MIL-HDBK-415A
TABLE OF CONTENTS - continued
SECTION
PAGE
6.1.1.2
ELED ...........................................................................................................................41
6.1.2
LD ................................................................................................................................41
6.1.2.1
LD operation ................................................................................................................41
6.1.2.2
Characteristics ..............................................................................................................41
6.1.3
Superluminescent diode (SLD)....................................................................................43
6.1.4
Comparison of LED and LD transmitters....................................................................43
6.1.5
Laser diode resonant modes.........................................................................................46
6.1.6
Transmitter selection....................................................................................................46
6.2
Receivers ......................................................................................................................47
6.2.1
Photo detectors.............................................................................................................47
6.2.2
Receiver selection ........................................................................................................47
6.2.2.1
Sensitivity ....................................................................................................................47
6.2.2.2
Dynamic range .............................................................................................................49
6.2.2.3
Maximum bit rate and bandwidth ................................................................................49
6.2.2.4
Responsitivity ..............................................................................................................49
6.3
Repeaters, regenerators, and optical amplifiers ...........................................................50
6.3.1
Repeaters ......................................................................................................................50
6.3.2
Regenerators ................................................................................................................50
6.3.3
Optical amplifiers.........................................................................................................50
CHAPTER 7 - OTHER COMPONENTS
7.1
Connectors ...................................................................................................................51
7.1.1
Connector types ...........................................................................................................51
7.1.2
Selection considerations...............................................................................................51
7.2
Splices ..........................................................................................................................55
7.2.1
Mechanical splices .......................................................................................................55
7.2.1.1
Grooved-plate, multifiber splice ..................................................................................55
7.2.1.2
Multirod alignment splice ............................................................................................55
7.2.1.3
Elastomer splice ...........................................................................................................55
7.2.2
Fusion splices...............................................................................................................57
7.2.3
Methods of reducing fiber end loss..............................................................................57
7.2.4
Fiber end preparation ...................................................................................................57
7.2.5
Splice enclosure ...........................................................................................................57
7.3
Couplers .......................................................................................................................57
7.3.1
T couplers.....................................................................................................................58
7.3.2
Star couplers.................................................................................................................58
7.4
Optical attenuators .......................................................................................................60
vii
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