Small single-fiber and both-way optical device

An optical device, a single-fiber bidirectional technology, applied in the field of single-fiber bidirectional devices, can solve the problems of large size and high cost, and achieve the effects of reducing the amount of mechanical parts, simplifying the structure, and high coupling efficiency

Inactive Publication Date: 2014-10-01
BANDWEAVER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its disadvantages are: due to the use of two TO (one laser TO, the other receiver TO), and the two TO need to be respectively fixed on a metal piece, the overall size is relatively large, and the cost is also high

Method used

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  • Small single-fiber and both-way optical device
  • Small single-fiber and both-way optical device
  • Small single-fiber and both-way optical device

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Embodiment Construction

[0019] Below we will further describe the invented coaxial single-fiber bidirectional device in detail in conjunction with the accompanying drawings and specific embodiments, in order to understand the structural characteristics and application process of the present invention more clearly, but this cannot be used to limit the present invention. protection scope of the invention.

[0020] Please see first figure 2 , the present invention mainly relates to a miniaturized single-fiber bidirectional optical device, the single-fiber bidirectional optical device includes an optical fiber assembly 3, a laser assembly 1 and a detector assembly 2 coaxially sleeved into one, the laser assembly 1 The optical fiber assembly 3 is connected and fixed together through a mechanical sleeve 4, so that the laser assembly 1 and the optical fiber assembly 3 are coaxially coupled, and the detector assembly 2 is sleeved in the laser assembly 1 .

[0021] Such as image 3 As shown, in the miniatu...

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Abstract

The invention relates to a small single-fiber and both-way optical device. The small single-fiber and both-way optical device comprises an optical fiber assembly, a laser assembly and a detector assembly, all of which are coaxially sleeved together. The laser assembly is fixedly connected with the optical fiber assembly through a mechanical sleeve to enable the laser assembly and the optical fiber assembly to be coaxially coupled, and the detector assembly is arranged in the laser assembly in a sleeved mode. A laser chip and an optical filter are arranged to form a certain angle, and the optical filter reflects an uplink light signal emitted from the laser chip and transmits a downlink light signal emitted from an optical fiber. According to the single-fiber and both-way optical device, the structure and the manufacturing technology of the single-fiber and both-way device are simplified, material cost and manufacturing cost are reduced, and the size occupied by the whole device is reduced.

Description

technical field [0001] The invention relates to an optical device, in particular to a single-fiber bidirectional device for optical communication. Background technique [0002] Single-fiber bidirectional device (BOSA) is one of the most widely used and used optical devices in optical communication. Currently commonly used single-fiber bidirectional devices are composed of a TO laser with a lens, a filter at about 45 degrees on the optical axis, an optical fiber ferrule, and a TO-type receiver (photodetector). The function of the single-fiber bidirectional device is to complete the simultaneous transmission of downlink signals and uplink signals on one optical fiber. Its structure is as follows: figure 1 shown. [0003] In the above-mentioned single-fiber bidirectional device, in the downlink state of the optical signal: the signal light emitted from the optical fiber 6` is reflected by the 45-degree filter 4`, and is converged to the detector 8` by the lens 7` to be receiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/42
Inventor 方祖捷赵强赵浩
Owner BANDWEAVER TECH CO LTD
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