Four-port optical route based on Mach-Zehnder optical switches

An optical switch and four-port technology, which is applied in the field of four-port optical routers, can solve the problems of large chip area and large insertion loss, and achieve the effects of reducing area, number, and optical loss

Active Publication Date: 2013-10-09
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology

However, the above-mentioned four-port router uses six Mach-Zehnder optical switch devices, which occupy a large chip area, and there are six waveguide crossovers, resulting in large insertion loss

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  • Four-port optical route based on Mach-Zehnder optical switches
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  • Four-port optical route based on Mach-Zehnder optical switches

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints.

[0019] In the four-port non-blocking optical router based on the Mach-Zehnder optical switch, the present invention reduces the number of Mach-Zehnder optical ...

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Abstract

The invention provides a four-port optical route based on Mach-Zehnder optical switches. The four-port blocking-free optical route comprises the four Mach-Zehnder optical switches (M1, M2, M3 and M4) with the same structure and the same size. A topological structure of the optical route is optimized, so that the number of the Mach-Zehnder optical switches and the number of crossed waveguides are reduced, and therefore loss is reduced. In addition, downlink communication of an output port of the four-port optical route is not influenced by uplink communication of an input port of any port of the four-port optics route.

Description

technical field [0001] The invention relates to the technical field of optical interconnection on an optical communication chip, in particular to a four-port optical router based on a Mach-Zehnder optical switch. Background technique [0002] Richard A.Soraf and others discovered the plasmonic dispersion effect of silicon. In 2004, Intel reported on Nature a Mach-Zehnder optical switch based on silicon-on-insulator (SOI) with a modulation rate of 1Gb / s. [0003] Combine the following Figure 1A with Figure 1B To illustrate the optical information transmission principle of the Mach-Zehnder optical switch. The state of the Mach-Zehnder optical switch is determined by the phase of the modulation arm. If the phase of the modulation arm is 0, the input signal from the input port I1 is output from the O2 port through the Mach-Zehnder optical switch, and the input signal from the input port I2 passes through the Mach -Zehnder optical switch is output from the O1 port, so as to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/293G02B6/35
Inventor 张凡凡杨林冀瑞强闵瑞
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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