User`s guide

Agilent 81618A/9A and Agilent 81623B/4B/6B/8B Optical Heads, Fourth Edition

Ta b l e o f Co nte n ts

Getting Started with Optical Heads 9

Safety Considerations 10

Safety Symbols 10

Input Power Limitations 11

Initial Inspection 11

Line Power Requirements 11

Operating Environment 12

Storage and Shipment 12

What is an Optical Head? 13

Analog Output 15

Optical input 15

Heat Sink for 81628B optical Head 16

Attaching the heat sink to the 81628B Optical Head 16

Applicable adapters 16

Mounting Instructions 17

Accessories 19

Modules and Options 20

Connector Adapters - Reference List 22

Specifications 23

Definition of Terms 24

Linearity 24

Averaging Time 25

Linewidth 25

Noise 25

Reference conditions 25

Power range 26

Wavelength range 26

Relative uncertainty (spectral ripple) due to interference 26

Relative uncertainty due to speckle noise 27

Relative uncertainty due to polarization 27

Return loss 28

Spectral width of optical source 28