User`s guide

6 Agilent 81618A/9A and Agilent 81623B/4B/6B/8B Optical Heads, Fourth Edition
Total uncertainty 28
Uncertainty at reference conditions 28
Optical Head Specifications 29
Supplementary Performance Characteristics 35
Analog Output 35
Performance Tests 37
Equipment Required 38
Te st Recor d 40
Test Failure 41
Instrument Specification 42
Functional Tests 43
Performance Tests 44
For 81628B only 45
Accuracy Test 46
Linearity Test 48
Tes t Se tu p 49
+10 dBm Range (equivalent to +40 dBm range for 81628B) 50
Calculation 54
Noise Test 57
Return Loss Test 58
Relative Uncertainty due to Polarization (Optional Test) 60
Relative Uncertainty due to Interference (Optional Test) 62
Calculation Sheets 78
Cleaning Information 81
Cleaning Instructions for this Device 82
81000xA Optical Head Adapters 82
8162xx Optical Power Heads 82
Safety Precautions 83
Why is it important to clean optical devices? 84
What do I need for proper cleaning? 85
Standard Cleaning Equipment 85
Dust and shutter caps 85
Isopropyl alcohol 86
Cotton swabs 86
Soft tissues 87