Off-axis wavelength division multiplexer

A technology of wavelength division and multiplexer, applied in the direction of wavelength division multiplexing system, etc., can solve the problems of large space and difficult assembly of optical collimator

Inactive Publication Date: 2010-05-26
ASIA OPTICAL CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Since the optical collimator 222 of the zigzag wavelength division multiplexer 2 needs to form the angle θ with the first side 211 of the middle block 21, proper penetration and reflection effects can be achieved, and its refractive index gradually changes. The number of lenses 232 used will increase according to the requirements of the optical design, and the optical collimator of the aforementioned output device 23 adopts a transmission mode to form a zigzag transmission path. Therefore, the optical collimators of the aforementioned output device 23 cannot interact with each other. In addition, the above-mentioned Z-shaped transmission path also makes the above-mentioned output device 23 must be respectively formed on the first and second sides 211, 212 of the middle block 21, so it is not easy to assemble Shortcomings

Method used

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  • Off-axis wavelength division multiplexer
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  • Off-axis wavelength division multiplexer

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Embodiment Construction

[0028] refer to Figure 5 , a first preferred embodiment of the off-axis wavelength division multiplexer of the present invention includes: a casing 3 defining an accommodating space 30 , a reflection unit 4 , an input unit 5 and multiple output units 6 .

[0029] The housing 3 has a first side portion 31 , a second side portion 32 opposite to the first side portion 31 , and a third side portion 33 connecting the first and second side portions 31 , 32 .

[0030] The reflection unit 4 is disposed on the first side portion 31 of the casing 3 . In the first preferred embodiment, the reflecting unit 4 is a reflecting mirror.

[0031] The input unit 5 is disposed on a third side portion 33 of the housing 3 and has an outer tube 51 , an off-axis sleeve 52 , an optical fiber 53 and a gradient index lens 54 .

[0032]The off-axis sleeve 52 is disposed in the outer tube 51 and is close to the second side portion 32 of the casing 3 relative to the reflection unit 4 . The optical fibe...

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Abstract

This invention discloses an off-axis wave length segment multiplex device including: an off-axis input unit set in one of the two third part with a defined containing space, having a first side part,a second side part opposite to the first part and a shell of two third side parts connecting the first and second side parts, a reflection unit set on the first part and multiple off-axis output unitsarrayed from the input unit to the other third part adjacently in the containing space and opposite to the reflection unit away from the first side part.

Description

technical field [0001] The present invention relates to a wavelength division multiplexer (WDM for short), in particular to an off-axis wavelength division multiplexer. Background technique [0002] With the increasing popularity of the Internet and the rapid growth of high transmission capacity, the WDM system composed of optical fiber communication architecture has become an indispensable tool in the digital age. In order to cope with the wavelength division multiplexing (WDM-PON) used by fiber-to-the-home (FTTH) in the future, a multi-channel wavelength division multiplexer that is suitable for outdoor use must It has the conditions of small size, low insertion loss and easy installation. [0003] refer to figure 1 , an existing wavelength division multiplexer 1, comprising a plurality of transmission units 10 adjacently arranged along a direction X, a starting side 101 is defined for the wavelength division multiplexer 1 by the aforementioned transmission units 10 and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J14/02
Inventor 孙嘉泽
Owner ASIA OPTICAL CO INC
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