Patent ID: 7044660

Claim:
An integrated input module for an EDFA for amplifying optical signals, said integrated input module comprising a sleeve having a longitudinal capillary channel holding ends of a first optical fiber section and a second optical fiber section; a laser diode mounted in a package, said laser diode generating laser pump light though said laser diode package; a first collimating lens proximate said laser diode; a second collimating lens proximate said sleeve and said ends of said first optical fiber section and said second optical fiber section, a wavelength-dependent filter between said first and second collimating lens, said wavelength-dependent filter passing laser pump light and reflecting said optical signals, said ends of said optical fiber sections, said laser diode, said first collimating lens, said second collimating lens, and said wavelength-dependent filter arranged and oriented with respect to each other so that laser pump light from said laser diode is focused on said first optical fiber section end and so that optical signals from one of said optical fiber sections is passed to the other of said optical fiber sections.