Fibre Optic Circulator 1310 or 1550 nm

About the Product

The PBN polarisation independent optical circulator is a multi-port passive device, which routes one incoming optical signal from port 1 to port 2 and another signal from port 2 to port 3. A 4 port version of the circulator also routes an incoming signal from port 3 to port 4.

The circulator features low insertion loss, low cross talk, high isolation, a large bandwidth with choices for 1310 nm or 1550 nm centre wavelengths, and low polarisation dependent loss.

The circulator is used in reflectometers and distance measuring equipment, but also finds many useful applications in full duplex bidirectional data transmission systems, over one fibre core.

The best performance is achieved with angle polished connectors (APC). They provide a very high reflection loss, in the same order of magnitude as the isolation of the circulator.

The unit comes in a tubular housing with connectorised pigtails or with bare fibre tails for direct splicing into the equipment.

Features

• High optical isolation.
• High directivity.
• 80 nm useable bandwidth.
• Available for 1310 nm or 1550 nm centre wavelengths.
• Low cross talk.
• Low insertion loss.
• Low polarisation dependent loss.
• Epoxy free optical path.
• Available with 0.25 mm or 0.9 mm pigtails.
• Choice of optical connectors.
• Available in the standard 3 port or 4 port versions.