Passive Components & Modules Hybrid Passive Components for Long Haul/UHL
Gain Flattening Hybrids (PDF, 0.19 MB)
Gain flattening filters (GFFs) are used in amplifiers to create an output where the spectral power is the same at any wavelength. JDSU thin-film filter-based GFF designs offer an excellent match to the target loss profile with a low excess loss, even for exceptionally deep and steep profiles. This product family can combine up to three functional components: the GFF, a polarization independent isolator, and possibly either a WDM filter, or tap coupler. It is ideal for high power applications. The WDM is equally suitable for pump/signal combining and band separations (C/L, red/blue, etc.).
It has extremely low error function, polarization sensitivity, and insertion loss, as well as high isolation. Designed for compact and easy installation, it eliminates splices and extra fiber routing with reduced loss.
Its high performance provides exceptionally stable signal isolation, gain flattened profile, and when used, wavelength division multiplexing over wide wavelength/temperature ranges and all polarization states.
