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Ultra-wide-band spectrum-interval-adjustable near-infrared comb-spectrum generator

A comb-like spectrum generator, near-infrared technology, applied in the field of information optoelectronics

Inactive Publication Date: 2018-03-13
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of current near-infrared comb generators in terms of volume, power consumption, and complexity, and to propose a near-infrared comb with large frequency coverage, stable frequency, and adjustable spectral interval. Spectrum Generator

Method used

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  • Ultra-wide-band spectrum-interval-adjustable near-infrared comb-spectrum generator

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] A near-infrared comb spectrum generator with ultra-broadband and adjustable spectral interval, such as figure 1 , including frequency stabilized laser 1, optical intensity modulator 2, optical phase modulator 3, radio frequency oscillator 4, frequency multiplier 5, erbium-doped fiber amplifier 6, optical circulator 7, optical bandpass filter 8, optical switch 9. High nonlinear optical fiber 10, spectrum analyzer 11, multi-channel controller 12, arrayed waveguide grating 13, first to Nth adjustable optical reflectors 21, 22, ..., 2N.

[0013] The connection of each device is as follows:

[0014] The output port of the frequency-stabilized laser 1 is connected to the optical input port of the optical intensity modulator 2, the optical output port of the optical intensity modulator 2 is connected to the optical input port of the optical phase modulator 3, and the ...

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Abstract

The invention discloses an ultra-wide-band spectrum-interval-adjustable near-infrared comb-spectrum generator, and belongs to the field of laser technology and ultrahigh accuracy detection. The near-infrared comb-spectrum generator comprises a frequency stabilization laser (1), an optical intensity modulator (2), an optical phase modulator (3), a radio frequency oscillator (4), a frequency multiplier (5), an erbium-doped optical fiber amplifier (6), an optical circulator (7), an optical band pass filter (8), an optical switch (9), a high nonlinear optical fiber (10), a spectrum analyzer (11),a multichannel controller (12), an arrayed waveguide grating (13) and a first adjustable optical reflector to a Nth adjustable optical reflector (21), (22),...,(2N). The number of branch ports of thearrayed waveguide grating (13) is larger than or equal to the number of branch ports of the multichannel controller (12).

Description

technical field [0001] The invention belongs to the information optoelectronic technology, is applicable to the fields of laser technology and optical communication, and particularly relates to a near-infrared comb spectrum generator with ultra-broadband and adjustable spectral interval. Background technique [0002] The near-infrared spectrum is an electromagnetic radiation wave between visible light and mid-infrared. According to the definition of the American Society for Materials Testing, the wavelength range of the near-infrared spectrum is 780-2526nm. In recent years, as optical fiber communication technology adopts 1550nm infrared band for transmission, the near-infrared spectral region has received widespread attention as a unique information. [0003] The near-infrared comb spectrum generator usually consists of an optical oscillator, an amplifier, a nonlinear optical fiber, and a circuit lock. It is a high-efficiency, high-quality and stable light source. At prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/365G02F1/35
CPCG02F1/3501G02F1/365
Inventor 董小伟
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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