Appendix E
List of Important Greek Symbols
Symbol
Definition
α
Refractive index profile shape
α
Optical fiber attenuation
α
Laser linewidth enhancement factor
α s (λ)
Photon absorption coefficient at a wavelength λ
β
Mode propagation factor
β 3
Third-order dispersion
Optical field confinement factor
Core-cladding index difference
L
Array waveguide path difference
ν B
Brillouin linewidth
ν opt
Optical bandwidth
η
Light coupling efficiency
η
Quantum efficiency
η ext
External quantum efficiency
η int
Internal quantum efficiency
θ A
Acceptance angle
λ
Wavelength
Period of a grating
Hole spacing or pitch of a PCF
λ B
Bragg wavelength
λ c
Cutoff wavelength
ν
Frequency
σ dark
Detector dark noise current variance
σ s
Signal current variance
(continued)
© The Editor(s) (if applicable) and The Author(s), under exclusive license
to Springer Nature Singapore Pte Ltd. 2021
G. Keiser, Fiber Optic Communications,
https://doi.org/10.1007/978-981-33-4665-9
639
List of Important Greek Symbols
Symbol
Definition
α
Refractive index profile shape
α
Optical fiber attenuation
α
Laser linewidth enhancement factor
α s (λ)
Photon absorption coefficient at a wavelength λ
β
Mode propagation factor
β 3
Third-order dispersion
Optical field confinement factor
Core-cladding index difference
L
Array waveguide path difference
ν B
Brillouin linewidth
ν opt
Optical bandwidth
η
Light coupling efficiency
η
Quantum efficiency
η ext
External quantum efficiency
η int
Internal quantum efficiency
θ A
Acceptance angle
λ
Wavelength
Period of a grating
Hole spacing or pitch of a PCF
λ B
Bragg wavelength
λ c
Cutoff wavelength
ν
Frequency
σ dark
Detector dark noise current variance
σ s
Signal current variance
(continued)
© The Editor(s) (if applicable) and The Author(s), under exclusive license
to Springer Nature Singapore Pte Ltd. 2021
G. Keiser, Fiber Optic Communications,
https://doi.org/10.1007/978-981-33-4665-9
639