Full optical fiber type wave-particle dualism measuring apparatus

A measuring device, all-fiber technology, applied in the field of optical information, can solve the problem of less research, and achieve the effect of easy construction and simple device structure

Inactive Publication Date: 2008-10-08
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
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Problems solved by technology

However, less research has been done on the measurement device for the understanding of the nature of light, and there is no patent related to it at present.

Method used

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  • Full optical fiber type wave-particle dualism measuring apparatus
  • Full optical fiber type wave-particle dualism measuring apparatus

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing and specific embodiment this device is described in detail:

[0028] according to figure 1 Make an all-fiber optical wave-particle duality measurement device, and its components are selected as follows:

[0029] The generation of the single photon source uses a signal generator Systron Donner 110D pulse generator to generate a TTL signal with a frequency of 1MHz to drive a pulsed semiconductor laser with a wavelength of 850nm, a pulse width of less than 100ns, an average power of about 50μW, and a pigtail output to adjustable optical attenuation Device (composed of mechanically adjustable and flanged attenuators), OC-60 type, the entire adjustable range is 15-100dB, and the accuracy is 0.1dB. Adjust the attenuation to about 80dB. After the light pulse passes through the attenuator, every ten pulses contains one photon on average, which can be regarded as a single photon source approximately. The output terminal of the sin...

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Abstract

The invention relates to a device for measuring light wave-particle duality and realizes verification and observation for wave-particle duality. The invention provides an observation device of the wave-particle duality which has the advantages of simple structure, easy construction, strong noise immunity, and easily observing measuring result. Single photon source, a light ring-shaped device and an X-shaped optical splitter/combiner are connected in turn to form the device. Moreover, the device is arranged two single photon detecting counter. The physical basis of the device is: when measuring corpuscular property, the device makes use of a characteristic of route random selection when the photons pass the X-shaped optical splitter/combiner, and a characteristic of prominently displaying classical particle motional orbits and locus; when measuring the wave character, the device makes use of Sagnac interferometer, a superposition characteristic when the photons meet at the X-shaped optical splitter/combiner, and an interference characteristic of prominently displaying classical wave.

Description

technical field [0001] The invention relates to a device for measuring light-wave-particle duality, which realizes verification and observation of light-wave-particle duality, and belongs to the technical field of optical information. Background technique [0002] It should be said that people's thinking about the nature of light began in the seventeenth century, and two sharply contradictory theories coexisted. On the one hand, some people represented by Newton proposed the particle nature of light, thinking that light is a flow of particles flying in a straight line according to the law of inertia. On the other hand, Huygens proposed the wave nature of light, thinking that light is a mechanical wave propagating in a special elastic medium. After research in the 17th and 18th centuries, a breakthrough in the understanding of the nature of light occurred in the 1860s. On the basis of predecessors, Maxwell established the electromagnetic theory of light. Light is an electro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J11/00
Inventor 马海强于丽
Owner BEIJING UNIV OF POSTS & TELECOMM
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