THE ALL-FIBER(R) COMPANY OPTICAL AMPLIFICATION GAIN FLATTENING FILTERS ITF Gain Flattening Filters, based on ITF All-Fiber(R) technology, can be custom-designed to flatten almost any EDFA or Raman gain curve. With a combination of superior optical properties and packaging reliability, they are ideally suited for high-performance next generation systems such as 40 Gbps and ultra-long haul transmission systems. Through advanced design and manufacturing techniques, ITF has perfected the tapered fiber filter technology to produce clean filters with smooth spectral response maintaining the inherent properties of the optical fiber. As the integrity of the optical signal is preserved without any discontinuity or degradation throughout the optical path, ITF Gain Flattening Filters have unique advantages, such as low insertion loss and polarization dependent loss, negligible dispersion and back reflection and no induced polarization mode dispersion. With proprietary accurate modeling tools and a well-controlled manufacturing process, ITF offers Gain Flattening Filters with highly reproducible and consistent spectral responses. Furthermore, ITF's All-Fiber(R) technology allows for a high degree of design flexibility, fast turn-around prototyping and large-scale production. NO RIPPLE ~ NO INDUCED PMD ~ LOW DISPERSION ~ HIGHLY REPRODUCIBLE AND CONSISTENT RESPONSE ~ OPTICAL AMPLIFICATION GAIN FLATTENING FILTERS TECHNICAL DATA ALL-FIBER (R) GAIN FLATTENING FILTER SPECIFICATIONS Parameter Typical Value Operating Wavelength Range 1400 to 1700 nm Maximum Attenuation 20 dB Component Excess Loss1 < 0.5 to 1.0 dB Error Function < 0.1 to 0.25 dB 1 Polarization Dependent Loss < 0.1 dB Polarization Mode Dispersion < 0.05 ps Optical Return Loss > 60 dB Directivity > 65 dB Thermal Stability < 2 pm/C Operating Temperature -5 to 70C Storage Temperature -40 to 85C 1 [1] Exact values depend on gain shape bandwidth and amplitude. To find out how ITF Optical Technologies can help meet your need of increased optical amplification efficiency in high Typical GFF Response 1.0 capacity transmission systems, 0.0 contact us now for additional information -1.0 on our Gain Flattening Filters. -2.0 -3.0 Transmission [dB] -4.0 -5.0 -6.0 ITF OPTICAL TECHNOLOGIES -7.0 1530 1535 1540 ~ Wavelength [nm] 1545 1550 1555 1560 175 Montpellier Blvd. Saint-Laurent (Quebec) H4N 3L2, Canada Tel.: 514.744.1044 ~ Fax: 514.744.2080 1.888.922.1044 www.itfoptical.com Target GFF Error Function