Table 2 Parameters value

From: Functional Yb-doped fiber with a bat-type refractive index distribution for beyond kilowatt all-fiber single-frequency laser amplification

Parameter

Value

Parameter

Value

ΔL1

19 μm

Δn1

0.0001

ΔL2

35 μm

Δn2

0.0003

ΔL3

40 μm

Δn3

−0.0005