User`s guide
Agilent 81600B Tunable Laser Source Family, Fourth Edition 9
List of Figures
Figure 1  Agilent 81600B Tunable Laser Source Family modules 
(dual output, angled contact connectors) . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 2  Agilent 81600B Tunable Laser Source Family module 
(single output, straight contact connectors)  . . . . . . . . . . . . . . . . . . . . 18
Figure 3  PMF Output Connector   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 4  Angled and Straight Contact Connector Symbols  . . . . . . . . . . . . . . . . 22
Figure 5  Agilent 81600B Tunable Laser Module (angled contact connector) 22
Figure 6  Agilent 8164A/B mainframes, Agilent 81600B Family Tunable 
LaserSource modules, and Options  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 7  Absolute wavelength accuracy (continuous sweep mode) . . . . . . . . 37
Figure 8  Dynamic power reproducibility (continuous sweep mode) . . . . . . . . 38
Figure 9  Maximum Output Power vs Wavelength, Maximum Flat Output 
Power vs Wavelength   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 10  Circular traces on the Poincaré sphere used to calculate 
polarization extinction ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 11  Power flatness vs. wavelength. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Figure 12  Power linearity.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Figure 13  Power stability.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Figure 14  Relative wavelength accuracy (continuous sweep mode). . . . . . . . . 45
Figure 15  Relative wavelength accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 16  Signal to source spontaneous emission ratio. . . . . . . . . . . . . . . . . . . . 47
Figure 17  Signal to total source spontaneous emission ratio.  . . . . . . . . . . . . . .47
Figure 18  Wavelength repeatability (continuous sweep mode).  . . . . . . . . . . . . 48
Figure 19  Test Setup for Wavelength Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Figure 20  Absoute and Relative Wavelength Accuracy.  . . . . . . . . . . . . . . . . . . .78
Figure 21  Mode-hop free Tuning Range.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Figure 22  Wavelength Repeatability.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Figure 23  Maximum Output Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Figure 24  Test Setup for Maximum Output Power Tests . . . . . . . . . . . . . . . . . . . 89
Figure 25  Power Linearity.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 26  Test Setup for Power Linearity Tests   . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Figure 27  Test Setup for Power Linearity Tests using built-in attenuator . . . . 97
Figure 28  Power Flatness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
Figure 29  Test Setup for Power Flatness Tests - Low SSE output . . . . . . . . . .100
Figure 30  Test Setup for Power Flatness Tests - High Power output, 
without using attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Figure 31  Test Setup for Power Flatness Tests - High Power output, using 
the built-in attenuator  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Figure 32  Stability of Power Output versus Time. . . . . . . . . . . . . . . . . . . . . . . . .107
Figure 33  Test Setup for Power Stability Tests  . . . . . . . . . . . . . . . . . . . . . . . . . .108
Figure 34  Signal-to-Source Spontaneous Emission Ratio.   . . . . . . . . . . . . . . . .112
Figure 35  Test Setup for Signal-to-Source Spontaneous Emission Test 
- High Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
Figure 36  Transmission Characteristics of Fiber Bragg Grating  . . . . . . . . . . . .116
Figure 37  Test Setup for Signal-to-Source Spontaneous Emission Test 
- Low SSE Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Figure 38  Total SSE Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123










