Description
The Micron Optics Fiber Fabry-Perot Tunable Filter (FFP-TF) is a specialized tunable filter based on Fabry-Perot etalon technology. The FFP-TF passes wavelengths that are equal to integer fractions of the cavity (etalon) length; all other wavelengths are attenuated according to the Airy function.

The Micron Optics Fiber Fabry-Perot Tunable Filter follows the Airy function so closely that engineers can design it into their opto-electronic systems with a high degree of confidence that it will provide results very close to the theoretical mathematical model. Low loss, high isolation and accurate power or wavelength measurements are just a few of the characteristics resulting from an ideal Airy function

The key to the elegant design of the FFP-TF is the lensless fiber construction. There are no collimating optics or lenses, thus the FFP-TF achieves high finesse and maintains low loss and transmission profile. This design makes the FFP-TF a critical component to a broad range of applications. Through the etalon design,Micron Optics has eliminated the pitfalls of other Fabry-Perot component technologies, including misalignment, environmental sensitivity and extraneous modes.

Features
• High resolution for precise spectrum analysis
• Large dynamic range permits accurate measurements
• Efficient low loss design
• Tunable across S, C & L bands
• Wide ranges of user-specified parameters
• Thermally stable
• Vibration and shock resistant
• Small footprint
• Low power requirements
• Proven reliability, less than 80 FITS
• Qualified for Telcordia GR 2883

Applications
• Optical Performance Monitoring
• Tunable Optical Noise Filter
• Tunable Optical Add/Drop
• Swept Wavelength Lasers

Micron Optics has provided thousands of FFP tunable filters for a large variety of applications. For more than a decade, the Micron Optics Tunable Filter has proven its capabilities in WDM applications, and has satisfied the ever-increasing performance demands of the telecom market including Optical Network Monitoring, Signal Conditioning and Dynamic Networking and Transport. Additionally, the filter continually proves itself as the key enabling technology
for Micron Optics' line of world-class test instruments.

Optical Performance Monitoring.
Micron Optics FFP Technology is the base for the highest performance optical performance monitor available today, monitoring up to 400 channels in the C band alone. The high resolution, deep dynamic range and continuous smooth tuning combine to allow accurate dense channel analysis. For example,Micron Optics Finesse 2000 filters have a contrast factor of 62 dB.

Tunable Optical Noise Filtering & Channel Locking.
Micron Optics FFP Technology is used in telecom systems around the world for optical noise filtering and dynamic channel locking. A key attribute is the extreme low loss nature (to < 1 dB) of the filter and its reliable locking capability. Data from thousands of filters in the field has shown a projected reliability of less than 80 FITs. The resulting benefit is an extremely low bit error rate and high network receiver sensitivity.

Tunable Channel Drop for Ultra DWDM
(<25 GHz spacing). The rapid tuning and locking capabilities of Micron Optics FFP Technology enables reliable channel selection and dropping applications in dynamic optical networks. The high degree to which the FFP filters follow the Airy Function theory allows optical engineers to accurately design system performance parameters, without the overhead of allowing for imprecise measurements.

To assist in filter selection, three of the highest volume applications are listed below. These filters typically have short lead times. In addition to these standard filters, Micron Optics will be pleased to produce custom filters. Call or email our sales engineers to best match our filter specifications to your applications.

Note: a filter "configurator" program showing parameters such as loss, isolation, contrast factor, and ordering code is available upon request.

Specifications1