Shanghai Yogel Communication Equipment Co., Ltd.
Fiber Optic Products for FTTx Solutions One-stop Service Supplier
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Fiber Bragg Grating Reflectors are engineered to reflect light back through the fiber when entering via connectors. These components can be used to create fiber interferometers or build low-power fiber lasers. They are particularly well-suited for accurately measuring back-reflection specifications in transmitters, amplifiers, and other optical devices.
Our fiber returners are available in single-mode (SM), polarization-maintaining (PM), and multimode (MM) fiber variants. The fiber ferrule features a protective silver-coated layer that delivers an average reflectivity of ≥97.5% across the 450 nm to maximum wavelength range. Encased in a φ9.8mm (0.39-inch) stainless steel housing, the ferrule's end connects to either a 2.0mm narrow-pin connector (FC/PC, compatible with SM/PM/MM fibers) or an FC/APC connector (compatible with SM/PM fibers). For PM fibers, the narrow pin is precisely aligned with the fiber's slow axis. Each jumper cable includes a protective cap to prevent dust or contaminants from adhering to the ferrule's end.
| project | metric | |||
| Type of optical fiber | SM600 | 780HP | SM980-5.8-125 | SMF-28 Ultra |
| wavelength coverage (nm) | 630～780 | 780～970 | 980～1550 | 1260～1625 |
| Modulation field diameter MFD (μm) | 3.6～5.3@633nm | 5.0±0.5@850nm | 5.3～6.4@980nm | 9.2±0.4@1310nm 10.4±0.5@1550nm |
| Insert loss Type. (dB) | 4 | 3 | 2 | 0.6 |
| cladding diameter (μm) | 125±1.0 | 125±1.0 | 125±1.0 | 125±0.7 |
| Coating diameter (μm) | 245±15 | 245±15 | 245±15 | 242±5 |
| numerical aperture NA | 0.10～0.14 | 0.13 | 0.13～0.15 | 0.14 |
| Type of connector | FC/PC or FC/APC | |||
| Maximum light power (mW) | 300 | |||
| Tail fiber length (m) | 1 | |||
polarization maintaining optical fibre
| project | metric | |||
| Type of optical fiber | PM630-HP | PM780-HP | PM980-XP | PM1550-XP |
| wavelength coverage (nm) | 620～850 | 770～1100 | 970～1550 | 1440～1625 |
| Modulation field diameter MFD (μm) | 4.5±0.5@630nm | 5.3±1.0@850nm | 6.6±0.5@980nm | 10.1±0.4@1550nm |
| Insert loss Max. (dB) | 2.4 | 2.0 | 1.4 | 1.0 |
| Minimum light extinction ratio (dB) | 18 | 18 | 22 | 22 |
| cladding diameter (μm) | 125±2 | 125±2 | 125±1 | 125±2 |
| Coating diameter (μm) | 245±15 | |||
| numerical aperture NA | 0.12 | |||
| Type of connector | FC/PC or FC/APC | |||
| Maximum light power (mW) | 300 | |||
multimode fibre
| project | metric |
| Type of optical fiber | FG105LCA |
| wavelength coverage (nm) | 400～2400 |
| Fiber diameter (μm) | 105+1/-3 |
| cladding diameter (μm) | 125+1/-2 |
| Coating diameter (μm) | 250±10 |
| numerical aperture NA | 0.22±0.02 |
| Type of connector | FC/PC |
| Maximum light power (mW) | 300 |
| Tail fiber length (m) | 1 |
