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Courses

OPTO6002 Advanced Lasers

Module Overview

The operating principles of a wide variety of solid-state lasers will be covered, as well as practical implementations and uses. Solid state lasers in various formats (e.g. bulk/crystal, fibre, ultrafast) are used in many branches of science and technology, and are an important sub-field within the field of photonics, because they drive technologies in related disciplines.

Aims and Objectives

Module Aims

The aim of the course is to provide knowledge of advanced solid state lasers as fundamental tools of contemporary science and technology.

Learning Outcomes

Knowledge and Understanding

Having successfully completed this module, you will be able to demonstrate knowledge and understanding of:

  • Appreciate the potential variety of solid state lasers, with their various advantages and disadvantages
  • Appreciate the breadth of applications for solid state lasers, and why each laser suits a particular application
  • Appreciate the physics behind ultrafast pulse generation and propagation
  • Appreciate the diversity and applicability of attosecond technologies in science and engineering
Subject Specific Intellectual and Research Skills

Having successfully completed this module you will be able to:

  • Understand how the design of lasers will influence their output characteristics
  • Be able to assess the application of different laser systems to particular applications
  • Perform quantitative calculations on the operating parameter and output parameters of a wide variety of solid state and ultrafast lasers
  • Predict the properties of new laser systems based upon knowledge of their design parameters
Transferable and Generic Skills

Having successfully completed this module you will be able to:

  • Use a variety of information sources (lectures, web, journals) to understand & solve problems (in this case in contemporary laser physics)
  • Use feedback from problem classes to prepare for answering examination questions

Syllabus

- Fundamentals of lasers - Laser beams and their properties - Gaussian beam optics, beam propagation factor (M 2), multimode beams - Spectroscopic and physical properties of solid-state and fibre laser gain media - Theory for three/four-level lasers – Threshold, slope efficiency, output power, gain - Laser modes and resonator design (free-space and guided-wave) - Pump sources, pump delivery and coupling schemes - Transverse and longitudinal mode selection - Wavelength diversity – Main laser transitions, wavelength selection and tuning - Transient dynamics - Continuous-wave laser architectures – Design considerations and techniques - Pulsed laser architectures – Design considerations and techniques - Heat generation and thermal management - Power scaling strategies (cladding-pumping, MOPAs, thin disk, planar/slab, beam combination) - Pulse propagation in dispersive and nonlinear media - Ultrafast pulse measurement: autocorrelation, FROG - Chirped pulse amplification: Ti-sapphire, fibre - Power scaling limits (thermal, damage, nonlinear, self-focussing) -

Learning and Teaching

Teaching and learning methods

Combination of lectures, lab visits and problem classes.

TypeHours
Follow-up work18
Wider reading or practice34
Completion of assessment task18
Tutorial6
Revision10
Preparation for scheduled sessions18
Lecture36
Total study time140

Resources & Reading list

Eugene Hecht. Optics. 

Orazio Svelto. Principles of Lasers. 

Anthony E Siegman (31533). Lasers. 

Assessment

Summative

MethodPercentage contribution
Examination  (2.5 hours) 70%
Problem Sheets  () 30%

Repeat

MethodPercentage contribution
Examination 100%

Referral

MethodPercentage contribution
Examination  (2.5 hours) 100%

Repeat Information

Repeat type: Internal & External

Linked modules

Pre-requisite: PHYS6024

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