Page 14 - High Power Laser Handbook

Co n t e n t s xiii

16.4.2 Gain-Staged MOPAs . . . . . . . . . . . . . 483
16.4.3 Polarization-Maintaining MOPAs
and Wavelength Conversion . . . . . . 488
16.4.4 Eye-Safe, Pulsed-Fiber Laser Sources . . . 491
16.5 Conclusions and Outlook . . . . . . . . . . . . . . . . 493
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495
17 High-Power Ultrafast Fiber Laser Systems
Jens Limpert, Andreas Tünnermann . . . . . . . . . . . . . . . . 499
17.1 Introduction and Motivation . . . . . . . . . . . . . 499
17.2 Nonlinear Effects as Basic Limitations
of Ultrashort Pulse Amplifi cation in
Rare-Earth-Doped Fibers . . . . . . . . . . . . . . . . 501
17.3 High-Repetition-Rate Gigawatt Peak
Power Fiber Laser System . . . . . . . . . . . . . . . . 505
17.4 Peak Power and Pulse Energy Scaling
Considerations . . . . . . . . . . . . . . . . . . . . . . . . . 508
17.5 Average Power Scaling of Ultrashort Pulse
Fiber Systems . . . . . . . . . . . . . . . . . . . . . . . . . . 512
17.6 Conclusion and Outlook . . . . . . . . . . . . . . . . . 513
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 514
18 High-Power Fiber Lasers for Industry and
Defense Michael O’Connor, Bill Shiner . . . . . . . . . . . 517
18.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 517
18.2 Fiber Laser Engineering . . . . . . . . . . . . . . . . . 518
18.3 Power Scaling of Broadband Multimode
Fiber Lasers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 520
18.4 Power Scaling of Broadband Single-Mode
Fiber Lasers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 523
18.5 High-Power Fiber Lasers in Industrial
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 526
18.6 Defense Applications of High-Power
Fiber Lasers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 528
18.6.1 Fiber Lasers for Strategic versus Tactical
Directed-Energy Applications . . . . . . . . 528
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530

Part 5 Beam Combining

19 Beam Combining Charles X. Yu, Tso Yee Fan . . . . . 533
19.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 533
19.1.1 Motivation for Beam Combining . . . 533
19.1.2 Beam-Combining Performance
Metrics . . . . . . . . . . . . . . . . . . . . . . . . . 534