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Dynamic High Repetition Rate Carbon Nanotube Fiber Laser Frequency Comb

This article discusses the characterization of carbon nanotubes and their application in designing lasers for frequency combs. It also explores the use of nanotubes as a mode-locking mechanism and the advantages of short cavity lengths for high repetition rate lasers. The article concludes with a recap and offers a stable mode-locked frequency comb reference.

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Dynamic High Repetition Rate Carbon Nanotube Fiber Laser Frequency Comb

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  1. Dynamic High Repetition Rate Carbon Nanotube Fiber Laser Frequency Comb By: Tyler McKean Rose-Hulman Institute of Technology Terre Haute, IN July 23, 2009

  2. Outline Frequency Combs Characterization of carbon nanotubes Laser designs containing carbon nanotubes Applications of these lasers to frequency combs

  3. Frequency Comb • Cundiff, Steven T. and Ye, Jun. ‘Phase stabilization of mode-locked lasers.’ Journal of Modern Optics, 52:2, 201-219 (2005)

  4. Frequency Comb Metrology • Cundiff, Steven T. and Ye, Jun. ‘Phase stabilization of mode-locked lasers.’ Journal of Modern Optics, 52:2, 201-219 (2005)

  5. Saturable Absorption 3-D Model of a Carbon Nanotube

  6. Damage Threshold of Carbon Nanotubes • Nanotubes damage at 40-50mW CW laser light Without Deposition With Deposition Damaged End m O

  7. Wavelength Dependent Absorption -Sze Y. Set et al. ‘ultrafast Fiber Pulsed Lasers Incorporating carbon nanotubes.’ IEEE Quantum Electronics vol. 10, No. 1 (2004)

  8. 100 MHz Rep. Rate CNFL 48 cm LD 15 cm WDM 20 cm PM 40 cm 90/10 CNs 95/5 16 cm 12 cm 13 cm OSA 19 cm 10 cm EDF SMF HI 1060

  9. Advantages of this • Easily mode locked • Durable • Short cavity length • Light weight/portable • High Rep. Rate

  10. Piezoelectric Transducer Crystal that expands when electricity is applied 17.4 μm change in size Used to stretch fiber

  11. High Dynamic Rep. Rate Laser Design

  12. Dynamic Rep. Rate Calculation

  13. Recap Want to do Frequency Comb Metrology Stable Mode-Locked Frequency Comb Reference Use Nanotubes as Mode-Locking Mechanism Short Cavity Length for High Rep. Rate Dynamic Control over Rep Rate

  14. Thank You! Questions?

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