Download or read book Towards an Electrically injected Optical Parametric Oscillator written by Alice Bernard and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le travail présenté dans cette thèse porte sur la conception, la fabrication et la caractérisation de sources prévues pour fonctionner à la fois comme diode laser et comme oscillateur paramétrique optique. Ces lasers sont conçus pour émettre sur un mode d'ordre supérieur afin de permettre une conversion de fréquence paramétrique avec les modes fondamentaux du guide à la fréquence moitié. La diode laser et l'OPO partagent la même cavité optique ; pour assurer l'accord de phase et corriger les écarts à la structure nominale induits lors de l'élaboration par épitaxie, la largeur de ruban est utilisée comme paramètre de contrôle des indices efficaces. Les diodes proposées sont donc étroites (3-5 μm) et gravées profondément. En conséquence, il est potentiellement intéressant d'utiliser des boîtes quantiques pour limiter les recombinaisons non radiatives sur les flancs. Dans le cadre de ce travail, nous avons conçu des diodes basées sur ce principe pour les deux systèmes GaAs/AlGaAs et InGaAsP/InP, qui permettent respectivement d'obtenir potentiellement une émission OPO au voisinage de 2 μm ou de 3 μm. Dans le cas de l'InGaAsP/InP, nous avons étudié au préalable l'indice de réfraction des alliages InGaAsP dans une plage de longueur d'onde jusque-là non couverte par la littérature. Ces données ont été acquises via des mesures d'indice efficace (m-lines) de couches guidantes d'InGaAsP épitaxiées en accord de maille sur un substrat d'InP. Pour des structures laser-OPO optimisées, les simulations montrent que le seuil OPO devrait être obtenu pour une puissance de pompe intracavité de quelques centaines de mW, qu'il est réaliste d'atteindre pour des diodes laser à l'état de l'art. Nous avons étudié les propriétés électro-optiques de diodes lasers à puits quantiques GaAs/AlGaAs réalisées sur la base de nos dessins; l'observation de l'effet laser sur le mode TE2 valide le dessin vertical original de nos diodes lasers. En vue de la fabrication de laser-OPO à ruban étroit, nous avons développé des procédés de fabrication nouveaux sur la Plateforme Technologique Amont (CEA - Grenoble), notamment la gravure profonde (>10 μm) par ICP-RIE. Enfin, nous avons proposé un concept alternatif de diode-OPO, comprenant des cavités laser et OPO distinctes couplées par un taper adiabatique.

Download or read book Injection seeded Optical Parametric Oscillator and System written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical parametric oscillators (OPO) and systems are provided. The OPO has a non-linear optical material located between two optical elements where the product of the reflection coefficients of the optical elements are higher at the output wavelength than at either the pump or idler wavelength. The OPO output may be amplified using an additional optical parametric amplifier (OPA) stage.

Download or read book Injection seeded Optical Parametric Oscillators for Spectroscopy written by Glenn Wayne Baxter and published by . This book was released on 1998 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Studies on Tunable Optical Parametric Oscillators Quarterly Status Report No 2 written by Stanford University. Microwave Laboratory and published by . This book was released on 1970 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical Parametric Oscillators written by Stanford University. Microwave Laboratory and published by . This book was released on 1975 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Special Properties of Optical Parametric Oscillators written by and published by . This book was released on 1996 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical parametric oscillators (OPOS) are useful devices to generate tunable radiation. The tuning characteristics of OPOs can lead to their utility in remote sensing applications. We have investigated injection-seeded OPOs to generate narrow-band Mid-JR radiation for this purpose. OPOs exhibit a resonance structure similar to that of a laser's cavity limiting the frequency choices available. Also, the coupling of the electric fields of the three interacting waves can generate cavity resonances for OPOs which have no cold cavity resonances (i.e. non-resonant OPOS). The potential for generating multiple frequencies simultaneously from a single OPO is discussed. The generation of multiple output frequencies is accomplished by injecting either multiple signal or multiple pump frequencies to the OPO. A seeded SRO is found to be well-suited to generating spectrally pure and stable multi-line output when the input pump field is multiple frequency. The generation of sideband frequencies during multiple seeding is also observed experimentally and addressed theoretically. The spectral purity of the OPO output is related to the frequency separation of the multi-line input as compared to the OPO cavity resonance structure.

Download or read book Research Studies on Optical Parametric Oscillation written by Stephen E. Harris and published by . This book was released on 1969 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The general areas which were studied during the contract period were: The use of cw gas lasers to make cw optical parametric oscillators; ruby pumped noncollinear oscillators; spontaneous parametric emission; phase locked parametric oscillators; the use of the 0.946 micrometer line in Nd:YAG as an oscillator pump; and most recently, a novel method to lock the output of an optical parametric oscillator to an atomic transition. (Author).

Download or read book An Optical Parametric Oscillator for Organic Photonic Materials written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is to certify that we have acquired a Spectra Physics femtosecond Optical Parametric Oscillator OPAL - 1.5 that delivers pulses at a wavelength that is tunable from 1.35 to 1.6 urn, for the amount of $65,000. The OPAL was installed in November 2001 and has been running properly since then. This acquisition provided us with the femtosecond laser source needed to conduct research on organic photonic materials for telecommunications and displays.

Download or read book Quantum Electronics A Treatise written by Herbert Rabin and published by Elsevier. This book was released on 1975-01-01 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantum Electronics: A Treatise, Volume I: Nonlinear Optics, Part B is a three-chapter volume that covers several important applications of nonlinear optics, specifically those concerned with the generation of coherent light at new frequencies. The opening chapter discusses the most fundamental problems in the dispersion properties of second optical harmonic devices. The following chapter addresses the progress made in the understanding and operation of optical parametric oscillators. This chapter also presents the theory of these devices and their important operation characteristics. Optical parametric oscillator factors, such as efficiency, bandwidth, frequency stability, and gains, are also considered in this chapter. The last chapter describes the generation and detection of infrared radiation using nonlinear optics. This chapter also examines the most important features of nonlinear optics. This book will be of value to quantum electronics scientists, engineers, and researchers.

Download or read book A Study of a Continuous wave Voltage tunable Optical Parametric Oscillator written by Edwin George Chaffee and published by . This book was released on 1968 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electrical Electronics Abstracts written by and published by . This book was released on 1997 with total page 2304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research in Progress written by and published by . This book was released on 1991 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical Parametric Oscillator Research written by Eugene O. Ammann and published by . This book was released on 1971 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report summarizes the results obtained during a two year optical parametric oscillator program. The goal of this work is to perform studies which will lead to more efficient, stable operation of optical parametric oscillators. Three subjects have been studied on this program. First, an internal optical parametric oscillator of special design was proposed, built, and operated. This marks only the second time that an internal oscillator has been successfully operated. Stable efficient parametric oscillation was obtained with average 2.1 micron output powers as high as 350 mW. This oscillator output power is an order of magnitude greater than any previously reported. The second and third subjects investigated on this program concern the simultaneous occurrence of nonlinear optical processes. Experimental and theoretical studies were carried out on the simultaneous occurrence of parametric oscillation and second harmonic generation in a single nonlinear crystal. In addition, investigations were begun on the simultaneous occurrence of oscillation and sum-frequency generation. Both of these simultaneous processes are of interest for two reasons: (1) they provide a technique for generating a new output near the pump frequency of an optical parametric oscillator; and (2) in normal oscillator operation, they are undesirable and should be avoided since they act as a loss mechanism for the signal or idler. (Author).

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Research Studies on Tunable Optical Parametric Oscillators Quarterly Status Report No 8 written by Stanford University. Microwave Laboratory and published by . This book was released on 1971 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Official Gazette of the United States Patent and Trademark Office written by United States. Patent and Trademark Office and published by . This book was released on 2000 with total page 1336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Terahertz Technologies written by Ho-Jin Song and published by CRC Press. This book was released on 2015-04-15 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Terahertz waves, which lie in the frequency range of 0.1-10 THz, have long been investigated in a few limited fields, such as astronomy, because of a lack of devices for their generation and detection. Several technical breakthroughs made over the last couple of decades now allow us to radiate and detect terahertz waves more easily, which has trigg