The course is taught in English. This teaching unit offers an in-depth coverage of coherent optics (photonics). This subject deals with the peculiar properties of laser light and is the basis for technological achievements such as fiber optics communication networks ('broad band access'), deformation or pollution optical sensors or devices used for biological investigations. In particular, both free-space and guided-wave propagation of optical fields are addressed. A number of fundamental optical components are described and the relevant design methods are presented. In addition, the student is exposed to signal-integrity issues of electromagnetic compatibility and quantitative methods are explained to assess such effects in multi-signal transfer structures.

Knowledge and understanding of the concepts of free-space propagation, scattering from stratified dielectrics, optical fields in anisotropic media and dielectric waveguides. Ability to analyze and design basic optical components. Knowledge of Electromagnetic Compatibility (EMC) issues related to signal integrity in high-speed electronics. Ability to assess cross-talk and signal distortions in the design of multi-signal transfer structures.

• Basic electromagnetic theory • Plane waves • Transmission line theory • General characteristics of guided wave propagation.

Free space optics (geometrical optics, gaussian beams, mirrors and lenses, diffractive optical elements) (1CFU) Analysis and design of stratified dielectric structures (antireflection coatings, periodic structures and Bragg mirrors) (1CFU) Optical resonators, Fabry-Perot and Mach-Zehnder interferometers (1 CFU). Crystal optics and interaction with external fields (plane waves in anisotropic media, electrooptic, acoustooptic effects) (1 CFU) Guided wave optics (slab waveguides, optical fibers, mode coupling, directional couplers) (2 CFU) Electromagnetic compatibility for high speed electronics (signal integrity, cross talk in multiconductor transmission lines) (2 CFU)

Exercise sessions are integrated in the lectures. There will be a couple of laboratory sessions covering optical beam propagation and diffraction phenomena. During the course 7-8 homeworks will be assigned, which require the development of simple Matlab programs.

Lecture notes made available through the course website ("Portale della didattica"). Other texts for reference are: B. Saleh, M. Teich,"Elements of Photonics", Wiley 1991 K.Iizuka, "Engineering optics", Springer 1987

Modalità di esame: Prova orale obbligatoria;

Exam: Compulsory oral exam;

... Oral exam (30-45 minutes) aiming at ascertaining if the expected learning outcomes indicated in section 2 have been reached. The students will run the programs developed in the home-works and will discuss the results on the basis of the theory presented in the course.

Gli studenti e le studentesse con disabilità o con Disturbi Specifici di Apprendimento (DSA), oltre alla segnalazione tramite procedura informatizzata, sono invitati a comunicare anche direttamente al/la docente titolare dell'insegnamento, con un preavviso non inferiore ad una settimana dall'avvio della sessione d'esame, gli strumenti compensativi concordati con l'Unità Special Needs, al fine di permettere al/la docente la declinazione più idonea in riferimento alla specifica tipologia di esame.