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Optical packet exchanger

一种光分组、交换器的技术，应用在数据交换网络、电磁发射器、电磁接收器等方向，能够解决容量降低数量、传输效率降低、难以读取地址信号等问题，达到阻止吞吐量的减少的效果

Inactive Publication Date: 2006-02-22
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned conventional optical packet switch has a problem in that since a data signal to which an address signal corresponding to an information signal is added as a header is used, the transmittable capacity is reduced by an amount corresponding to the address signal; that is, Reduced transmission efficiency
This makes it difficult for the address extraction part 3005 in the router part 3000 to read the address signal

Method used

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Examples

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no. 1 example

[0027]Fig. 1 is a block diagram illustrating the structure of an optical packet switch according to a first embodiment of the present invention. In FIG. 1 , an optical packet switch according to a first embodiment of the present invention includes an optical transmitter section 100 , an optical transmission section 200 and a router section 300 . The optical transmitter component 100 includes a light source 101 and a light modulation component 102 . The light modulation unit 102 includes a splitter unit 103, a first splitter unit 104, a first synthesis unit 105, a first waveguide 106, a second waveguide 107, a second synthesis unit 108, a second splitter unit 109, and an inverting unit 110 And light synthesis component 111. The router part 300 includes an optical splitter part 301 , an address reading part 302 and a routing switching part 303 . The address reading section 302 includes a phase / intensity conversion section 304 and a photoelectric conversion section 305 .

[00...

no. 2 example

[0051] Figure 7 is a block diagram illustrating the structure of an optical packet switch according to a second embodiment of the present invention. Figure 7 , an optical packet switch according to the second embodiment includes an optical transmitter section 120 , an optical transmission section 200 and a router section 300 . The optical transmitter part 120 includes an optical signal source 121 and a light modulation part 122 . The optical signal source 121 includes a light source 101 , a first splitter part 104 , a first combining part 105 and a first waveguide 106 . The light modulation section 122 includes the second waveguide 107 , the second synthesis section 108 , the second splitter section 109 and the inversion section 110 . The router section 300 has the same structure as the router section 300 in the first embodiment.

[0052] Such as Figure 7 It can be seen that in the optical packet switcher according to the second embodiment, the phase modulation function...

no. 3 example

[0054] Figure 8 is a block diagram illustrating the structure of an optical packet switch according to a third embodiment of the present invention. Figure 8 , an optical packet switch according to the third embodiment includes an optical transmitter section 130 , an optical transmission section 200 and a router section 300 . The optical transmitter part 130 includes an optical signal source 131 and a light modulation part 132 . The optical signal source 131 includes a light source 101 , a second waveguide 107 , a second combining part 108 , a second splitter part 109 and an inverting part 110 . The light modulation part 132 includes the first splitter part 104 , the first combining part 105 and the first waveguide 106 . The router section 300 has the same structure as the router section 300 in the first embodiment.

[0055] Such as Figure 8 It can be seen that in the optical packet switcher according to the third embodiment, the phase modulation function using the addre...

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Abstract

An optical packet exchanger is provided which, in a situation where a transmission path for an optical packet is to be switched by using an address signal, prevents the transmittable capacity for the information signal from being decreased, and which facilitates the extraction of the address signal even if the modulation speed for the information signal becomes high. An optical modulation section 102 outputs an optical packet obtained by subjecting output light from a light source 101 to an intensity modulation using an information signal and a phase modulation using an address signal corresponding to a transmission destination for the information, signal. An optical splitter section 301 splits the optical packet received via the optical transmission section 200 into two optical packets. An address reading section 302 reads the address signal from the phase of one of the optical packets output from the optical splitter section 301. Based on the address signal output from the address reading section 302, a path switching section 303 determines an output port for the other optical packet.

Description

technical field [0001] The present invention relates to an optical packet switch, and more particularly, to an optical packet switch that switches transmission paths of optical packet signals by using address signals. Background technique [0002] An example of a conventional optical packet switch that switches a transmission path for an optical packet signal by using an address signal is, for example, a device disclosed in "giga-bit Ethernet textbook" by K. SETO et al., published by ASCII Corporation on Published in March 1999 by multimedia tsushin kenkyukai. Figure 11 is a block diagram illustrating an exemplary structure of this conventional optical packet switch. [0003] Figure 11 Among them, a conventional optical packet switch includes an optical transmitter part 1000 , an optical transmission part 2000 and a router part 3000 . The optical transmitter part 1000 includes a light source 1001 , a light modulation part 1002 and a data generation part 1003 . The router...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04B10/27H04B10/516H04B10/54H04B10/556H04B10/61H04L12/70
CPCH04Q11/0005H04Q11/0066H04Q2011/0041H04Q2011/0039H04Q2011/0015
Inventor 塩崎亨布施優
Owner PANASONIC CORP
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