Final Presentation Q-Switched Pulses Mode Locked Laser David - - PowerPoint PPT Presentation

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Final Presentation Q-Switched Pulses Mode Locked Laser David - - PowerPoint PPT Presentation

Sep 15, 2022 331 likes •540 views

Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Final Presentation Q-Switched Pulses Mode Locked Laser David Fukunaga, Dar Dahlen August 16, 2013 Making a Pulsed Fiber Laser (ish) David

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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

Final Presentation

David Fukunaga, Dar Dahlen August 16, 2013

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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

1 High Powered Pulsed Fiber Laser 2 Q-Switched Pulses 3 Mode Locked Laser

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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

Initial Plan

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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

Energy Levels of Erbium

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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

Dispersion

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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

µs Pulses

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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

Energy Levels of Erbium

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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

Erbium Clusters

I15/2 I13/2 I9/2 Ion 1 Ion 1 Ion 1 Ion 2 Ion 2 Ion 2

Very fast

Solo Ion Ion Pair I15/2 I13/2 I9/2

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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

Saturable Absorber

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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

Mode Locking

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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

Mode Locking

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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

To Be Continued

  • Connectors → Splices
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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

To Be Continued

  • Connectors → Splices
  • More Pump Power
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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

To Be Continued

  • Connectors → Splices
  • More Pump Power
  • Different Fiber (Al?)
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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

The End

Thanks for Listening

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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

Calculating Pulse Power

  • Assume Gaussian Pulse Shape
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Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

Calculating Pulse Power

  • Assume Gaussian Pulse Shape
  • Area under Gaussian function is ac

√ 2π, where a = peak power and c =

2√ 2ln(2) FWHM

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SLIDE 18

Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

Calculating Pulse Power

  • Assume Gaussian Pulse Shape
  • Area under Gaussian function is ac

√ 2π, where a = peak power and c =

2√ 2ln(2) FWHM

  • Average energy per pulse is AveragePower

RepetitionRate

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SLIDE 19

Making a Pulsed Fiber Laser (ish) David Fukunaga, Dar Dahlen High Powered Pulsed Fiber Laser Q-Switched Pulses Mode Locked Laser

Calculating Pulse Power

  • Assume Gaussian Pulse Shape
  • Area under Gaussian function is ac

√ 2π, where a = peak power and c =

2√ 2ln(2) FWHM

  • Average energy per pulse is AveragePower

RepetitionRate

  • So AveragePower

RepetitionRate = (PeakPower)

√ 2π FWHM

2√ 2ln(2)