Dissertation > Excellent graduate degree dissertation topics show

DFB Diode Laser Frequency Doubling and Frequency Locking via MTS

Author: LiuZhiHeng
Tutor: LinQiang
School: Zhejiang University
Course: Optics
Keywords: Distributed Feedback Laser Diode Second Harmonic Generation Modulation Transfer Spectroscopy Photo-electric Detector
CLC: TN248
Type: Master's thesis
Year: 2013
Downloads: 23
Quote: 0
Read: Download Dissertation


This thesis presents a new integrated optical system. We make theoretical analysis and research on two key techniques in this system—the second harmonic of laser from distributed feedback laser diode (DFB-LD) and it’s frequency locking. At last, High power780nm laser can be get by frequency multiplicate the high power continuously wave1560nm which has been amplified by EDFA.Over time, the central frequency of a diode laser will drift, so stabilizing the laser becomes important to suits the remand of stable and narrow line width laser in our experiment. So, modulation transfer spectroscopy (MTS) which shield from outside magnitude changes and has a steep slope is used to lock DFB-LD.In Chapter1, the background of atom interferometers and the new optical system we designed is introduced.In Chapter2, the principle of diode laser and DFB-LD is illustrated.In Chapter3, the principle of nonlinear optic and the theory of second harmonic generation are briefly summarized. It has a relationship between temperature and efficiency of second harmonic generation, so we made a temperature control system to get high efficiency, more stable780nm laser.In Chapter4, the normal way of stabling the DFB-LD is briefly presented. We choose MTS to lock DFB-LD, which is less affected by external environment and has a steep slope. Finally, the MTS theory and methods to improve SNR of MTS signal are summarized.In Chapter5, the whole work is summarized and the advice of the improvement of the system is given.

Related Dissertations

  1. Research on Fiber-Optic Vibration Sensor and SHG Laser System with High Frequency Stability Based on Laser Frequency Locking Technology,TP212.14
  2. Non-linear Optical Properties and Structure of Ge-Ga-S Chalcohalide Glasses,TQ171.1
  3. Measurement of Second Hamonic Generation of Organic Single Molecule Films and Powder Samples,O437
  4. Theoretical Study on Optical Second Harmonic Generation Enhancement of Core-Shell Nanostructure,O438
  5. Weak-Light Readout of the Quantum Effect Photoelectric Detector,TN36
  6. A Research for the Technology of Positions Dimensional Inspection Based on Matrix CCD,TP274
  7. Study on Dynamic Error of Overprint and Design of Adaptive Dynamic Balance System,TS803.6
  8. Second harmonic generation of femtosecond laser -based technology to detect the silicon surface of biaxial strain,TN304.12
  9. Quasi-phase Matched Device of Optical Second Harmonic Generation Research,TN771
  10. Researches on Intense Laser Indused Damage of the Photoelectric Detectors,TN36
  11. Optimization and Design of Acousto-optic Tunable Filters,TN713
  12. Study on Solar Follows the System Automatically,TK513.4
  13. Research on Autonomous Line-tracking Robot Based on MSP430,TP242
  14. DPL low noise intracavity frequency-doubled lasers and their applications,TN248
  15. Studies on Femtosecond Pulses Shaping,O432.12
  16. Study of SHG on PbO-B2O3 Glasses and P-N Junction Amorphous Silicon Thin Films,TN304
  17. Mobile Robot Remote Control System with Wireless Programming Function,TP242
  18. Synthesis and Nonlinear Optical Properties of Hybrid Films Containing Heterocyclic Chromophores,TB383.2
  19. Study on Surface Properties and Optoelectronic Devices Fabrication of Silicon by Femtosecond Lasers,TN36
  20. The Effects of Volatile Anesthetics on the Behavior of Paramecium Tetraurelia and Its Mechanism Study,R96
  21. Controllability of Crystallization and Physicochemical Properties of GeS2-based Chalcogenide Glass-ceramics,TQ171.1

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