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EP-4737963-A1 - OPTICAL SIGNAL CONVERTER

EP4737963A1EP 4737963 A1EP4737963 A1EP 4737963A1EP-4737963-A1

Abstract

An optical signal converter (1, 1a) includes a metal housing (10, 10a), a filter (20), a first fiber assembly (30) and a second fiber assembly (40). The metal housing includes a main ring part (11, 11a), a first mount ring part (12, 12a) and a second mount ring part (13), the first mount ring part is connected to one side of the main ring part, and the second mount ring part is welded to another side of the main ring part. The filter is disposed in the main ring part. The first fiber assembly is welded into the first mount ring part. The first fiber assembly is welded into the first mount ring part.

Inventors

  • WU, CHIN-TSUNG

Assignees

  • Ezconn Corporation

Dates

Publication Date
20260506
Application Date
20250120

Claims (10)

  1. An optical signal converter (1, 1a), comprising: a metal housing (10, 10a), comprising a main ring part (11, 11a), a first mount ring part (12, 12a) and a second mount ring part (13), wherein the first mount ring part is connected to one side of the main ring part, and the second mount ring part is welded to another side of the main ring part; a filter (20), disposed in the main ring part; a first fiber assembly (30), welded into the first mount ring part; and a second fiber assembly (40), welded into the second mount ring part.
  2. The optical signal converter (1) according to claim 1, wherein the first mount ring part (12) is welded to one side of the main ring part (11).
  3. The optical signal converter according to claim 2, wherein the main ring part has a first end surface (111) and a second end surface (112) axially located opposite to each other, the first mount ring part and the second mount ring part are respectively welded to the first end surface and the second end surface.
  4. The optical signal converter (1a) according to claim 1, wherein the first mount ring part (12a) is integrally connected to one side of the main ring part (11a).
  5. The optical signal converter according to claim 1, wherein the first mount ring part has a first inner annular surface (121), the first mount ring part is sleeved on the first fiber assembly, the first fiber assembly is welded to the first inner annular surface, the second mount ring part has a second inner annular surface (131), the second mount ring part is sleeved on the second fiber assembly, and the second fiber assembly is welded to the second inner annular surface.
  6. The optical signal converter according to claim 1, wherein the first fiber assembly comprises a first casing (31), a first sleeve (32), a first lens (33) and two first fibers (34, 35), the first casing is welded into the first mount ring part, the first sleeve and the first lens are located in the first casing, the first lens is located closer to the filter than the first sleeve, and the two first fibers are partially embedded into the first sleeve.
  7. The optical signal converter according to claim 6, wherein the second fiber assembly comprises a second casing (41), a second sleeve (42), a second lens (43) and a second fiber (44), the second casing is welded into the second mount ring part, the second sleeve and the second lens are located in the second casing, the second lens is located closer to the filter than the second sleeve, and the second fiber is partially embedded into the second sleeve.
  8. The optical signal converter according to claim 7, wherein the first sleeve and the first lens are adhered in the first casing, and the second sleeve and the second lens are adhered in the second casing.
  9. The optical signal converter according to claim 7, wherein the first sleeve and the first lens are spaced apart from each other, and the second sleeve and the second lens are spaced apart from each other.
  10. The optical signal converter according to claim 7, wherein the first sleeve and the first lens correspond to each other with inclined surfaces, and the second sleeve and the second lens correspond to each other with inclined surfaces.

Description

Technical Field The disclosure provides an optical signal converter. Background In general, a 1-to-2 demultiplexer and a 2-to-1 multiplexer are mainly made of glass material, which has an advantage that the amount of adhesive and the position where the adhesive is applied can be confirmed during light coupling process. During the light coupling process, a large gap is needed between the glass parts to allow the optical power of output light to be adjusted to a desired value, and thus a thick adhesive is required to be applied into the gap. Since the adhesive has a large expansion and shrinkage rate as the temperature changes, it is easy to cause the displacements of the glass parts, causing the optical power of the output light to change. Moreover, the adhesive is easy to be damaged in high temperature and high humidity environments, causing the reliability issues. Therefore, how to solve the aforementioned issues are one of the topics in this field. SUMMARY The disclosure provides an optical signal converter which is capable of solving the issue that the optical path derived from using glass parts and combining them by adhesive is easily changed due to environmental factors, causing the optical power of the output light does not meet the desired value. One embodiment of the disclosure provides an optical signal converter. The optical signal converter includes a metal housing, a filter, a first fiber assembly and a second fiber assembly. The metal housing includes a main ring part, a first mount ring part and a second mount ring part, the first mount ring part is connected to one side of the main ring part, and the second mount ring part is welded to another side of the main ring part. The filter is disposed in the main ring part. The first fiber assembly is welded into the first mount ring part. The first fiber assembly is welded into the first mount ring part. According to the optical signal converter as discussed in the above embodiment, the metal housing is applied, the first mount ring part is connected to the main ring part of the metal housing, the second mount ring part is welded to the main ring part of the metal housing, the first fiber assembly is welded into the first mount ring part of the metal housing, and the second fiber assembly is welded into the second mount ring part of the metal housing, which enables the relative positions among the main ring part, the first mount ring part, the second mount ring part, the first fiber assembly and the second fiber assembly to be difficult to be offset from one another due to environmental factors, thereby maintaining the optical power of the output light. BRIEF DESCRIPTION OF THE DRAWINGS The present disclosure will become better understood from the detailed description given herein below and the accompanying drawings which are given by way of illustration only and thus are not intending to limit the present disclosure and wherein: FIG. 1 is a perspective view of an optical signal converter according to a first embodiment of the disclosure;FIG. 2 is an exploded view of the optical signal converter in FIG. 1;FIG. 3 is a cross-sectional view of the optical signal converter in FIG. 1;FIG. 4 is a cross-sectional view of the optical signal converter in FIG. 1 connected to another optical signal converter; andFIG. 5 is a perspective view of an optical signal converter according to a second embodiment of the disclosure. DETAILED DESCRIPTION In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawing. In addition, the terms used in the present disclosure, such as technical and scientific terms, have its own meanings and can be comprehended by those skilled in the art, unless the terms are additionally defined in the present disclosure. That is, the terms used in the following paragraphs should be read on the meaning commonly used in the related fields and will not be overly explained, unless the terms have a specific meaning in the present disclosure. Referring to FIGS. 1 to 3, FIG. 1 is a perspective view of a optical signal converter according to a first embodiment of the disclosure, FIG. 2 is an exploded view of the optical signal converter in FIG. 1, and FIG. 3 is a cross-sectional view of the optical signal converter in FIG. 1. In this embodiment, the optical signal converter 1 includes a metal housing 10, a filter 20, a first fiber assembly 30 and a second fiber assembly 40. The metal housing 10 includes a main ring part 11, a first mount ring part 12 and a second mount ring part 13. The filter 20 is, for example, made of glass material. The filter 20 is disposed in the main ring part 11. The main ring part 11 has a f