'Mode locking' presentation slideshows

Noise-like pulse dynamics in passively mode-locked fiber lasers

Noise-like pulse dynamics in passively mode-locked fiber lasers. O. Pottiez 1 , Y. Bracamontes-Rodriguez 1 , J. P. Lauterio-Cruz 1 , E. Garcia-Sanchez 1 , H. Santiago-Hernandez 1 , R. Paez-Aguirre 1 , J. C. Hernandez-Garcia 2 , M. A. Bello-Jimenez 3 , E. A. Kuzin 4 , B. Ibarra-Escamilla 4

565 views • 48 slides

The Generation of Ultrashort Laser Pulses

The importance of bandwidth More than just a light bulb Laser modes and mode-locking Making shorter and shorter pulses Pulse-pumping Q-switching and distributed-feedback lasers Passive mode-locking and the saturable absorber Kerr-lensing and Ti:Sapphire Active mode-locking

1.01k views • 43 slides

Example: He-Ne Laser ?0 = 632.5 nm ?? = 0.2 nm Diode Laser ?0 = 900 nm ?? = 10 nm

LASER properties Nearly Monochromatic light. Example: He-Ne Laser ?0 = 632.5 nm ?? = 0.2 nm Diode Laser ?0 = 900 nm ?? = 10 nm. Directionality. Coherence. Incoherent light waves Coherent light waves. Atomic Transitions Stimulated absorption.

639 views • 43 slides

Laser Pulse Generation and Ultrafast Pump-Probe Experiments

Laser Pulse Generation and Ultrafast Pump-Probe Experiments. By Brian Alberding. Goals. Basic Laser Principles Techniques for generating pulses Pulse Lengthening Pulse Shortening Ultrafast Experiments Transient Absorption Spectroscopy. L.A.S.E.R.

769 views • 35 slides

Laser Pulse Generation and Ultrafast Pump-Probe Experiments

Laser Pulse Generation and Ultrafast Pump-Probe Experiments. By Brian Alberding. Goals. Basic Laser Principles Techniques for generating pulses Pulse Lengthening Pulse Shortening Ultrafast Experiments Transient Absorption Spectroscopy. L.A.S.E.R.

539 views • 35 slides

Laser Pulse Generation and Ultrafast Pump-Probe Experiments

Laser Pulse Generation and Ultrafast Pump-Probe Experiments. By Brian Alberding. Goals. Basic Laser Principles Techniques for generating pulses Pulse Lengthening Pulse Shortening Ultrafast Experiments Transient Absorption Spectroscopy. L.A.S.E.R.

472 views • 35 slides

Brian McNeil, Neil Thompson, David Dunning & Brian Sheehy

483 views • 33 slides

6th US-PRC Magnetic Fusion Collaboration Workshop July 11, 2012

The progress in the J-TEXT tokamak. Ge Zhuang, Kenneth Gentle, Zhijiang Wang , Yonghua Ding, Ming Zhang, J-TEXT team. Huazhong University of Science and Technology. 6th US-PRC Magnetic Fusion Collaboration Workshop July 11, 2012. Outline. Hardware development on J-TEXT

482 views • 31 slides

Mode-locking in a-Mo x Ge 1 ? x thin films

Mode-locking in a-Mo x Ge 1 ? x thin films. Tibi Sorop, Peter Kes. Collaborator: Nobu Kokubo (Tsukuba University, Japan). !!!WORK IN PROGRESS!!!. TO DO QUESTIONS. PLAN OF THE TALK. 1. Introduction to Mode-Locking. 2. Motivation. 3. Experimental details. 4. Results and discussions.

266 views • 25 slides

Insert something into the laser cavity that favors high intensities.

352 views • 24 slides

Locking of tearing modes by error field in J-TEXT Tokamak

Locking of tearing modes by error field in J-TEXT Tokamak. Tao XU Qiming HU, Xiwei HU Qingquan YU College of Electric and Electronic Engineering, Huazhong University of Science and Technology. Contents. 1. Background. 2. Basic Equations. 3. Modeling Results. 4. Conclusion.

442 views • 22 slides

Chapter 12. Multimode and Transient Oscillation

Chapter 12. Multimode and Transient Oscillation. Pulsed oscillation : Relaxation oscillation, Q-switching, Mode locking ?. 12.2 Rate Equations for Intensities and Populations. (10.5.8) =>. (10.5.14), G 1 = G 2 =0, A => G 21. Assume, N 1 << N 2 => g( n ) ~ s ( n )N 2.

396 views • 18 slides

laser ranging, mapping, and imaging systems for exploration robots

laser ranging, mapping, and imaging systems for exploration robots. Alex Styler <styler@cmu.edu>. Echo ranging technology.

351 views • 17 slides

Acousto-optic-modulator-stabilized low-threshold mode-locked Nd:YVO 4 laser

Acousto-optic-modulator-stabilized low-threshold mode-locked Nd:YVO 4 laser. Speaker : Wei-Cheng Lin Advisor : Jia-Hon Lin. Outline. Introduction Experiment setup Results & Discussions Summary. Introduction. Picosecond pulses with microjoule energy immensely used in:

387 views • 17 slides

Sub-Picosecond Pulse Generation using Fast Saturable Absorption in AlGaInAs/InP Quantum Wells

251 views • 15 slides

Basic principles of ultrafast lasers

Pump. Dispersion. Mode-locking. OC. HR. Gain. Compensation. Mechanism. l n = 2 L / n. Basic principles of ultrafast lasers. Components of ultrafast laser system. Cavity modes. D f = c/2 L. In phase. RANDOM phase for all the laser modes. LOCKED phases for all the laser modes.

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Review of Last Class

283 views • 10 slides

Locking observed in XP207 for n e = 1-1.5?10 19 m -3

Locking observed in XP207 for n e = 1-1.5?10 19 m -3. 800kA 4.5kG LSN. XP-306: Parametric dependence of low-density locked-mode threshold. Extend comparison w/ theory scalings to different B T How does density threshold scale with B T and T e ?

139 views • 7 slides

A laser system for producing nearly transform-limited pulses, said pulses

130 views • 1 slides

Kerr-lens Mode Locking Without Nonlinear Astigmatism

Introduction:.

286 views • 1 slides