RF Optical Comb with Independently Adjustable Bandwidth and Frequency

A radio frequency light and bandwidth technology, applied in the field of radio frequency photonics, which can solve the problems of high noise, inability to independently adjust bandwidth and frequency, and inability to meet the needs of radio frequency multiplexing signals.

Inactive Publication Date: 2020-12-15
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current RF optical comb instruments have complex structures and high noise, and the bandwidth and frequency of each passband formed by combing cannot be adjusted independently, resulting in the inability to meet the needs of different RF multiplexing signals such as voice, image, and data.

Method used

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  • RF Optical Comb with Independently Adjustable Bandwidth and Frequency

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings.

[0011] like figure 1 , a radio frequency optical comb instrument with independently adjustable bandwidth and frequency, comprising: an optical intensity modulator 2, a radio frequency signal generator 3, a first 2×2 optical coupler 31, a second 2×2 optical coupler 32, a doped Erbium fiber amplifier 4, first distributed feedback Bragg laser 51, second distributed feedback Bragg laser 52, first optical isolator 61, second optical isolator 62, first semiconductor optical amplifier 71, second semiconductor optical amplifier 72, the first An optical circulator 81 , a second optical circulator 82 , a first fiber grating 91 , a second fiber grating 92 , a single-mode fiber 11 , a third optical isolator 63 , and a photodetector 13 . The connection of each device is as follows:

[0012] The optical input port of the optical intensity modulator 2 is used as the input port of t...

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Abstract

The invention discloses a radio frequency optical comb instrument with independently adjustable bandwidth and frequency, which is suitable for the field of radio frequency photons. The radio frequencyoptical comb instrument includes: a light intensity modulator (2), a radio frequency signal generator (3), first and second 2*2 optical couplers (31) and (32), an erbium-doped fiber amplifier (4), first and second distributed feedback Bragg lasers (51) and (52), first and second optical isolators (61) and (62), first and second semiconductor optical amplifiers (71) and (72), first and second optical circulators (81) and (82), first and second fiber gratings (91) and (92), a single-mode fiber (11), a third optical isolator (63) and a photoelectric detector (13).

Description

technical field [0001] The invention relates to the field of radio frequency photons, in particular to a radio frequency optical comb instrument with independently adjustable bandwidth and frequency. Background technique [0002] In today's society, the demand for voice, image and data is increasing, and it is more and more urgent to develop and utilize radio frequency signals with higher frequency and larger capacity. Radio frequency signal multiplexing technology is a recognized large-capacity solution. In order to solve the difficulty of effectively extracting each multiplexed radio frequency signal at the receiving end with the increase of multiplexing capacity, a high-performance radio frequency signal optical comb instrument was born. The radio frequency signal optical comb instrument uses the optical signal as the carrier, and can extract the large-capacity multiplexed radio frequency signal at equal intervals to form a combed signal whose channel interval is multiple...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/54H04B10/29
CPCH04B10/29H04B10/54
Inventor 董小伟
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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