Helica™ In - Fiber Linear Polarizer The Helica™ In-Fiber Polarizer (Helica™ IFP), an all-glass polarizer, provides a high extinction ratio over a broad spectral range at a price well below other in-line polarizers. The Helica™ IFP can be manufactured to meet your spectral and performance specifications, including central wavelength, bandwidth and extinction ratio requirements. Specifications and typical spectra for polarizers with central wavelengths at 1550, 1310, 1064 and 980 nm, our standard products, are shown below. Helica™ IFPs addressing many other wavelength ranges have been supplied. Please speak with us about your specific needs. Helica™ IFPs have also been used in a variety of sensor applications, one of which is illustrated below. Harsh environment requirements can also be accommodated, including chemical, temperature and radiation resistance. Highly stable operating performance above 200 °C has been demonstrated. Wide varieties of input and output fibers as well as connectors are available to meet your needs. Applications: Polarization measurement and control Coherent transmission Optical sensors Test and measurement instrumentation Navigation instrumentation R & D Specifications: PROPERTIES Central Wavelength1 980 nm, 1064 nm, 1310 nm, 1550 nm Bandwidth > 50 nm Extinction Ratio2 >30 dB Typical Insertion Loss <1 dB available for 1550 nm (and other select wavelengths); otherwise <2 dB Polarizer Length >42 ± 2 mm Package Style Flexible stainless steel microtube (28 cm long) under 900 µm furcation tubing Pigtails3 PM (Panda) or SM, 1 m, inside 900 µm furcation tube Operating Temperature -40C to +85C Storage Temperature -70C to +85C 1Other wavelengths available upon request 2Typically the passing polarization travels along the slow axis; can be tailored upon request 3Connectorization available upon request Exemplary Spectra: 980 nm 1060 nm 1310 nm 1550 nm   Polarizer as Pressure Sensor: The schematic below, left, demonstrates usage of a chiral polarizer as a pressure sensor. The input and output fibers are inexpensive conventional single mode fibers (which could be miles long). The graph on the right shows transmission through the sensor as the fiber is loaded, demonstrating a dynamic range greater than 30 dB. All information contained herein is believed to be accurate and is subject to change without notice. No responsibility is assumed for its use. Chiral Photonics, Inc., its subsidiaries and affiliates, or manufacturer, reserve the right to make changes, without notice, to product design, product components, and product manufacturing methods. Some specific combinations of options may not be available. Please contact Chiral Photonics, Inc. for additional information. Printer friendly PDF version