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Multi-wavelength component for fiber optic communication

An optical fiber communication and multi-wavelength technology, applied in the field of optical fiber communication, can solve the problems of poor structural stability, difficult to guarantee parallelism and other characteristics, and too sensitive distance adjustment, so as to improve dustproofness, air tightness, and parallelism. Guarantee and eliminate the effect of light refraction error

Inactive Publication Date: 2015-07-29
RISING ELECTRO OPTICS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, due to the existence of spherical aberration in this single-lens parallel light coupling scheme, the optical performance at the edge of the lens is different from that at the center of the lens, making the adjustment of the distance between the laser chip (11100) and the positive lens (6100) too sensitive. It is difficult to debug, and the structural stability is not very good. When the relative distance between the laser chip (11100) and the positive lens (6100) changes due to vibration, temperature change and aging during transportation or use, It will make it difficult to guarantee the parallelism and other characteristics of the laser light emitted from the positive lens (6100), which will deteriorate the product performance and even fail

Method used

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  • Multi-wavelength component for fiber optic communication
  • Multi-wavelength component for fiber optic communication
  • Multi-wavelength component for fiber optic communication

Examples

Experimental program
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Effect test

Embodiment 1

[0040] When the present invention is used for simultaneous transmission and reception of optical signals, such as image 3 As shown, optical signals of different wavelengths are simultaneously received and transmitted at the fiber end 2 .

[0041] The divergent beam optical signal sent by the laser chip 111 of the transmitter 11 becomes a converged beam optical signal after passing through the positive lens 61 , and the converged beam optical signal becomes a parallel beam optical signal after passing through the negative lens 51 . Since the wavelength of laser light emitted by the laser chip 111 at the transmitting end 11 is within the transmission band of the optical filter 41, the parallel beam signal can be transmitted through the optical filter 41, and the parallel beam optical signal is transmitted by the optical fiber end 2 after being transmitted through the optical filter 41. Receive directly.

[0042] Because the wavelength of the laser light emitted by the fiber en...

Embodiment 2

[0044] When the present invention is used for coupling transmission of multi-wavelength laser light signals, such as Figure 4 As shown, the fiber end 2 accepts laser signal input of multiple wavelengths at the same time.

[0045] In this example, laser signals of multiple wavelengths come from laser chips 111, 121 and 131 respectively, wherein the laser wavelength of laser chip 111 is located in the transmission band of all optical filters 41, 42 of the optical coupling part, and the laser wavelength of laser chip 121 The wavelength of the laser light emitted by the laser chip 131 is within the reflection band of the filter 42 and the transmission band of the filter 41 .

[0046] The divergent beam optical signal sent by the laser chip 111 of the transmitting end 11 becomes a converged beam optical signal after passing through the positive lens 61, and the converged beam optical signal becomes a parallel beam optical signal after passing through the negative lens 51. Since th...

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Abstract

The invention discloses a multi-wavelength component for the fiber optic communication. The component is used for multi-wavelength laser coupling for single optical fiber transceiving communication and comprises an emitting portion, a receiving portion, an optical coupling portion and an optical fiber terminal. The optical fiber terminal is provided with a straightening portion used for straightening the laser; the emitting portion comprises more than one emitting terminal comprising laser chips generating laser and straightening lens groups; the wavelengths of laser generated by the laser chips of the emitting terminals are different; the straightening lens groups are located in the light emitting ports of the emitting terminals, and the laser generated by the laser chips is concentrated through the straightening lens groups before emitting to the optical coupling portion through the light emitting ports. An optical path component is optimized, the brightness and parallelism of laser emitted through the emitting portion can be guaranteed well, the optical path component is easy to package and adjust, and the multi-wavelength laser coupling capability of an optical coupling component can be improved.

Description

technical field [0001] The invention relates to the field of optical fiber communication, in particular to a multi-wavelength component for optical fiber communication. Background technique [0002] With the application of optical fiber network becoming more and more popular, especially the gradual implementation of fiber access FTTH projects around the world, as well as point-to-point data transmission, in order to make reasonable use of the deployed fiber resources, the market for multi-wavelength laser coupling in a single fiber The demand for single-fiber bidirectional components to realize multi-channel transceiver communication is also increasing. With the advancement of triple play and the continuous promotion of fiber-to-the-home networks, the demand for single-fiber three-way components in the market has increased, especially for single-fiber three-way components with a narrow interval between two wavelengths. [0003] At present, the single-fiber bidirectional com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/42
CPCG02B6/4296G02B6/4206
Inventor 游海斌吴玉霞
Owner RISING ELECTRO OPTICS LTD
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