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Multiplexer and Light Combining Method

A multiplexer, light technology, applied in the direction of light guide, optics, instruments, etc., can solve problems such as high cost and complex structure

Active Publication Date: 2021-01-26
O NET COMM (SHENZHEN) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing multi-channel parallel optical transceiver structure is a wavelength division multiplexer formed by two total reflection planes, which has a complex structure and high cost

Method used

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  • Multiplexer and Light Combining Method

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Embodiment Construction

[0033] The multiplexer of the present invention includes an optical transmitting sub-module (TOSA, Transmitter Optical Subassembly) and an optical receiving sub-assembly (ROSA, Receiver Optical Subassembly), wherein TOSA is mainly used in converting electrical signals into optical signals (E / O conversion), Performance indicators include optical power, threshold, etc.; ROSA mainly uses optical signals to convert into electrical signals (O / E conversion), and the main performance indicators include sensitivity (Sen), etc. The multiplexer of the present invention can function as a light combining element or a light splitting element.

[0034] like figure 2 Shown is a schematic structural diagram of the first embodiment of the multiplexer, the multiplexer includes: a first laser emitter that emits the first path of P-polarized light P1, a laser emitter that emits the second path of P-polarized light P2 The second laser transmitter, the third laser transmitter that emits the third...

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Abstract

The present invention provides a multiplexer and its light combination method, which includes: a first 1 / 2 wave plate, a second 1 / 2 wave plate, a first beam splitter, a second beam splitter, a first 1 / 4 wave plate, second 1 / 4 wave plate, Faraday rotator, and third beam splitter; wherein, the first beam splitter simultaneously receives the first path of P-polarized light passing through the first 1 / 2 wave plate and the second P-polarized light, the first 1 / 4 wave plate receives the light passing through the first beam splitter; the second beam splitter simultaneously receives the third P-polarized light passing through the second 1 / 2 wave plate light and the fourth P-polarized light, the second 1 / 4 wave plate receives the light passing through the second beam splitter; the Faraday optical rotation plate receives the light passing through the first 1 / 4 wave plate and the second 1 / 4 wave plate; The three-beam splitter receives the light passing through the Faraday rotator. The multiplexer achieves the effect of combining multiple channels of light into one channel of light through the light combination of the beam splitter and the optical rotation of the wave plate, that is, multi-channel convergence.

Description

technical field [0001] The invention belongs to the technical field of optical fiber access, and in particular relates to a multiplexer and a light combining method thereof. Background technique [0002] figure 1 It is a schematic diagram of the existing multi-channel parallel optical transceiver structure, which uses a common wavelength division for multi-channel parallel TOSA (transmit optical sub-assembly) and multiple parallel ROSA (optical receiving sub-module, Receiver Optical Subassembly) The multiplexer structure includes a light emitting array 1, a first microlens array 2, a photodetector array 3, a second microlens array 4, a total reflection mirror 6, a wavelength division multiplexer 5 and two optical fiber collimators 7. The wavelength division multiplexer 5 includes a flat-plate fixed element 501, one side of the fixed element is a total reflection surface 502, and the other side is an interference filter array 503, corresponding to each light-emitting unit of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/293G02B6/27
CPCG02B6/2746G02B6/2773G02B6/2938
Inventor 绪海波陈万英
Owner O NET COMM (SHENZHEN) LTD