THORLABS EDU-QOP1 Manuals

THORLABS EDU-QOP1 Manuals

Manuals and User Guides for THORLABS EDU-QOP1. We have 1 THORLABS EDU-QOP1 manual available for free PDF download: User Manual

THORLABS EDU-QOP1 User Manual

THORLABS EDU-QOP1 User Manual (166 pages)

Quantum Optics Kit

Brand: THORLABS | Category: Laboratory Equipment | Size: 10 MB

Table of Contents

Table of Contents
3
Chapter 1 Safety

7
Chapter 2 Product Description

8
Chapter 3 Principles of Quantum Optics

10
- Classical Description of Light
  10
- Behavior at a Beamsplitter
  10
- Interference
  11
- Polarization
  12
- Mathematical Formalism of Quantum Mechanics
  14
- Dirac Notation
  14
- General Case
  14
- Application in Quantum Mechanics and Quantum Optics
  14
- Linear Operators
  14
- Eigenstates and Eigenvalues
  15
- Commutator Relations
  15
- Bases of the Hilbert Space
  16
- Observables
  16
- Measurements and Superposition of Quantum States
  17
- Expectation Values
  17
- Mixed States
  17
- Combination of Quantum Systems
  18
- Quantum Description of Light
  18
- Fock States
  18
- Coherent States
  19
- Thermal States
  20
- Proof of Quantized Light - Theory
  20
- Second-Order Correlation Function
  21
- Quantum Mechanical Treatment of a Beamsplitter
  22
- Quantum Fields
  23
- Proof of Quantized Light - Experiment
  24
- Hanbury-Brown-Twiss Experiment
  24
- Correlation Function for Single Photon Detectors
  25
- Grangier-Roger-Aspect Experiment
  26
- Triple Coincidence Detection Scheme
  27
- Triple Coincidence Detection Scheme: Explanation 1
  28
- Triple Coincidence Detection Scheme: Explanation 2
  28
- Accidental Coincidences
  29
- Single Photon Interference
  30
- Theoretical Description
  30
- Experimental Realization
  31
- Quantum Treatment of Polarization
  32
- Theoretical Description
  32
- Experimental Realization
  33
- The Quantum Eraser
  34
- Theoretical Description
  34
- Experimental Realization
  35
- Spontaneous Parametric Down-Conversion
  35
Chapter 4 Experimental Concepts

39
- Single Photon Detectors
  39
- Time Tagging
  40
- Time Tagging Versus Coincidence Electronics
  40
- Jitter and Coincidence Window
  40
- Delay Compensation
  41
Chapter 5 Kit Components

43
- Pump and Alignment Laser
  43
- Crystal and Adjustment Aids
  44
- Optics
  44
- Detectors
  46
- Michelson Interferometer
  47
- Time Tagger and Software
  48
- Quantum Eraser
  49
- Mounting and Tools
  49
- Included Hardware
  50
- Imperial Kit
  50
- Metric Kit
  50
Chapter 6 Quick Setup

51
Chapter 7 Setup and Adjustment

54
- Assembly of Components
  54
- Pump Laser
  54
- Alignment Laser
  56
- Mirrors
  57
- Iris Apertures
  58
- Half-Wave Plates
  59
- Crystal, Axicon, and Filter
  60
- Beamsplitter
  62
- Detectors
  62
- Detector Optics
  63
- Beam Trap
  64
- Alignment Target
  64
- Economy Beamsplitter
  65
- Screen
  65
- Mirrors for Michelson Interferometer
  66
- Lens
  67
- Mounting the LED
  68
- Polarizers for Quantum Eraser
  69
- Labelling the Time Tagger
  70
- Preliminary Alignment
  71
- Software Installation
  71
- Collimating the Pump Laser
  71
- Calibrating the Polarizer
  74
- Setting up the HBT Experiment with the Alignment Laser
  76
- Setting up the Photon Pair Source
  79
- Setting up the Pump Laser Beam Path
  79
- Aligning both Pump and Alignment Laser on the same Path
  81
- Detector Positioning
  84
- Detector Fine Adjustment
  87
- Crystal Angle Adjustment
  89
- Setting up the Grangier-Roger-Aspect Experiment
  90
- Beamsplitter Positioning
  91
- Third Detector Positioning
  92
- Third Detector Fine Adjustment
  92
- Test Measurement
  93
- Setting up the Michelson Interferometer
  94
- Additional Alignment Path
  95
- Interferometer Adjustment
  96
- Detector Positioning
  103
- Detector Fine Adjustment
  103
- Single Photon Interference Adjustment
  104
- Michelson Interferometer Test Measurement
  105
- Setting up the Quantum Eraser
  106
Chapter 8 Learning Goals and Misconceptions

110
Chapter 9 Experiments

112
- HBT-Experiment with Attenuated Laser
  112
- Photon Pair Source
  113
- HBT Experiment with One Arm of the Pair Source
  114
- Grangier-Roger-Aspect Experiment
  114
- GRA Experiment with Classical Light
  115
- Malus' Law for Single Photons
  116
- Single Photon Michelson Interferometer
  117
- Quantum Eraser
  120
Chapter 10 Additional Experiments

122
- Coherence Length
  122
- The Three-Polarizer-Paradox
  124
- Quantum Computing
  124
- Qubits and Gates
  125
- Deutsch-Jozsa Algorithm
  126
- Optical Implementation
  127
- Experimental Realization
  129
- Sample Measurements
  132
- Discussion of Error Sources
  133
- Further Algorithm Ideas
  134
- Direct Event Pulse Observation
  134
Chapter 11 Software

137
- Software Installation
  137
- General Remarks
  137
- Saving Results
  137
- Alignment Tab
  138
- Delay Adjust Tab
  138
- HBT and GRA Tabs
  140
- Malus' Law Tab
  141
- Michelson Interferometer Tab
  142
- Configuration Tab
  143
- Hidden Settings
  144
Chapter 12 Technical Notes

145
- Different Detection Schemes
  145
- Standard Triple Coincidences
  145
- Gated Detection Scheme
  146
- Changing the Detection Scheme in the Software
  147
- Environmental Conditions
  148
- Avoiding Fluctuations in the Michelson Interferometer
  148
- Accidental Coincidences
  150
- Maximizing the Count Rate
  152
- Choice of Polarizers
  153
- Polarizers Vs. Quarter-Wave Plates
  153
- Axicon Design
  154
- Temperature Dependence of Pump Laser Wavelength
  154
- Adjustable Count Rate Ratio
  154
- Movable Michelson Interferometer
  155
- Polarization in the SPDC Process
  156
Chapter 13 Troubleshooting

157
- Pump Laser Not Working
  157
- Low Count Rates with Filter
  157
- Low Count Rates with BBO Crystal
  157
- Low Coincidence Count Rates
  158
- Malus' Law Measurement Is Asymmetric
  158
- Michelson Interferometer Problems
  159
- Quantum Eraser Problems
  159
Chapter 14 Laser Safety Calculation

160
- Laser System
  160
- Laser Class Calculation
  160
- Laser Safety Glasses Calculation
  160
Chapter 15 Acknowledgements

162
Chapter 16 Warranty and RMA Information

163
- Return of Devices
  163
Chapter 17 Thorlabs Worldwide Contacts

164

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