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Introduction to Lasers

Explore real-world applications of lasers to understand their technology and gain practical knowledge of how lasers work.


Introduction to Lasers

  • 4 weeks

  • 1 hour per week

  • Digital certificate when eligible

  • Introductory level

Find out more about how to join this course

  • Duration

    4 weeks
  • Weekly study

    1 hour
  • 100% online

    How it works
  • Unlimited subscription

    $244.99 for one yearLearn more

Gain an understanding of laser systems

From hospitals to bar code scanners, almost all of us interact with lasers in some way.

On this four-week course, you’ll delve into laser systems to understand how they work.

Exploring real-world examples, you’ll gain practical knowledge of laser applications in industry, energy technology, medical fields, and daily life.

Understand the process behind optimising laser performance

You’ll gain a solid introduction to lasers, discovering core concepts such as quantum transitions in atoms, stimulated emission and amplification, and optical beams.

Next, you’ll understand how the designing of advanced materials can help optimise laser performance.

Learn how to prepare a laser system

As you explore the principles of lasers, you’ll learn how to prepare a system to obtain gain.

To further your knowledge, you’ll then learn advanced concepts such as how EM waves propagate in space, laser output spectrum, and the Gaussian beam.

Delve into laser applications

You’ll conclude by looking at the many applications of lasers across various industries.

Through this practical exploration, you’ll understand how we interact with lasers and how this could develop in future.

Collaborating with experts from both Taipei Medical University and National Taipei University of Technology you’ll finish the course with a solid understanding of laser technology.

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  • Week 1

    Physics of light

    • Physics of LIGHT

      Light is made of billions of small packets of energy that we call photons. These photons have no mass, but each photon has a specific amount of energy that depends on its frequency (number of vibrations per second).

  • Week 2

    Principle of lasers

    • Light and Matter

      Matter can emit, absorb, transmit, and reflect (or scatter) light. In a laser system, all of these interactions are involved.

    • Three main elements in a laser

      In a laser system, the pump source energizes the gain medium, which amplifies light through stimulated emission. The resonator maintains optical feedback, enabling coherent laser output.

  • Week 3

    Laser performance

    • Laser output power

      Laser output power can be determined through the inside cavity intensity. Laser power and slope efficiency significantly impact laser applications across industries.

  • Week 4

    Laser applications

    • Laser applications in daily life

      Laser applications are ubiquitous, from high-speed internet and medical surgeries to barcode scanning and entertainment through laser shows. Their precision revolutionizes industries, enhancing convenience.

    • Assessment time

      This is the end of the course. If you wish to obtain a certificate, you can take the test. You are also welcome to leave your feedback on how you would like to apply what you have learnt in this course.

When would you like to start?

Start straight away and join a global classroom of learners. If the course hasn’t started yet you’ll see the future date listed below.

  • Available now

Learning on this course

On every step of the course you can meet other learners, share your ideas and join in with active discussions in the comments.

What will you achieve?

By the end of the course, you‘ll be able to...

  • Understand operating principles of a laser system.
  • Learn about three main elements of a laser.
  • Calculate laser gain and output power.
  • Analyze laser efficiency and pumping threshold.
  • Explore laser applications.

Who is the course for?

This course is designed for anyone interested in laser light sources and their applications across different industries.

Who will you learn with?

National Taipei University of Technology (NTUT) is the first university of science and technology in Taiwan that aims at industrial education and is famous for its engineering department.

Who developed the course?

Taipei Medical University

Taipei Medical University (TMU) has been a leader in Taiwan’s healthcare system for over half a century due to its research, teaching excellence, internationalization and outstanding medical service.

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Ways to learn

Choose the best way to learn for you!

Subscribe & save

$244.99 for one year

Automatically renews

Develop skills to further your career

  • Access to this course
  • Access to 1,000+ courses
  • Learn at your own pace
  • Discuss your learning in comments
  • Digital certificate when you're eligible

Cancel for free anytime

Buy this course

$134/one-off payment

Fulfill your current learning need

  • Access to this course
  • Learn at your own pace
  • Discuss your learning in comments
  • Printed and digital certificate when you’re eligible

Limited access


Sample the course materials

  • Access expires 20 Oct 2023

Find out more about certificates, Unlimited or buying a course (Upgrades)

Sale price available until 31 October 2023 at 23:59 (UTC). T&Cs apply.

Find out more about certificates, Unlimited or buying a course (Upgrades)

Sale price available until 31 October 2023 at 23:59 (UTC). T&Cs apply.

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  • Complete 90% of course steps and all of the assessments to earn your certificate

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