Passive Optical Components
Attenuators
These devices are used to reduce the power of an optical signal to optimize transmission quality and bit transfer. Attenuators are available in fixed attenuation levels, ranging from 1 – 20 db, and are available in standard connector configurations.
Features:
- Available in standard connector types: SC, SCA, LC, LCA, FC, FCA, and ST
- Standard fixed attenuation levels 1 – 20 db
- High power light source durability
- Available in dual wavelengths 1310/1550 nm or ranges 1250 nm – 1625nm
Benefits:
- In line designs are easy to use
- High mode stability
- Precise attenuation and wavelengths available
- Portable and easily re-mated
Fiber Loopbacks
These devices are used to provide a return signal for fiber optic testing applications. Loop backs allow for circuit isolation, enhancing troubleshooting productivity and network restoration. Loop backs are available in all standard connector and cable types.
Circulators and Isolators
Circulators are used to separate optical signals that travel in opposite directions in an optical fiber. An optical circulator is a three-port device designed to allow optical signals entering any port exit from the next. This means that if light enters port 1 it is emitted from port 2, but if some of the emitted light is reflected back to the circulator, it does not come out of port 1, but instead exits from port 3. Circulators can be used to achieve bi-directional transmission over single fiber.
Fiber isolators are used in the networks to block out reflected and unwanted optic light. In fiber optic communication systems, optical light wave is reflected from any components like fiber optic connectors and receivers. Fiber optic isolator is such a device to prevent the propagation of back-reflected optical light.