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MIL-HDBK-415 Design Handbook For Fiber Optic Communications SystemsThe purpose of this handbook is to provide uniform Department of Defense \(DoD\) guidelines for communication engineers, and installation, operation. and maintenance personnel working with fiber optic communications systems. This handbook supports MIL-STD-188-111, Interoperability, and Performance Standards for Fiber Optic Communications Systems. Emphasis is on the importance of the major technological advancements in telecommunications, as well as networks and systems, rather than on components and hardware. However, the text does deal with the major components of fiber optic systems, including transmitters, receivers, fiber cable, and associated hardware. Further, it provides practical how-to guidance, including generalized real world examples on implementing the requirements in MIL-STD-188-111.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17

MIL-HDBK-415A

LIST OF APPENDICES - continued

APPENDIX

PAGE

C. 3

SNR for PIN photodiodes ..........................................................................................C-1

C.3.1

Adjustment for modulation index ..............................................................................C-1

C.3.2

Adjustment for equivalent load resistance.................................................................C-3

C.3.3

Adjustment for wavelength........................................................................................C-3

C.4

SNR for avalanche photodiodes.................................................................................C-3

C-4.1

Adjustment for modulation index ..............................................................................C-3

C.4.2

Adjustment for APD noise factor ..............................................................................C-3

C.4.3

Adjustment for wavelength........................................................................................C-3

C.5

Bandwidth expansion techniques...............................................................................C-6

C-5.1

Frequency modulation ...............................................................................................C-6

C.5.2

Pulsed analog modulation ..........................................................................................C-6

APPENDIX D - POWER PENALTY BUDGET

D. I

Introduction ............................................................................................................... D-1

D.2

Transmitter extinction ratio....................................................................................... D-1

D.3

Fiber dispersion coefficient....................................................................................... D-2

D.4

System rise time or bandwidth.................................................................................. D-8

D.5

System jitter .............................................................................................................. D-9

D.6

Modal noise............................................................................................................... D-9

D.7

Mode partition noise ................................................................................................. D-9

D. 8

Laser frequency chirping ........................................................................................ D - 1

D.9

Reflection feedback ................................................................................................ D-12

APPENDIX E - SONET (SYNCHRONOUS OPTICAL NETWORK)

APPENDIX F - BLANK WORKSHEETS

LIST OF FIGURES

FIGURE

PAGE

4-1

Simplified fiber optic communications system............................................................14

5-1

Fiber index profiles ......................................................................................................20

5-2

Wavelength versus fiber attenuation............................................................................23

5-3

Cable strength members and shields............................................................................26

5-4

Loose fiber covering types...........................................................................................27

5-5

Types of loose tube cables ...........................................................................................28

5-6

Types of ribbon and slotted cables...............................................................................29

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