elements of Riemannian geometry and tensor calculus applicable to this field. Approximately a quarter of the contents explores theoretical and experimental aspects of gravitational radiation. The final chapter focuses on selected topics related to general relativity, including the equations of motion, unified field theories, Friedman's solution of the cosmological problem, and the Hamiltonian formulation of general relativity. Exercises. Index.
Author: Stefano Boccaletti
Publisher: A I P Press
ISBN:
Category : Mathematics
Languages : en
Pages : 384
Get Book Here
Book Description
The 8th Experimental Chaos Conference again demonstrated the broad spectrum of areas where nonlinear dynamics plays an important role, such as circuits, hydrodynamics, optics, chemistry, fracture dynamics, neuroscience, and cognitive science. Additional contributions outline the trends for development and application of concepts and techniques of nonlinear dynamics.
Author: Alexander V. Sergienko
Publisher: CRC Press
ISBN: 1420026607
Category : Science
Languages : en
Pages : 248
Get Book Here
Book Description
All current methods of secure communication such as public-key cryptography can eventually be broken by faster computing. At the interface of physics and computer science lies a powerful solution for secure communications: quantum cryptography. Because eavesdropping changes the physical nature of the information, users in a quantum exchange can easily detect eavesdroppers. This allows for totally secure random key distribution, a central requirement for use of the one-time pad. Since the one-time pad is theoretically proven to be undecipherable, quantum cryptography is the key to perfect secrecy. Quantum Communications and Cryptography is the first comprehensive review of the past, present, and potential developments in this dynamic field. Leading expert contributors from around the world discuss the scientific foundations, experimental and theoretical developments, and cutting-edge technical and engineering advances in quantum communications and cryptography. The book describes the engineering principles and practical implementations in a real-world metropolitan network as well as physical principles and experimental results of such technologies as entanglement swapping and quantum teleportation. It also offers the first detailed treatment of quantum information processing with continuous variables. Technologies include both free-space and fiber-based communications systems along with the necessary protocols and information processing approaches. Bridging the gap between physics and engineering, Quantum Communications and Cryptography supplies a springboard for further developments and breakthroughs in this rapidly growing area.
Author: Sébastien Forget
Publisher: Springer
ISBN: 3642367054
Category : Science
Languages : en
Pages : 179
Get Book Here
Book Description
Organic lasers are broadly tunable coherent sources, potentially compact, convenient and manufactured at low-costs. Appeared in the mid 60’s as solid-state alternatives for liquid dye lasers, they recently gained a new dimension after the demonstration of organic semiconductor lasers in the 90's. More recently, new perspectives appeared at the nanoscale, with organic polariton and surface plasmon lasers. After a brief reminder to laser physics, a first chapter exposes what makes organic solid-state organic lasers specific. The laser architectures used in organic lasers are then reviewed, with a state-of-the-art review of the performances of devices with regard to output power, threshold, lifetime, beam quality etc. A survey of the recent trends in the field is given, highlighting the latest developments with a special focus on the challenges remaining for achieving direct electrical pumping of organic semiconductor lasers. A last chapter covers the applications of organic solid-state lasers.
Author: Xavier Begaud
Publisher: John Wiley & Sons
ISBN: 1118586573
Category : Technology & Engineering
Languages : en
Pages : 217
Get Book Here
Book Description
Ultra Wide Band Technology (UWB) has reached a level of maturity that allows us to offer wireless links with either high or low data rates. These wireless links are frequently associated with a location capability for which ultimate accuracy varies with the inverse of the frequency bandwidth. Using time or frequency domain waveforms, they are currently the subject of international standards facilitating their commercial implementation. Drawing up a complete state of the art, Ultra Wide Band Antennas is aimed at students, engineers and researchers and presents a summary of internationally recognized studies.
