Dissertation > Excellent graduate degree dissertation topics show

Investigation of LD-Side-Pumped Highrepetition Rate 670nm RED Laser

Author: YuZhiQiang
Tutor: JinGuangYong
School: Changchun University of Science and Technology
Course: Optics
Keywords: Red laser Saturable absorber Passively Q Intracavity frequency doubling
CLC: TN248
Type: Master's thesis
Year: 2011
Downloads: 18
Quote: 0
Read: Download Dissertation

Abstract


High power all-solid-state red laser due to the large color screen in the laser show , laser measurement , high-density holographic storage , laser printing , and laser medical application , has been widely research hotspot . With red applications continue to increase in demand , the red output power , repetition rate , beam quality and pulse width parameters put forward higher requirements. This low emission line of the laser material at 1.34μm gain and nonlinear frequency conversion efficiency and low technical problems need to be addressed . This thesis by LD side pumped Nd : YAP crystal 1.3μm spectral saturable absorber V : YAG passively Q 1.3gm high repetition rate laser output , and then through the LBO crystal intracavity frequency doubling 670nm red output. First proposed by V: YAG as to obtain high -repetition-rate Q- elements , to provide a new method to obtain high -repetition-rate red red . The main research contents are as follows : (1 ) contrast 1.3umm band laser material characteristics to determine the laser material pumped Q- doubling crystal , was first proposed LD side -pumped Nd : the YAP crystal V : YAG passively Q- LBO intracavity frequency doubling the red output technology program . (2 ) through MATLAB software to simulate the frequency doubling crystal phase-matching curve, the effective nonlinear coefficient , walk-off angle and allow the angle , the comparative analysis of the characteristics of the doubling crystal red , to determine the optimal frequency doubling crystal The best phase matching . ( 3) According to the equivalent thermal lens and ABCD transmission matrix theory , the simulation of high -repetition-rate the red experimental cavity -type structure , optimization of the cavity parameters . ( 4) experimental study the impact of the the crystal initial transmittance of the Q- cavity structure , frequency doubling crystal length and intracavity power density of the average output power , pulse width and repetition frequency , and gives the corresponding curve . Pumping power 840W, V: YAG initial transmittance T = 92 % , the LBO length of 20mm, the linear cavity structure we obtain the maximum single pulse energy and peak power , respectively 87.14uJ and 528W corresponding to the pulse width and repetition frequency of 165ns and 10.5kHz . V cavity structure V : YAG initial transmittance T = 96 % , the LBO length of 20mm, the maximum average power is 1.29W, the corresponding pulse width is 231ns , the repetition frequency of 13kHz , the baseband optical red efficiency of 32.3% .

Related Dissertations

  1. Passively mode-locked fiber laser and its dispersion management,TN248.1
  2. Intracavity frequency doubling Raman lasers and coherent anti-Stokes collinear phase matching theory,TN248
  3. Theoretical and Experimental Studies on Passively Q-switched and Mode Locking Tm:YAP Lasers,TN248.4
  4. Er3+/Yb3+ Codoped Double-clad Fiber Cavity Laser,TN248
  5. Study on Ultra-short Optical Pulse Generation,TN929.11
  6. Passively Mode-locked Technologies Based on SOA Nonlinear Polarization Rotation,TN248
  7. Study on the Q-switching Microcosmic Mechanism of Semiconductor Saurable Absober,TN248
  8. Theoretical and Experimental Studies on 1123 nm Nd:YAG Ceramic Lasers,TN248.1
  9. Investigations on CW LD Side-Pumped High-Repetition-Rate 266nm UV Laser,TN248
  10. Development of LD End-pumped 2W All-solid-state Green Laser,TN248.1
  11. Experimental Study on Passively Q-switched All Solid State Optical Parametric Oscillators,TN753.91
  12. Continuous solid-state 670nm red laser research,TN248.1
  13. Study on Passively Mode-Locked Ultrashort Pulse Fiber Laser,TN248
  14. Nanometer semiconductor thin films of Nd : YVO_4 laser single and dual wavelength laser passively Q,TN248
  15. Study on Optical Source and System of Optical Coherence Tomography,TN248
  16. Study of the Dual-frequency Fiber Laser Used in the Generation of Terahertz Wave,TN248
  17. LD end pumped YVO_4/Nd : YVO_4 and Nd : Y_ (0.8 ) Lu_ ( 0.2 ) VO_4 crystal tune Q laser characteristics,TN248
  18. Ld-pumped Nd:YAG/LBO All Solid-state Blue Laser,TN248.1
  19. Numerical Simulation on Flow Field of Vertical-axis Variable-pitch Turbine,O35
  20. Clamping experimental and theoretical study of semiconductor laser pumped passively Q,TN248.4

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Laser technology, the maser > Laser
© 2012 www.DissertationTopic.Net  Mobile