All-optical microwave multiplier based on non-linear polarization rotation effect

A microwave frequency multiplier and polarization rotation technology, applied in the field of microwave photonics, can solve the problems of low conversion efficiency, difficult high-frequency microwave signals, limited wavelength of optical carrier, etc., and achieve the effect of high conversion efficiency

Active Publication Date: 2012-07-18
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0006] The purpose of the present invention is to provide an all-optical microwave frequency multiplier based on the nonlinear polarization rotation effect, which can solve the problem that the existing optical microwave and up-conversion schemes are diffi

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  • All-optical microwave multiplier based on non-linear polarization rotation effect
  • All-optical microwave multiplier based on non-linear polarization rotation effect
  • All-optical microwave multiplier based on non-linear polarization rotation effect

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Embodiment Construction

[0033] see figure 1 As shown, the present invention provides an all-optical microwave frequency multiplier, comprising:

[0034] A first continuous optical semiconductor laser a, whose output wavelength corresponds to the optical fiber communication band, and is used to output signal light.

[0035] A first polarization controller b, one end of which is connected to the first continuous optical semiconductor laser a for controlling the polarization state of the signal light.

[0036] An electro-optical intensity modulator c, whose port 1 is connected to the other end of the first polarization controller b, the electro-optic intensity modulator c is an InP-based electroabsorption modulator, a Mach-Zehnder intensity modulator of lithium niobate crystal, a silicon-based A microring intensity modulator or a Mach-Zehnder intensity modulator, when the first polarization controller b controls the polarization state of the signal light output by the first continuous optical semicondu...

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Abstract

The invention discloses an all-optical microwave multiplier based on the non-linear polarization rotation effect. The all-optical microwave multiplier comprises a first continuous photo-semiconductor laser device, a first polarization controller, an electro-optical intensity modulator, a microwave signal source, a second continuous photo-semiconductor laser device, a second polarization controller, an optical amplifier, a third polarization controller, an optical coupler, a non-linear photoelectric device, a band-pass filter, a polarization beam splitter, an optical circulator, an optical fiber grating, a first photoelectric detector and a second photoelectric detector, which are connected in series. According to the all-optical microwave multiplier based on the non-linear polarization rotation effect, the technical problems that the traditional photo-generated microwave and up-conversion scheme is difficult to get rid of the dependence on a high-frequency external microwave source, the wavelength of an optical carrier of a generated signal is limited, the conversion efficiency is low and even a high-frequency microwave signal is difficultly generated and the like, can be solved.

Description

technical field [0001] The invention belongs to the field of microwave photonics, and more specifically relates to an all-optical microwave frequency multiplier based on the nonlinear polarization rotation effect of highly nonlinear photoelectric devices. Background technique [0002] The International Telecommunication Union has launched the collection of 4G mobile communication technology standards in 2008, which officially opened the prelude to the new generation of broadband wireless mobile communication technology standards and industry development competition. With the popularization of information network applications and the increase in people's demand for interactive and multimedia information services, the convenient and flexible wireless communication network has become the most promising member of the access network, but at the same time, The huge amount of information also poses a great challenge to the load capacity of the current frequency band. In order to av...

Claims

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Application Information

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IPC IPC(8): H01S1/02G02F1/37G02F1/39
Inventor 郑建宇祝宁华刘建国王礼贤梁洪刚
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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