- Extinction Ratio (ER) Measurements of Polarization Maintaining (PM) Fibers
- Alignment of PM Fiber to Connector Key
- Alignment of PM Fiber to Laser Source
The ERM100 is an extinction ratio meter based on the rotating polarizer technique. This benchtop device offers a fast and simple way to measure the ER of Polarization Maintaining (PM) fibers. It is an easy-to-use device that may be utilized in many applications where the alignment of PM fibers is required.
How It Works
The ERM100 Extinction Ratio Meter contains a rotating polarizer followed by a detector, which generates a photocurrent. In general, this photocurrent will be a sinusoidal function in time with a DC offset. By simultaneously analyzing the DC offset and the depth of modulation, the meter is able to determine the degree to which the light field is linearly polarized, thereby yielding the extinction ratio.
This benchtop instrument is an easy to use measurement device for any kind of PM fiber alignment application. A set of buttons and the LCD on the front panel allow quick adjustments and measurement procedure. Any PM alignment task can be performed efficiently.
The ERM100 is factory calibrated and can measure the ER, the misalignment angle, and the power. It can also be computer controlled via a USB connection. Drivers for LabVIEW™, LabWindows™/CVI™, MSVC, and Borland C are included.
Each unit comes with the meter, a USB cable, software CD with LabVIEW™ and LabWINDOWS™CVI Driver Set, and a manual.