Optical: systems and elements – Optical amplifier – Optical fiber
Patent
1996-07-24
1999-03-09
Moskowitz, Nelson
Optical: systems and elements
Optical amplifier
Optical fiber
359349, 372703, G07B 637, H01S 306, G11B 700
Patent
active
058808752
ABSTRACT:
A light amplifier is constructed with only one multi-stage optical isolator so as to reduce the size thereof and to lower the fabrication cost thereof. The multi-stage optical isolator has two input ports and two output ports for cutting-off a reverse flow of a forwarding light when a following input light enters a first input port and when an output light enters a second input port. A source pump generates light used to amplify weak input light. A wavelength division multiplexer division-modulates wavelengths of the light generated by the source pump and the light forwarded through the multi-stage optical isolator. An optical fiber amplifies the light from the wavelength division multiplexer, and emits the amplified light through the first port of the multi-stage optical isolator.
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Bushnell Esq. Robert E.
Moskowitz Nelson
Samsung Electronics Co,. Ltd.
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