Dissertation > Excellent graduate degree dissertation topics show

The Design of Optical and Data Gathering System of Optical-fiber Laser Range Finder System

Author: XuSiEn
Tutor: WangYing
School: Huazhong University of Science and Technology
Course: Optical Engineering
Keywords: Heterodyne interferometer Heterodyne signal Linewidth PCI-6221 data acquisition card
CLC: TN249
Type: Master's thesis
Year: 2008
Downloads: 299
Quote: 2
Read: Download Dissertation

Abstract


With the continuous improvement of the accuracy of modern manufacturing technology , the development of nanotechnology measurement techniques to establish the nanometrology test standards to become a very important issue in the measurement and testing technology . Nanometer measurement technology is born with the development of nano- and micron technology an emerging discipline both fine machining and micro - electromechanical systems , or in the field of physical precision measurement , the nanometer measurement techniques have a wide range of applications . now able to achieve nanometer measurement : the inductance capacitance micrometer , x -ray interferometer , outside heterodyne laser interferometer measurement-based scanning probe microscopy . This paper focuses on the in the field of nano- measurement technology currently used frequency laser heterodyne interferometer : (1) to grasp and understand the various laser heterodyne interferometer optical path structure and range of applications in the topic selection stage . All-fiber heterodyne ranging method using acousto-optic frequency shifter . (2) the completion of the interferometer system the optical parameters of the design , including the laser power , the degree of polarization , linewidth requirements , the same optical path design reasons and theoretical derivation , and were interferometer optical path adjustment and measurement experiments ; (3) design of the based on the PCI-6221 data acquisition card , the timing acquisition function , to vc interface design as a language model; (4) on the design of the various optical parameters ( including laser power, the degree of polarization , linewidth requirements) measurement and experiment, and is given in the case of the frequency shift amount of 10kHz , preliminary heterodyne measurement results . This thesis, all-fiber dual sound and light laser heterodyne interferometer has nearly completed the first phase of the heterodyne ranging , has been the idea of software acquisition and response data , the accuracy can reach nm level , in the domestic leading level .

Related Dissertations

  1. Study on Erbium-doped Fiber Lasers in Optical Communication Systems,TN248
  2. Of 1.05μm high speed broadband laser research,TN248
  3. The Research on 1.5μm Erbium-Doped Narrow Linewidth Fiber Laser,TN248
  4. The Spectral Properties of a Three-Level Atom Driven by Modulated Fields and the Annealing Process of C60 Analyzed by the Isomer Spectrum,O562.1
  5. The Study on Heterodyne Interferometric Microscope for Profiles of Microelectronic Mask Surfaces Measurement,TH744.3
  6. The Key Technical Research of Nanometer Accuracy Measurements and Calibration Systems,TH744.3
  7. Improve the coherence properties of high - power semiconductor lasers,TN248.4
  8. Study on the Ultrafast Dynamics and Processes in Semiconductor Optical Amplifiers,TN722
  9. Measurement of Key Parameters in Nonlinear Applications of SOA,TN929.11
  10. High Power Tm: Fiber Lasers and Application in Fiber-bulk Hybrid Laser Technology,TN248
  11. Fabrication Studies of DFB Laser Based on HPDLC Grating,TN248
  12. Theoretical and Experimental Research on Narrow-linewidth Fiber Amplifiers,TN722
  13. Research on Property & Low Temperature Sintering of Microwave YIG Ferrites,TM277
  14. Studies of Anomalous Effects of Driving Field Linewidth on a One-Atom Dressed-State Laser,O413.2
  15. Single-longitudinal-mode Fiber Lasers and the Measurement of Linewidth,TN248
  16. Single Frequency and Single Polarization Fiber Laser with Narrow Linewidth,TN253
  17. Studies of Electromagnetically Induced Absorption,O562
  18. High-Finesse Optical Cavity and Its Application to Measurement of Ultra-low Cavity Losses and Laser Linewidth,O439
  19. The Study of Lasing Without Inversion in an Open V-Type System,TN241
  20. Study of Resonance Fiber Optic Gyroscope,TP212

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