Table 3.
Splice losses from PBFs to standard single-mode fibers or from standard single-mode fibers to nonlinear PCFs.
| Standard single-mode fiber | Micro-structured fiber (nature) | Core diameter (μm) | Pitch Λ (μm) | Relative hole size d/Λ (μm) | Mode-field diameter (μm) at λ (nm) | Related numerical aperture | Splice loss (dB) | Reference |
|---|---|---|---|---|---|---|---|---|
| SMF-28 | HC19-1550-1 (PBF) | 20 | 3.9 | >0.9 | 13 (1550) | 0.13 | >2 | [129] |
| SMF-28 | HC-1550-02 (PBF) | 10.9 | 3.8 | >0.9 | 7.5 (1550) | 0.12 | 1.3–2.5 | [130, 131] |
| PM980-HP | HC-1060-02 (PBF) | 10 | 2.75 | >0.9 | 6.5 (1060) | - | 2.19 | [132] |
| SMF-28 | LMA-5 (PCF) | 5.5 | 2.9 | 0.44 | 4.1 (1550) | 0.23 | 0.90 | [131] |
| SMF-28 | NL-3.3-880 (PCF) | 3.4 | 3.0 | >0.89 | 3.2 (1550) | 0.41 | 2.5 | [131] |
| SMF-28 | Unknown (PCF) | 2.5 | - | >0.95 | - (1550) | >0.9 | 1.55–3.1 | [133, 134] |
| SMF-28 | NL-2.3-1555 (PCF) | 2.3 | 1.6 | 0.5 | ~ 3 (1550) | ~0.5 | 0.25–0.6 | [135] |
| SMF-28 | NL-1550-P-1 (PCF) | 2.1 | - | - | 2.8 (1550) | 0.4 | 0.9 | [136] |
| HI-1060 | Unknown (PCF) | 2.0 | 2.3 | 0.83 | 1.8 (980) | - | 0.55 | [137] |
| SMF-28 | Unknown (PCF) | 1.27 | - | >0.95 | 1.5 (1550) | >0.9 | 1.3 | [138] |
Note: for SMF-28, core diameter is 8.3 μm, mode-field diameter (1550 nm) is 10.4 μm, and numerical aperture is 0.14.