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Light-operated photon logic gate

A logic gate, photonic technology, applied in the field of photonic logic gate, can solve problems such as unreported

Inactive Publication Date: 2016-04-06
CHONGQING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, the single-mode laser has realized the application of high-performance wavelength conversion, optical logic gate, optical switch and optical memory technology, but the operation of optically controlled logic gate based on the single-mode laser has not been reported. Therefore, The present invention will use the built-in external cavity single-mode Fabry-Perot laser as the core control unit to realize the optical control logic operation function

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0016] Such as figure 1 As shown, the present invention includes three input waveguides with a control laser pulse I, a first signal laser pulse A and a second signal laser pulse B, an output waveguide T, an optical coupler 1, a circulator 2 and a single-mode laser 3, The three input waveguides are connected to the first port of the circulator 2 with unidirectional transmission characteristics through the optical coupler 1, the second port of the circulator 2 is connected to the single-mode laser 3, and the third port of the circulator 2 is connected to the output waveguide T.

[0017] The above-mentioned single-mode laser 3 selects a built-in external cavity single-mode Fabry-Perot laser, which has high side-mode suppression ratio, large tuning range and low price, which increases the tunable dynamic range and stability of the logic gate, and also reduces L...

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Abstract

The invention discloses a light-operated photon logic gate, and the logic gate comprises three input waveguides: a control laser pulse I, a first signal laser pulse A, and a second signal laser pulse B. The logic gate also comprises one output waveguide T, an optical coupler (1), a circulator (2), and a single-mode laser (3). The three input waveguides are connected with a first port of the circulator (2) with the characteristic of unidirectional transmission, and a second port of the circulator (2) is connected with the single-mode laser (3). A third port of the circulator is connected with the output waveguide T. The technical effects of the invention are that the logic gate achieves the logic Not And and logic NOR operation of two laser signals.

Description

technical field [0001] The invention relates to a photon logic gate, in particular to a photon logic NAND gate and NOR gate based on single-mode laser light control. Background technique [0002] In modern laser technology, the semiconductor laser system with external cavity feedback has been widely developed and researched. It uses fiber grating elements with different periodic structures to selectively feedback the laser mode radiated from the laser, and the fed back laser mode will be injected into the laser again. In this way, the feedback laser mode is oscillated and amplified in the entire feedback laser system, and finally outputs single-mode or multi-mode laser. [0003] Built-in external cavity single-mode Fabry-Perot laser is a semiconductor single-mode laser system with a new structure device proposed in recent years. Compared with traditional single-mode lasers, it has obvious advantages in module size and price. In addition, the single-mode laser has a high sid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/098
CPCH01S3/08018
Inventor 吴建伟
Owner CHONGQING NORMAL UNIVERSITY
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