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US 2003/0198431 A1Published application
Optical device
AssigneeDelta Electronics, Inc.
InventorsHuan-Kun Chen, Yu-Chuan Chen
Life of this patent
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Abstract
An optical device is provided, including two dual-fiber collimators, two single-fiber collimators, two filters connected respectively to the two dual collimators, and two mirrors. The two dual-fiber collimators are interconnected by coupling an optical fiber thereof to each other. One mirror is fixed in position, and the other mirror is mounted on a mechanism capable of moving up and down so as to switch an optical path.
Claims20
1 An optical device, comprising:
- a first input end for receiving a multiple-wavelength optical signal, wherein the multiple-wavelength optical signal includes an optical signal to be dropped, and the first input end has a first filter that is capable of isolating the optical signal to be dropped, from the multiple-wavelength optical signal,
- a second input end for receiving an optical signal to be added, which has the same wavelength as the optical signal to be dropped;
- a first output end;
- a second output end coupled to the first input end, and having a second filter for allowing the optical signal to be dropped and the optical signal to be added to pass therethrough;
- and
- a switching member for urging signal output via the first and second output ends, wherein when the switching member is situated at a first position, the first output end outputs the optical signal to be dropped that passes through the first filter, and the second output end outputs the optical signal to be added and the multiple-wavelength optical signal exclusive of the optical signal to be dropped, and wherein when the switching member is situated at a second position, the second output end outputs the multiple-wavelength optical signal exclusive of the optical signal to be dropped and the optical signal to be dropped that passes through the first filter, and the first output end outputs the optical signal to be added.
3 more elements
The optical device according to claim 1, wherein the first input end further comprises.
- a first dual-fiber collimator having an optical fiber connected to the second output end.
3 The optical device according to claim 2, wherein the first filter is mounted in front of the first dual-fiber collimator.
5 The optical device according to claim 2, wherein the second output end further comprises:
- a second dual-fiber collimator coupled to the optical fiber of the first dual-fiber collimator.
6 The optical device according to claim 5, wherein the second filter is mounted in front of the second dual-fiber collimator
7 The optical device according to claim 5, wherein the second filter is a plated film coated on an end surface of the second dual-fiber collimator.
The optical device according to claim 1, wherein the second output end comprises a first single-fiber collimator, and the first output end comprises a second single-fiber collimator.
The optical device according to claim 1, wherein the switching member comprises:
- a first reflective unit;
- and
- a movable second reflective unit having a first reflective surface and a second reflective surface;
- wherein when the second reflective unit is situated at the first position, the optical signal to be dropped is reflected by the first reflective unit to enter into the first output end, and the optical signal to be added is reflected by the first reflective unit to enter into the second output end, and outputted together with the multiple-wavelength optical signal exclusive of the optical signal to be dropped via the second output end;
- and wherein when the second reflective unit is situated at the second position, the optical signal to be dropped is reflected by the first reflective unit and the first reflective surface of the second reflective unit to enter into the second output end, and outputted together with the multiple-wavelength optical signal exclusive of the optical signal to be dropped via the second output end, and the optical signal to be added is reflected by the second reflective surface of the second reflective unit to enter into the first output end
2 more elements
10 The optical device according to claim 9, wherein the first and second reflective units are each a reflective mirror
The optical device according to claim 1, wherein the switching member comprises
- a first reflective unit;
- a second reflective unit;
- and
- a movable third reflective unit moving between the first reflective unit and the second reflective unit;
- wherein when the third reflective unit is situated at the first position, the optical signal to be dropped is reflected by the third reflective unit and the second reflective unit to enter into the first output end, and the optical signal to be added is reflected by the third reflective unit to enter into the second output end, and outputted together with the multiple-wavelength optical signal exclusive of the optical signal to be dropped via the second output end, and wherein when the third reflective unit is situated at the second position, the optical signal to be dropped is reflected by the first reflective unit to enter into the second output end, and outputted together with the multiple-wavelength optical signal exclusive of the optical signal to be dropped via the second output end, and the optical signal to be added is reflected by the first reflective unit to enter into the first output end
2 more elements
12 The optical device according to claim 11, wherein the first, second and third reflective units are each a reflective mirror
13 The optical device according to claim 1, wherein the switching member comprises.
- a movable refractive unit;
- a first reflective unit;
- a second reflective unit having a first reflective surface and a second reflective surface, and
- a third reflective unit,
- wherein when the refractive unit is situated at the first position, the optical signal to be dropped is reflected by the first reflective unit and the first reflective surface of the second reflective unit to enter into the first output end, and the optical signal to be added is reflected by the first reflective unit, the second reflective surface of the second reflective unit and the third reflective unit to enter into the second output end, and outputted together with the multiple-wavelength optical signal exclusive of the optical signal to be dropped via the second output end;
- and wherein when the refractive unit is situated at the second position, the optical signal to be dropped is reflected by the first reflective unit and the third reflective unit to enter into the second output end, and outputted together with the multiple-wavelength optical signal exclusive of the optical signal to be dropped via the second output end, and the optical signal to be added is reflected by the first reflective unit and the third reflective unit to enter into the first output end.
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14 The optical device according to claim 13, wherein the refractive unit is flat glass.
The optical device according to claim 13, wherein the first, second and third reflective units are each a reflective mirror.
The optical device according to claim 13, further comprising:
- a prism and flat glass, wherein the first reflective unit is a reflective film coated or adhered to a surface of the prism, the second reflective unit is a reflective film partly coated or adhered to a top surface of the flat glass, and the third reflective unit is a reflective film coated or adhered to a bottom surface of the flat glass
An optical device, comprising:
- a first dual-fiber collimator for receiving a multiple-wavelength optical signal, the multiple-wavelength optical signal including an optical signal to be dropped, wherein a first filter is mounted at one end of the first dual-fiber collimator for isolating the optical signal to be dropped, from the multiple-wavelength optical signal,
- a first single-fiber collimator for receiving an optical signal to be added, which has the same wavelength as the optical signal to be dropped;
- a second dual-fiber collimator coupled to the first dual-fiber collimator via an optical fiber, wherein a second filter is mounted at one end of the second dual-fiber collimator, for allowing the optical signal to be dropped and the optical signal to be added to pass through the second filter;
- a second single-fiber collimator;
- and
- a switching member for urging signal output via the second single-fiber and dual-fiber collimators, wherein when the switching member is situated at a first position, the second single-fiber collimator outputs the optical signal to be dropped that passes through the first filter, and the second dual-fiber collimator outputs the optical signal to be added and the multiple-wavelength optical signal exclusive of the optical signal to be dropped;
- and wherein when the switching member is situated at a second position, the second dual-fiber collimator outputs the multiple-wavelength optical signal exclusive of the optical signal to be dropped and the optical signal to be dropped that passes through the first filter, and the second single-fiber collimator outputs the optical signal to be added.
4 more elements
18 The optical device according to claim 17, wherein the switching member comprises:
- a first reflective unit;
- and
- a movable second reflective unit having a first reflective surface and a second reflective surface,
- wherein when the second reflective unit is situated at the first position, the optical signal to be dropped is reflected by the first reflective unit to enter into the second single-fiber collimator, and the optical signal to be added is reflected by the first reflective unit to enter into the second dual-fiber collimator, and outputted together with the multiple-wavelength optical signal exclusive of the optical signal to be dropped via the second dual-fiber collimator;
- and wherein when the second reflective unit is situated at the second position, the optical signal to be dropped is reflected by the first reflective unit and the first reflective surface of the second reflective unit to enter into the second dual-fiber collimator, and outputted together with the multiple-wavelength optical signal exclusive of the optical signal to be dropped via the second dual-fiber collimator, and the optical signal to be added is reflected by the second reflective surface of the second reflective unit to enter into the second single-fiber collimator
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20 The optical device according to claim 17, wherein the switching member comprises:
- a movable refractive unit;
- a first reflective unit;
- a second reflective unit having a first reflective surface and a second reflective surface;
- and
- a third reflective unit;
- wherein when the refractive unit is situated at the first position, the optical signal to be dropped is reflected by the first reflective unit and the first reflective surface of the second reflective unit to enter into the second single-fiber collimator, and the optical signal to be added is reflected by the first reflective unit, the second reflective surface of the second reflective unit and the third reflective unit to enter into the second dual-fiber collimator, and outputted together with the multiple-wavelength optical signal exclusive of the optical signal to be dropped via the second dual-fiber collimator;
- and wherein when the refractive unit is situated at the second position, the optical signal to be dropped is reflected by the first reflective unit and the third reflective unit to enter into the second dual-fiber collimator, and outputted together with the multiple-wavelength optical signal exclusive of the optical signal to be dropped via the second dual-fiber collimator, and the optical signal to be added is reflected by the first reflective unit and the third reflective unit to enter into the second single-fiber collimator.
4 more elements
Dependencies are inferred from the claim text.