Multi-port optical coupling system
First Claim
1. An optical coupling system comprising:
- a first collimator assembly having a first optical axis;
a second collimator assembly having a second optical axis;
an optical device disposed along an optical path between the first and the second collimator assembly;
a first sleeve for containing the first collimator assembly, said first sleeve having an angled end face for forming a first angle; and
a second sleeve for containing the second collimator assembly, said second sleeve having an end face for abutting the angled end face of the first sleeve such that the first optical axis of the first collimator assembly intersects with the second optical axis of the second collimator assembly at a coupling angle.
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Abstract
The invention provides an optical coupling system having a first collimator assembly having a first optical axis, a second collimator assembly having a second optical axis, an optical device, such as a tap coupler, an isolator or a WDM filter, disposed along an optical path between the first and the second collimator assembly, a first sleeve for containing the first collimator assembly, said first sleeve having an angled end face for forming a first angle, and a second sleeve for containing the second collimator assembly, said second sleeve having an end face for abutting the angled end face of the first sleeve such that the first optical axis of the first collimator assembly intersects with the second optical axis of the second collimator assembly at a coupling angle. The first sleeve and the second sleeve are relatively rotatable to each other for changing the coupling angle. Furthermore, the end face of the second sleeve is angled for forming a second angle.
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Citations
20 Claims
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1. An optical coupling system comprising:
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a first collimator assembly having a first optical axis;
a second collimator assembly having a second optical axis;
an optical device disposed along an optical path between the first and the second collimator assembly;
a first sleeve for containing the first collimator assembly, said first sleeve having an angled end face for forming a first angle; and
a second sleeve for containing the second collimator assembly, said second sleeve having an end face for abutting the angled end face of the first sleeve such that the first optical axis of the first collimator assembly intersects with the second optical axis of the second collimator assembly at a coupling angle. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An optical coupler device comprising:
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a first collimator having a first optical axis, said first collimator comprising an input optical fiber tube having at least two optical fibers therein and an input lens;
a second collimator having a second optical axis, said second collimator comprising an output optical fiber tube having at least two optical fibers therein and an output lens, said first collimator and said second collimator are optically aligned with each other;
an optical device disposed along an optical path between the first collimator and the second collimator;
a first outer sleeve for containing the first collimator, said first sleeve having an angled end face for forming a first angle; and
a second outer sleeve for containing the second collimator, said second sleeve having an angled end face for abutting to the angled end face of the first sleeve such that the first optical axis intersects with the second optical axis at a coupling angle. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of making an optical coupler device comprising the steps of:
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making a first collimator subassembly;
making a second collimator subassembly;
sliding a first outer sleeve having an angled end face over the first collimator subassembly;
sliding a second outer sleeve having an angled end face over the second collimator subassembly;
abutting the angled end faces of the first and second outer sleeves;
aligning the first and the second collimator subassemblies for providing an optical path between the first and the second collimator subassembly so that an image of an input fiber is coincident with a core of an output fiber;
relatively translating the first and the second outer sleeves for accommodating an off-set of the optical path;
relatively rotating the first and the second outer sleeve without rotating the first and second collimator subassemblies, for imparting a tilt for aligning the optical path; and
fastening the first and the second outer sleeve to the first and second collimator subassembly and to each other. - View Dependent Claims (20)
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Specification