Table Of Contents - THORLABS Redstone OSA305 Manual

Optical Spectrum Analyzers
Chapter 1 Warning Symbol Definitions . ........................................................................................ 1
Chapter 2 Safety ............................................................................................................................... 2
Chapter 3 Warranty .......................................................................................................................... 3
3.1. Restriction of Warranty ............................................................................................. 3
Chapter 4 Description ...................................................................................................................... 4
4.1. Introduction ............................................................................................................... 4
4.2. Interferometer Design ............................................................................................... 4
4.3. Interferogram Data Acquisition ................................................................................ 6
4.4. Detector Temperature Mode (OSA203C only) ........................................................ 6
4.5. Interferogram Data Processing ................................................................................ 7
4.6. Wavelength Meter Mode ........................................................................................... 7
4.7. Wavelength Calibration and Accuracy .................................................................... 8
4.8. Resolution and Sensitivity ....................................................................................... 8
4.9. Dynamic Range/Optical Rejection Ratio ............................................................... 10
4.10. Apodization ...................................................................................................... 11
4.11. Zero Fill............................................................................................................. 11
4.12. Software ........................................................................................................... 12
4.13. Trigger (Redstone OSA305 only) ................................................................... 12
4.14. Interlock (Redstone OSA305 only) ................................................................. 12
Chapter 5 Using the Free-Space Input ........................................................................................ 1 4
5.1. Table Mounting when Using the Free-Space Input .............................................. 14
5.2. Activation of Alignment Beam ............................................................................... 15
5.3. Free-Space Beam Alignment Example .................................................................. 17
5.3.1. Initial Visual Alignment .................................................................................................. 17
5.3.2. Adjust Software Settings ............................................................................................... 18
5.3.3. Final Alignment ............................................................................................................. 19
5.3.4. Error Estimation ............................................................................................................ 19
Chapter 6 Pure Air .......................................................................................................................... 2 0
Chapter 7 Software . ........................................................................................................................ 2 1
7.1. Spectrum View and Interferogram View ................................................................ 21
7.1.1. Spectrum View .............................................................................................................. 21
7.1.2. Interferogram View ........................................................................................................ 21
7.1.3. Setting the Unit of the Horizontal Axis .......................................................................... 21
7.1.4. Setting the Unit of the Vertical Axis ............................................................................... 22
7.1.5. Displaying the Interferogram While Working in Spectrum View ................................... 22
7.2. Acquiring Data ......................................................................................................... 22
7.2.1. Acquiring a Single Spectrum/Interferogram .................................................................. 22
7.2.2. Repeated Measurements .............................................................................................. 22
7.2.3. Automatic Setup ............................................................................................................ 22
7.2.4. Averaging Interferograms (Redstone OSA305 only) .................................................... 22
7.2.5. Signal ............................................................................................................................ 22
7.2.6. Measurements of Pulsed Sources ................................................................................ 23

Table of Contents