Compact passive module for erbium and other fiber amplifiers

Details Compact passive module for erbium and other fiber amplifiers Compact passive module for erbium and other fiber amplifiers

2006-11-22

2008-10-21

Bolda, Eric (Department: 3663)

Optical: systems and elements

Optical amplifier

C359S337100

Reexamination Certificate

active

07440163

ABSTRACT:
Techniques for designing optical devices with passive components for erbium and other doped fiber amplifiers are disclosed. In one aspect, all passive components needed to construct optical amplifiers of both single and multiple-stage forward or backward pumps are integrated without extensively using optical fiber splicing joints. One of the features is to use free-space optics for inter-function cascades among various necessary functions, such as one or more tap couplings, WDM filtering to multiplex (Mux) or de-multiplex (Demux) pump and signal lights, gain-flattening, pump isolation and even performing Mux and Demux of different polarizations.

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