Optical Spectrum Analyzers
Table of Contents
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
........................................................................................ 14
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
.......................................................................................................................... 20
Chapter 7
Software
......................................................................................................................... 21
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
