Dissertation > Excellent graduate degree dissertation topics show

Photonic Crystal Slow Light Waveguide Based on Silicon on Insulator

Author: ZhangChao
Tutor: HuangZuoDong
School: Tsinghua University
Course: Electronic Science and Technology
Keywords: SOI (silicon on insulator) photonic crystal slab waveguide slow light coupling loss optical interference tunable optical true time delay
CLC: TN252
Type: Master's thesis
Year: 2009
Downloads: 85
Quote: 3
Read: Download Dissertation

Abstract


Slow light waveguide can control the group velocity of light. The reduction of light speed equals to the increase of photon density in wave-vector space. Slow light technology has important applications in light signal process, nonlinear optoelectronic devices and photonic integration technology.Aiming at integratable slow light waveguide, slow light based on novel dispersion character of photonic crystal slab waveguide has been studied in this paper. Structure design, fabrication process, measurement method, and slow light true time delay were studied theoretically and experimentally. The achievements are as follows:Optimized the waveguide structure, studied the fabrication process of SOI photonic crystal waveguide, found the fabrication process of air-bridge, high quality photonic crystal slab waveguide is fabricated.Designed the width of stripe waveguide to increase coupling efficiency between tapered fiber and stripe waveguide. Designed the interface between stripe waveguide and photonic crystal waveguide to increase coupling efficiency in slow light wavelength region (loss<3dB, when vg=c/50).Studied the measurement method, programmed the automatic control software of measurement system and greatly reduced the measurement time. Photonic bandgap and defect mode are measured and demonstrated.Group index of slow light is measured by fiber Mach-Zehnder interferometer, showing the light speed is less than c/80. The optical true time delay character of photonic crystal waveguide is studied. A 25ps tunable delay is experimentally demonstrated.

Related Dissertations

  1. Signal Detection Circuit Design for Slow-Light Optic Fiber Gyroscope,V241.5
  2. Theoretical Study on Microring Resonators Based All Optical Buffers,TN256
  3. Study of Nonlinear Effects in a Quasi-lambda Four-Level System,O431.2
  4. The Study on the Theory & Experiment of Fiber Optical Rotary Joint Using Dove Prism,TN253
  5. Study on Slow Light Via Stimulated Brillouin Scatting in Optical Fiber,O437.2
  6. Research on the Optical Waveguide for Guided-wave Acousto-optic Modulator,TN252
  7. The Research of Delay System of Slow Light in Fiber Based on SBS,O437.2
  8. Study of Multiwavelength Fiber Laser and Light Transfer Characteristic Based on Stimulated Brillouin Scattering in Optical Fiber,O437.2
  9. Research on Properties and Dynamic Tuning of Slow Light in Two Dimension Photoniccrystal Waveguide,O734
  10. Investigation on Slow Light in Semiconductor Optical Amplifiers,TN722
  11. Study of Slow Light Based on Erbium-doped Fiber Bragg Grating,TN253
  12. Apodized fiber grating based on slow light soliton theory,TN253
  13. Study on Signal Readout Technique for MEMS Gyroscope Based on Optical Interference Phase Detection,O436.1
  14. Investigation of Related Quantum Effects in Electromagnetically Induced Coherent Media,O431.2
  15. Interference and Nonclassical Excitation in the Four-level Atomic System,O431.2
  16. Research on Band Gap and Slow Light Properties in 2D Photonic Crystals and Design of the Optimal Structures,O734
  17. Study on Quantum Interference Effect of Electromagnetically Induced Medium,O431.2
  18. Glaucoma, macular structural and functional changes in comparative study,R775
  19. Research on Slow-Light Propagation Based on Stimulated Brillouin Scattering in Optics Fibers,O437.2
  20. Slow and Fast Light in Media with Saturated and Reverse Saturated Absorption,O436.2
  21. Application of Intelligent Speed Servo Control to Experimental Research on Optical Elastohydrodynamic Lubrication,TH117.2

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Optical waveguide and integrated optics > Waveguide
© 2012 www.DissertationTopic.Net  Mobile