Page 12 - Fiber Bragg Gratings

Contents xi

8.6 Bragg grating based pulsed sources 380
8.7 Fiber grating resonant Raman amplifiers 383
8.8 Gain-flattening and clamping in fiber amplifiers 385
8.8.1 Amplifier gain equalization with fiber gratings 387
8.8.2 Optical gain control by gain clamping 391
8.8.3 Analysis of gain-controlled amplifiers 395
8.8.4 Cavity stability 396
8.8.5 Noise figure 397
References 398

Chapter 9 Measurement and Characterization of Gratings 409
9.1 Measurement of reflection and transmission spectra of
Bragg gratings 410
9.2 Perfect Bragg gratings 417
9.3 Phase and temporal response of Bragg gratings 418
9.3.1 Measurement of the grating profile 426
9.3.2 Measurement of internal stress 432
9.4 Strength, annealing, and lifetime of gratings 435
9.4.1 Mechanical strength 435
9.4.2 Bragg grating lifetime and thermal annealing 436
9.4.3 Accelerated aging of gratings 440
References 441

Index 447