Chapter 10 Sensing with Optics
ERRATA
1. Add the following missing references to Chapter 10.
Ref. 10.47, Eric Udd, Ed., “Fiber Optic Sensors,” John Wiley & Sons, Inc., New York, 1991.
Ref. 10.48, T. Kurashima, T. Horiguchi, H. Izumita, S. Furukawa, and Y. Koyamada, “Brillouin
Optical-Fiber Time Domain Reflectometry,” IEICE Trans. Commun. Vol. E76-B, pp.
382-390, 1993.
Ref. 10.49, H. Chou, W. Sorin, “Method and apparatus for calibrating a polarization independent
optical coherence domain reflectometer,” U.S. Patent No. 5,268,741, 1993.
2. Use the following updated figures to replace the corresponding original figures.
Fig. 10.4
Fig. 10.7
Fig. 10.12
Fig. 10.13
Fig. 10.14
Fig. 10.17
Fig. 10.24
Fig. 10.26
Fig. 10.28
3. Update following figure captions
Fig. 10.4 Illustration of allowed polarization states. [47]
Fig. 10.5 An illustration of optical experimental setup to determine all four components of
Stokes vector. [47]
Fig. 10.6 Poincare sphere. [47]
Fig. 10.9 Machelson interferometer-based fiber-optic sensor. [47]
Fig. 10.12 Illustration of phorsphor temperature sensor. [20]
1
Chapter 10 Sensing with Optics
Fig. 10.13 Schematic diagram of cross-reference black-body radiation/fluorescent temperature
sensor. [22]
Fig. 10.14 Principle of optical time-domain reflectometry based on Rayleigh scattering [47].
Fig. 10. 16 Basic configuration of optical time-domain reflectometry based on Brillouin
scattering. [29]
Fig. 10.17 An illustration of Brillouin scattering-frequency shift under different longitudinal
strain conditions. [48]
Fig. 10. 18 An illustration of optical setup for optical frequency-domain reflectometry. [30]
Fig. 10. 19 An illustration of the implementation of the polarization-diversity receiver. [49]
Fig. 10.22 An illustration of a uniform fiber-Bragg grating and its wavelength-selective
reflection property. [34]
Fig. 10.24 An illustration of a fiber Bragg grating-based point sensor. [42]
Fig. 10.26 Detection of wavelength shift of fiber Bragg grating by using unbalanced fiber
Mach-Zehnder interferometer. [41]
Fig. 10.27 A configuration of combining WDM/TDM in a fiber Bragg grating-based
quasi-distributed sensor. [42]
Fig. 10.28 A schematic view of the bridge sensor. [44]
2
Chapter 10 Sensing with Optics
 0
  180
  45
  270
  90
  360
Fig. 10.4
3
Chapter 10 Sensing with Optics
Polarization maintaining
fiber
External stress
Photodetector
Light source
Analyzer
Polarizer
Fig. 10.7
4
Chapter 10 Sensing with Optics
Temperature
chamber
UV pump light source
coupler
Sensor head
Filter rejecting UV
light
Fluorescent light
detector
Fig. 10.12
5
Chapter 10 Sensing with Optics
Phosphor
lifetime
Reference
Blackbody
radiation
Temperature °C
Fig. 10.13
6
Chapter 10 Sensing with Optics
Slope αi+Δα
Fiber end
Slope αi
reflection
Log(Ps)
αi
Pulsed
laser
T=2nz/c
coupler
Continuous sensing
fiber
detecto
r
Localized
perturbation
(loss)
Fig. 10.14
7
Chapter 10 Sensing with Optics
Ref. fiber
Test fiber
(frequency shift due to the longitudinal strain)
119Mz
Frequency difference (GHz)
Fig. 10.17
8
Chapter 10 Sensing with Optics
Broadband or
tunable source
coupler
Bragg grating
Reflection
spectrum
Optical spectral
analyzer (OSA)
Fig. 10.24
9
Chapter 10 Sensing with Optics
Broadband or
tunable source
coupler
Bragg
grating
coupler
Unbalanced
MachZehnder
interferometer
coupler
Photodetector
Fig. 10.26
10
Chapter 10 Sensing with Optics
Bridge
cables
Position of
optical-fiber
Bragg grating
sensors
Fig. 10.28
11