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THORLABS EDU-QOP1/M User Manual (166 pages)

Quantum Optics Kit

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

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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More THORLABS Manuals

THORLABS EDU-QOP1/M Manuals

THORLABS EDU-QOP1/M User Manual (166 pages)

Table of Contents

Chapter 1 Safety

Chapter 2 Product Description

Chapter 3 Principles of Quantum Optics

Chapter 4 Experimental Concepts

Chapter 5 Kit Components

Chapter 6 Quick Setup

Chapter 7 Setup and Adjustment

Chapter 8 Learning Goals and Misconceptions

Chapter 9 Experiments

Chapter 10 Additional Experiments

Chapter 11 Software

Chapter 12 Technical Notes

Chapter 13 Troubleshooting

Chapter 14 Laser Safety Calculation

Chapter 15 Acknowledgements

Chapter 16 Warranty and RMA Information

Chapter 17 Thorlabs Worldwide Contacts

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