Methods and apparatus for optical component identification
View Patent ↗Methods, apparatuses, and systems for obtaining identification information about fiber optic components and optical assemblies in a non-invasive manner. The present invention includes optical subassemblies (“OSAs”), and optical assemblies incorporating the OSAs where the OSAs comprise means, such as fluorescent material, for producing a fluorescent identification emission having a predetermined spectral signature that provides identification information describing the particular OSA, a component of the OSA, or the optical assembly. The present invention further includes methods for manufacturing fiber optic components to include fluorescent material providing identification information describing the fiber optic component.
1. An optical subassembly (“OSA”) comprising:
an optical fiber interface;
an active optical device optically aligned with the optical fiber interface for transfer of an optical signal; and
an optical component including a fluorescent material for producing a fluorescent emission, wherein laser light from the active optical device does not induce the fluorescent emission and wherein the fluorescent emission (i) is induced by light from a second light source and (ii) has a predetermined spectral signature identifying one or more characteristics of the optical subassembly.
2. The OSA according to claim 1 , further comprising:
a header located under the active optical device;
a barrel for aligning and coupling an end of an optical cable with the active optical device;
electrical leads coupled to the active optical device; and
an optical package at least partially received within the barrel.
3. The OSA according to claim 2 wherein the optical package is a TO-Can optical package.
4. The OSA according to claim 1 , wherein the optical component is at least one of a barrel for aligning and coupling the active optical device to the end of a fiber optic cable and a header located under the active optical device, wherein the optical component is at least partially made of the fluorescent material.
5. The OSA according to claim 4 , wherein the optical component is at least partially made of the fluorescent material by at least one of coating at least a portion of the optical component with fluorescent material and molding at least a portion of the optical component from fluorescent material.
6. The OSA according to claim 1 , wherein the predetermined spectral signature includes at least two different spectrums of light.
7. The OSA according to claim 6 , wherein the at least two different spectrums of light are emitted at different intensities of light.
8. The OSA according to claim 1 , wherein the fluorescent material includes at least one of a fluorescent dye or quantum dots.
9. The OSA according to claim 1 , wherein the fluorescent material includes at least two different types of fluorescent material, each type of fluorescent material selected to produce a fluorescent emission at a different spectrum of light.
10. The OSA according to claim 9 , wherein the fluorescent material includes at least two different types of fluorescent material of different proportions to create different fluorescent intensities at different spectrums of light.
11. The OSA according to claim 1 , wherein the fluorescent material includes particles made of at least one of cadmium sulfide (CdS), cadmium selenide (CdSe), and cadmium telluride (CdTe).
12. The OSA according to claim 1 , wherein the fluorescent material is a plastic fluorescent material.
13. The OSA according to claim 1 , wherein the fluorescent material is configured to emit a spectral signature identifying at least one of:
the manufacturer of the optical component;
the location of the manufacture of the optical component;
the year of manufacture of the optical component;
the model of the optical component;
an operational characteristic of the optical component;
the manufacturer of the OSA;
the location of the manufacture of the OSA;
the year of manufacture of the OSA;
the model of the OSA;
operational characteristics of the OSA
the manufacturer of the OSA;
the location of the manufacture of the OSA;
the year of manufacture of the OSA;
the model of the OSA; and
an operational characteristic of the OSA.
14. The OSA according to claim 1 , wherein the OSA is either a transmit optical subassembly (“TOSA”) including a vertical cavity surface emitting laser (VCSEL) or a receive optical subassembly (“ROSA”) including a photodiode.
15. An optical assembly comprising the optical subassembly of claim 1 .
16. A transceiver comprising the optical subassembly of claim 1 .
17. The optical subassembly of claim 1 , wherein the second light source comprises an ultra violet light emitting diode that is mounted along side of the active optical device.