Lightwaves2020 Polarisation Controllers

High Speed Polarisation Controller

High Speed Polarisation Controller

The Lightwaves2020’s high-speed polarisation controller (PC) is based on novel optical material offering fast response in ms, in contrast with conventional polarisation controllers with speed in ms. The dramatic increase in response speed enables the new polarisation controller suitable for demanding 40Gbs PMDC application as well as polarisation Mux / DeMux. In addition, the new high-speed polarisation controller is ideal for fibre sensing in optical security, spectroscopy and polarisation dependent imaging in biomedical applications.  An optional driver-PCB, on which the polarisation controller is mounted, is provided. The device is driven by 0-5VDC voltage to produce 0 - p phase retardation of polarisation state. The high-speed polarisation controller (PC) has options of three or four cell design. The fourth cell is added for faster searching and controlling.

BBN International supplies Lightwaves2020 high speed polarisation controller
High Speed Polarisation Rotator

High Speed Polarisation Rotator

The Lightwaves2020’s high-speed Polarisation Rotator is based on novel optical material offering fast response in µs. It can continuously rotate polarisation direction of input light beam by applying electrical field. The dramatic increase in response speed enables the new polarisation rotator for demanding 40Gbs application. An optional driver-PCB, on which the polarisation rotator is fixed, is provided.

BBN International supplies Lightwaves2020 high speed polarisation rotator
Lightwaves2020 Liquid Crystal Polarisation Controller

Liquid Crystal Polarisation Controller

Lightwaves2020's polarisation controller is based on liquid crystal technology. It consists of three or four liquid crystal retarders with their fast optical axes oriented at 0° or 45°, which have the same functionality as variable waveplates. Theoretically, only three liquid crystals retarders are needed to transform an arbitrary input state of polarisation into any desired output polarisation state. The fourth one is added for fast searching, if necessary. The control over the state of polarisation is achieved by individually changing the voltages applied to each retarder, which controls the retardations.
Sealed in a mini 10-pin DIN package with dimensions of 13.8x7.5x8.0mm, Lightwaves2020's polarisation controller provides an easy-mounting solution for many applications. In addition, the device and the thermal sensor can be integrated in the same package for close-loop control, which stabilises the thermal performance. The PC is Telcordia compliant.

BBN International supplies Lightwaves2020 polarisation controller

-