Get updates on Eligibility, Admission, Placements Fees Structure
Quick Facts
| Medium Of Instructions | Mode Of Learning | Mode Of Delivery |
|---|---|---|
| English | Self Study | Video and Text Based |
Course Overview
The Introduction to LASER certification course provides a great deal of exposure to the scientists, teachers, working engineers, or anybody interested in knowing how LASERS work. Spread over 12 weeks, this elective course is offered by Prof. M. R Shenoy, a faculty of IIT Delhi. He joined IIT Delhi in 1988 and is known for his collaborative research on Integrated Optical Devices.
The Introduction to LASER certification syllabus gives students deep insights into the principle functioning behind the lasers. It also deals with the issues concerned with the design and output characteristics of the Lasers along with resonator physics.
The Introduction to LASER training is an ‘applied’ course in nature. It could be opted by students studying B.E/B.Tech (3rd/4th year)/M.Sc (2nd year)/M.Tech (1st year). Moreover, the course is approved by the AICTE as an FDP course. It mandates a sincere and regular effort on the part of the student to obtain expertise in the subject.
The Highlights
- Course offered by IIT Delhi
- Undergraduate/Postgraduate level course
- Twelve-week course
- Certification available
- Elective course
- AICTE approved FDP course
- Open to freshers and working professionals
- In-course assignments (for certification)
- Course contents can be freely accessed.
- E-certificates only
Programme Offerings
- Course offered by IIT Delhi
- Course contents can be freely accessed
- Undergraduate/Postgraduate level course
- In-course assignments (for certification)
- Twelve-week course
- Open to freshers and working professionals
- Certificate available.
Courses and Certificate Fees
| Fees Informations | Certificate Availability | Certificate Providing Authority |
|---|---|---|
| INR 1000 | yes | IIT Delhi |
The Introduction to LASER certification fee is Rs 1,000 for obtaining the course certificate. There are no course fees to audit the course. You can learn freely. However, to write an exam and obtain a certificate, the candidates must pay the stipulated amount. The registration link for the same is provided after a few weeks, and all the enrolled candidates will be informed in advance.
Introduction to LASERS fee structure
Course name | Total fees |
Introduction to LASERS (certificate exam) | Rs 1,000 |
Eligibility Criteria
The Introduction to LASER certification requires the candidates to have a fundamental undergraduate-level knowledge of the concepts of optics, atomic physics, and electromagnetics. A basic understanding of these concepts will enhance the candidate’s capability of understanding the course better.
Certification qualifying details
To obtain a certification for the Introduction to LASER online course, all the students must appear and clear the end term proctored examination at an offline center designated by NPTEL.
What you will learn
Candidates who complete the Introduction to LASER online course will become adept in the following areas:
- Laser oscillations
- Transweevs modes of laser resonators
- Hermite-Gauss modes of a spherical mirror resonator
- Laser rate equations
- Characteristics of LASER output
Who it is for
The Introduction to LASERS training is best suited for:
- 3rd year, 4th-year B.Tech/M.Sc (Physics/Electronics/ electronic sciences) students
- M.Tech 1st sem students with no previous exposure to Lasers in any course
- Working engineers with the zeal to know about Lasers
Admission Details
- Follow the link mentioned below to reach the Introduction to LASER online course page: https://onlinecourses.nptel.ac.in/noc24_ph45/preview
- Upon reaching the Swayam Portal, click on the ‘Sign-in/Register’ button at the top of the course page to begin the admission process.
- You will now be directed to a page that asks you to sign in either with your login credentials or your socials (Google/Facebook/Microsoft).
- If you already have an account on Swayam, you can log in with those credentials, or you can also sign up.
- Upon signing up, a new registration form appears where you must enter your name, email address, password, and verify these details with a verification code.
- You can now proceed by filling in any other relevant details and completing the admission process.
- Upon finishing, you will be directed to the portal, and you can start learning right away!
Application Details
Information such as educational details, contact information, occupational information, and personal details are required while creating an account. However, if you already have a Swayam Account, you can enrol in the Introduction to LASERS online training program by merely logging in.
The Syllabus
Part I: Interaction of Radiation with Matter
- General Introduction
- Spontaneous and stimulated emissions
- The Einstein coefficients
Part I: Interaction of Radiation with Matter
- Line shape function
- Homogeneous and inhomogeneous broadening
- Line-broadening mechanisms
- Doppler and collision broadening
Part II: Scheme of Light Amplification
- Rates of stimulated emission and absorption
- The Meta stable state and Laser action
- Condition for amplification by stimulated emission
Part II: Scheme of Light Amplification
- 3- level and 4-level pumping schemes
- Laser rate equations
- 2, 3, and 4 level laser systems
- Condition for population inversion
- Gain saturation
- Laser amplifiers
- Gain and bandwidth
- Rare earth-doped fiber amplifiers.
Part III
- Optical resonators plane mirror resonator
- Cavity loss
- Q factor
- Cavity lifetime
- Resonance frequencies
- Spherical mirror resonators: Ray paths in the resonator
- Stable and unstable resonators
- Resonator stability condition
- Hermite gauss modes of a spherical mirror resonator
- Transverse modes of laser resonators
- Gaussian beams in laser resonators
Part IV
- Optical feedback
- Laser oscillations
- Threshold conditions
- Variation of laser power near threshold
- Optimum output coupling
- Characteristics of laser output
- Mode selection
- Methods of pulsing lasers
- Oscillation frequency
- Q-switching
- Mode locking
- Single-frequency lasers
Part V
- Some Laser Systems: Ruby, He-Ne, Nd:YAG, Fiber lasers
- Tunable lasers
- Semiconductor lasers
- Ti sapphire lasers
- Laser safety
Evaluation process
Candidates who wish to obtain a certificate for the Introduction to LASER online course by Swayam must submit internal assessments and write the end-term proctored examination. To earn the certification, candidates must ensure that they achieve at least 40% marks in both assignments and tests.