Method and device for extracavity generation of three-dimensional wavepacket trajectory coupled beam
A generation method and wave packet technology, applied in optics, optical components, instruments, etc., can solve the problems of difficult and flexible control, increase cost, and difficult to convert, and achieve the effect of convenient operation, simple installation, and flexible customization of the light field.
Active Publication Date: 2022-06-03
TSINGHUA UNIV
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It is precisely because this method is heavily dependent on the parameters of the resonant cavity (cavity length, cavity mirror curvature, etc.), it is necessary to strictly and accurately adjust the cavity parameters (cavity length, cavity mirror curvature, etc.) to meet the harsh conditions of the frequency degenerate cavity. It is difficult to realize the conversion of different SU(2) coherent state modes; at the same time, due to the limitations of the stability of the resonator and the length of the cavity, various types of SU(2) coherent state light fields cannot be generated by this method; in addition, due to the Due to the limitations of the resonator itself, it is difficult to flexibly control the eigenstates of the SU(2) coupling in the resonator. Generally, the resonator can only output the Hermitian-Gaussian mode family, and other SU(2) eigenmodes need to pass through the cavity External mode conversion produces
The above characteristics all show that the complex tuning based on the cavity not only increases the cost, but also seriously limits the work efficiency and tuning flexibility.
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[0032] The modes of lasers in quantum optics can be expressed as eigensolutions of three-dimensionally coupled transversely symmetric linear resonators,
[0033]
[0035]
[0036] ω
[0038]
[0039]
[0040]
[0041] ω
[0043]
[0045]
[0047]
[0049]
[0051]
[0052] Here Ω∈(0,1), and only when Ω is a rational number, the frequency degeneracy condition may be satisfied. The above formula shows
[0053] The embodiment of the present invention proposes a novel method for generating and customizing SU(2) coherent state beams, which is completely
[0080] The embodiment of the present invention provides a method for generating a three-dimensional wave packet trajectory coupling beam outside the cavity, by using Schrödinger's
[0084] The phase holographic template is written into the spatial light modulator.
[0086] The out-of-cavity generation method of the three-dimensional wave packet trajectory coupling beam provided by the embodiment of the present invention, by combining ...
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Embodiments of the present invention provide a method, device, electronic device and storage medium for extracavity generation of a three-dimensional wave packet trajectory coupled beam. Gaussian beam on the photosensitive surface of the modulator; establish the wave-trace duality theory of the coherent state light field, and determine the target parameters corresponding to the three-dimensional wave packet trajectory coupling beam light field according to the wave-trace duality theory; calculate the phase hologram according to the target parameters template, and write the phase holographic template into the spatial light modulator; the Gaussian beam is irradiated on the spatial light modulator loaded with the phase holographic template image to obtain the target light field. The embodiment of the present invention avoids strict and precise adjustment of the parameters of the laser resonator to meet the harsh conditions, and at the same time can generate a three-dimensional wave packet trajectory coupling beam in a larger range, more stable and more controllable, with convenient operation and flexible customization Advantages of light fields.
Description
Method and device for extra-cavity generation of three-dimensional wave packet trajectory coupled beam technical field The present invention relates to the field of light field regulation, in particular to a kind of extra-cavity generating method of three-dimensional wave packet trajectory coupling beam methods, devices, electronic equipment and storage media. Background technique Light field regulation generally refers to intensity and phase modulation of the spatial distribution of the light field to obtain a specific strong It is widely used in optical communication, optical micro-manipulation, special processing, quantum optics and other fields. SU (2) As a special light source reflecting quantum-classical correlation, coherent state beams have extremely rich horizontal models. It can be used in the fields of optical manipulation quantum optics, microparticle manipulation and quantum communication. The only way to generate SU(2) coherent state in the prior art...
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IPC IPC(8): G02B27/09G02B5/32
CPCG02B27/0938G02B27/0927G02B5/32
Inventor付星申艺杰万震松
OwnerTSINGHUA UNIV