FOCC Fiber Optic Reflective-Coated Patch Cables are designed to reflect light input through the connector backward through the fiber. They can be used to create a fiber interferometer or to build a low-power fiber laser. These retroreflectors are ideal for determining back reflection specifications for transmitters, amplifiers, and other devices.
● Single Mode, Polarization-Maintaining, or Multimode Fiber Optic Retroreflector
● Wavelengths from 450 nm to 2400 nm
● FC/PC or FC/APC Connector Versions Available



Features
● SM, PM, or MM Fiber Optic Retroreflector Patch Cables
● One End has Protected Silver Mirror Coating
● Ravg ≥ 97.5% from 450 nm to Fiber's Upper Wavelength Limit
● 2.0 mm Narrow Key FC/PC or FC/APC Versions Available
● Suitable for Laser Power up to 300 mW
● 1 m Long Cables


Our retroreflectors are available with single mode (SM), polarization-maintaining (PM), or multimode (MM) fiber. The ferrule on one end of the fiber is coated with a protected silver layer to provide an average reflection of ≥97.5% for light from 450 nm to the fiber's upper wavelength limit. This end is encased in a Ø9.8 mm (0.39") stainless steel housing that is engraved with the part number. The other end has either an FC/PC (available with SM, PM, or MM fiber) or FC/APC (available with SM or PM fiber) 2.0 mm narrow key connector. For PM fibers, the narrow key is aligned to the slow axis.
Single Mode Retroreflectors
| Item # | Wavelength Range |
MFD | Insertion Loss (Typ.) |
Cladding Diameter |
Coating Diameter |
NA | Connector |
|---|---|---|---|---|---|---|---|
| P1-630R-P01-1 | 630 - 780 nm | 3.6 - 5.3 µm @ 633 nm |
4 dB | 125 ±1.0 µm | 245 ± 15 µm | 0.10 - 0.14 | FC/PC |
| P5-630R-P01-1 | FC/APC | ||||||
| P1-780R-P01-1 | 780 - 970 nm | 5.0 ± 0.5 µm @ 850 nm |
3 dB | 125 ± 1 µm | 245 ± 15 µm | 0.13 | FC/PC |
| P5-780R-P01-1 | FC/APC | ||||||
| P1-1060R-P01-1 | 980 - 1550 nm | 5.3 - 6.4 µm @ 980 nm |
2 dB | 125 ± 1 µm | 245 ± 15 µm | 0.13 - 0.15 | FC/PC |
| P5-1060R-P01-1 | FC/APC | ||||||
| P1-SMF28ER-P01-1 | 1260 - 1625 nm | 9.2 ± 0.4 µm @ 1310 nm 10.4 ± 0.5 µm @ 1550 nm |
0.6 dB | 125 ± 0.7 µm | 242 ± 5 µm | 0.14 | FC/PC |
| P5-SMF28ER-P01-1 | FC/APC |
Polarization-Maintaining Retroreflectors
| Item #a | Wavelength Range |
MFDb | Insertion Loss (Max)c |
Extinction Ratio (Min) |
Cladding Diameter |
Coating Diameter |
NA | Connectord |
|---|---|---|---|---|---|---|---|---|
| P1-630PMR-P01-1 | 620 - 850 nm | 4.5 ± 0.5 µm @ 630 nm |
2.4 dB | 18 dB | 125 ± 2 µm | 245 ± 15 µm | 0.12 | FC/PC |
| P5-630PMR-P01-1 | FC/APC | |||||||
| P1-780PMR-P01-1 | 770 - 1100 nm | 5.3 ± 1.0 µm @ 850 nm |
2.0 dB | 18 dB | 125 ± 2 µm | 245 ± 15 µm | 0.12 | FC/PC |
| P5-780PMR-P01-1 | FC/APC | |||||||
| P1-1060PMR-P01-1 | 970 - 1550 nm | 6.6 ± 0.5 µm @ 980 nm |
1.4 dB | 22 dB | 125 ± 1 µm | 245 ± 15 µm | 0.12 | FC/PC |
| P5-1060PMR-P01-1 | FC/APC | |||||||
| P1-1550PMR-P01-1 | 1440 - 1625 nm | 10.1 ± 0.4 µm @ 1550 nm |
1.0 dB | 22 dB | 125 ± 2 µm | 245 ± 15 µm | 0.12 | FC/PC |
| P5-1550PMR-P01-1 | FC/APC |
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