a

m

fiber core radius

(3.1)

a

none

beam divergence ratio

(8.108)

a

none

round-trip intracavity field amplification factor

(11.5)

a _E, a _M

none

asymmetry factors for TE and TM modes

(2.48), (2.49)

A,

W ^1/2

mode amplitude

(4.45), (4.48)

A _?

W ^1/2

amplitude of mode ?; A _{q , ?}

(4.23)

A ₂₁

s ^?1

Einstein A coefficient

(10.19)

A, A _e, A _h

s ^?1

Shockley Read recombination coefficients

(12.48)

m ²

area; _eff, _q,

(9.103)f, (12.118)

ABD

bit m ^?2

areal bit density

(7.55)

b

m

confocal parameter of Gaussian beam, b = 2 z _R

(1.134)f

b

none

normalized guide index

(2.47)

b

none

linewidth enhancement factor

(13.61)

B,

W ^1/2

mode amplitude

(4.45), (4.49)

B

Hz

bandwidth; B _o

(7.57), (14.11)

B

m ³ s ^?1

bimolecular carrier recombination coefficient

(12.49), (13.5)

B ₁₂, B ₂₁

m ³ J ^?1 s ^?1

Einstein B coefficients

(10.17), (10.18)

B

T

real magnetic induction in the time domain

(1.2)

B, B

T

complex magnetic induction

(1.40)

c

m s ^?1

speed of light in free space

(1.38)

c _{? ?}

none

overlap coefficient between modes ? and ?

(4.41)

c _ijkl, c _?, c

m ² A ^?2

quadratic magneto-optic coefficient

(7.13), (7.15)

cn( z, m)

none

Jacobi elliptic function

(9.271)

C

F

capacitance; C _d