In response to customer requests for low profile polarization controllers for system integration, General Photonics made a special effort to design this third generation polarization controller, the PolaRITE III, with significantly reduced height and size. The height reduction is especially advantageous for integration in test equipment, fiber sensors, fiber lasers and optical network modules. Due to a special athermal design, the temperature stability is also significantly improved over our early version PolaRITE II. As with our other PolaRITE products, the PolaRITE III's unique all fiber construction essentially eliminates insertion loss and back reflection. Combined with General Photonics’ miniature piezo driver card, it can be controlled either by a digital or analog signal to obtain any desired polarization output from an arbitrary input polarization state.