MIL-HDBK-415A
TABLE OF CONTENTS continued
SECTION
PAGE
11.18
Tactical link design example .....................................................................................112
CHAPTER 12 FIBER OPTICS TESTING
12.1
Introduction ................................................................................................................117
12.2
Scope ..........................................................................................................................117
12.3
Relationship to other chapters....................................................................................117
12.4
Test methods and test equipment...............................................................................117
12.5
Component level test procedures ...............................................................................117
12.5.1
Optical power.............................................................................................................117
12.5.2
Central wavelength and spectral width (bandwidth) .................................................118
12.5.3
Receiver sensitivity and maximum receiver input.....................................................120
12.5.4
Passive components insertion loss .............................................................................125
12.5.5
Passive component return loss ...................................................................................127
12.6
Fiber cable test procedures.........................................................................................127
12.6.1
Fiber loss (attenuation) ..............................................................................................127
12.6.2
Fiber dispersion and bandwidth .................................................................................130
12.6.3
Fiber cable mechanical tests ......................................................................................135
12.7
System tests................................................................................................................135
12.7.1
OTDR.........................................................................................................................135
12.7.2
BER, system power margin, or bit rate tolerance ......................................................139
12.7.3
System jitter and waveform distortion.......................................................................142
12.8
System performance monitoring................................................................................144
CHAPTER 13 SAFETY
13.1
General safety concerns .............................................................................................149
13.2
Central purpose of laser safety...................................................................................149
13.3
Required laser safety standards..................................................................................149
13.4
Recommended laser safety guides .............................................................................149
13.5
Laser safety practices and procedures........................................................................149
13.6
SG parameters............................................................................................................150
13.7
Other safety concerns.................................................................................................150
13.8
Applicable DoD documents.......................................................................................150
13.9
Electrical hazards and fiber........................................................................................151
13.10
Materials ....................................................................................................................151
13.11
Safety and testing.......................................................................................................151
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