Table 1 Characteristics of the Brillouin gain spectra of vector modes.
From: The Brillouin gain of vector modes in a few-mode fiber
Mode | Brillouin frequency shift ν B (GHz) | Effective refractive index n eff | Modal separation Δn eff | Brillouin gain linewidth Δν B (MHz) | Brillouin gain threshold (dBm) |
|---|---|---|---|---|---|
LP01 | 9.2136 ± 0.0003 | 1.46443 ± 4 × 10−5 | 23.54 ± 0.32 | 14.4 | |
TE01 | 9.1820 ± 0.0003 | 1.45942 ± 5 × 10−5 | (5.0 ± 0.1) × 10−3 | 18.02 ± 0.69 | 21.0 |
HE21 | 9.1783 ± 0.0003 | 1.45882 ± 5 × 10−5 | (5.9 ± 0.9) × 10−4 | 18.83 ± 0.40 | 21.3 |
TM01 | 9.1742 ± 0.0003 | 1.45816 ± 5 × 10−5 | (6.5 ± 0.7) × 10−4 | 21.01 ± 0.36 | 18.3 |
