This hybrid device combines an input multi-mode 9xx nm pump with a 1550 nm single-mode signal and a double cladding fiber (DCF) output for high-power optical amplification applications. A single-stage isolator for a 1550 nm signal is integrated into the device to allow better performance and greater integration of the high-power erbium doped fiber amplifier (EDFA) design.
This is a key component for cladding pumped high-power EDFAs. This device provides a flexible platform for interfaces with other specialty fibers, such as standard SMF-28 signal input fiber, low (0.15 NA) or high (0.46 NA) MM core NA independent to its core size on the 9xx nm input and output DCF ports.
Key Features
MM 9xx/SM 1550 WDM with single-stage isolator
DCF output, 125 µm MM core and 0.45 NA; other MM core size and NA available
Compact package design: 5.5 (Ø) x 32 (L) mm
-5 to 70 °C operating range