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US 6,807,002 B2Granted
Planar Lightwave circuit type optical amplifier
AssigneeSamsung Electronics Co., Ltd.
InventorYoung-Kwon Yoon
Life of this patent
Estimating the term…
Abstract
A PLC type optical amplifier is provided. In the PLC type optical amplifier, an amplification layer is formed of a light amplifying material on a semiconductor substrate at a side of a core layer, spaced from the core layer. The amplification layer forms an annular light path. Thus, optical signals are coupled between the core layer and the amplification layer.
Claims20
A Planar Lightwave Circuit (PLC) type optical amplifier comprising:
- a semiconductor substrate;
- a lower clad layer deposited on the semiconductor substrate;
- a core layer deposited on the lower clad layer, for propagating an optical signal;
- an amplification layer deposited on the lower clad layer and adjacent the core layer, said amplification layer forming an annular light path and amplifying an optical signal coupled inward from the core layer along the annular light path;
- wherein the amplification layer is formed of erbium-doped silica to have an annular shape having a predetermined radius;
- and
- an upper clad layer deposited on the amplification layer, so that said lower clad layer and said upper clad layer surround the core layer and amplification layer.
4 more elements
A Planar Lightwave Circuit (PLC) type optical amplifier comprising:
- a semiconductor substrate;
- a core layer arranged on the semiconductor substrate, for propagating an optical signal;
- an amplification layer arranged on the semiconductor substrate for forming an annular light path and amplifying an optical signal coupled inward from the core layer along the annular light path;
- wherein the amplification layer is formed of erbium-doped silica to have an annular shape having a predetermined radius;
- and
- a clad layer surrounding the core layer and the amplification layer so as to be arranged between the core layer and the semiconductor substrate to confine a path of the optical signal to the core layer and amplification layer.
3 more elements
A method for providing a PLC type optical amplifier, comprising the steps of:
- (a) providing a semiconductor substrate;
- (b) depositing a lower clad layer on the semiconductor substrate;
- (c) depositing a core layer on the lower clad layer for propagating an optical signal;
- (d) depositing an amplification layer on the lower clad layer and adjacent the core layer, said amplification layer forming an annular light path and amplifying an optical signal coupled inward from the core layer along the annular light path, wherein the amplification layer is formed of erbium-doped silica and has an annular shape with a predetermined radius;
- and
- (e) depositing an upper clad layer on the amplification layer, so that said lower clad layer and said upper clad layer surround the core layer and amplification layer.
3 more elements
Dependencies are inferred from the claim text.