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A micro-nano fiber laser based on a phase-shifted micro-nano fiber grating (mpsbg)

A micro-nano optical fiber and laser technology, applied in the direction of lasers, laser components, phonon exciters, etc., can solve the problems of high laser threshold, unsuitable for high photoelectric integration, large volume, etc., to achieve small volume, low cost, Simple operation effect

Active Publication Date: 2018-07-10
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the laser threshold is high and the volume is large, which is not suitable for the high integration of optoelectronics

Method used

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  • A micro-nano fiber laser based on a phase-shifted micro-nano fiber grating (mpsbg)
  • A micro-nano fiber laser based on a phase-shifted micro-nano fiber grating (mpsbg)

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as figure 1 As shown, a micro-nano fiber laser based on a phase-shifted micro-nano fiber grating (MPSBG), including a pump light source 1, a structure 4 based on a phase-shifted micro-nano fiber grating (MPSBG), and a spectrum analyzer 8. The structure 4 based on the phase-shifting micro-nano fiber grating (MPSBG) includes a periodic grating structure 5 formed by etching air holes on the micro-nano fiber by using a focused ion beam, an optical microcavity 6, and ordinary single-mode fibers 2 and 7 ;

[0025] The pump light source 1 emits pulsed laser light with a wavelength of 600 nm, a pulse width of 150 fs, and a repetition rate of 1 kHz.

[0026] The micro-nano fiber in the structure 4 based on the phase-shifting micro-nano fiber grating (MPSBG) is made of a common single-mode fiber (its core diameter is 8.2 μm, the cladding di...

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Abstract

The invention relates to a micro-nano fiber laser based on a microfiber phase-shifted Bragg grating (MPSBG). Air holes are formed through etching by utilizing a focusing ion beam system and therefore an MPSBG is formed. An optical micro-cavity in the middle of the MPSBG is filled with a composite (organic-inorganic) semiconductor crystal material CH3NH3PbI3 based on perovskite type nano-crystals, pulse laser with the wavelength being 60nm, the pulse width being 150fs and the repetition rate being 1kHz is adopted to serve as a pump light source, and thus laser with the wavelength being 788nm can be output. The optical micro-cavity formed by the microfiber phase-shifted Bragg grating (MPSBG) plays strong constraint and reflection roles in light. The micro-nano fiber laser is small in size, low in cost, low in threshold and high in integration, is easy to operate, and is a novel micro-nano fiber laser based on the microfiber phase-shifted Bragg grating (MPSBG). The low-cost, small-size, low-threshold and high integration micro-nano fiber laser can meet demands of all fields, especially the photoelectric integration field, in the future.

Description

technical field [0001] The present invention relates to the technical field of micro-nano fiber lasers, in particular to a micro-nano fiber laser based on a phase-shifted micro-nano fiber grating (Microfiber Phase-Shifted Bragg Grating, MPSBG), which plays an important role in the development and application of micro-nano fiber lasers Its significance and value will serve the future applications in various fields, especially optoelectronic integration and sensors. Background technique [0002] In the current information society, the demand for inter-chip and off-chip data transmission is increasing, and electrical interconnection technology has been difficult to meet this demand, and light has incomparable advantages as an information carrier, so this is of great importance to the large-scale integration of optoelectronics. higher requirement. The laser light source is an important part of the integrated device. Therefore, there is an urgent need for low-threshold, low-cos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/067H01S3/08H01S3/0941
CPCH01S3/06708H01S3/08H01S3/08013H01S3/094042H01S3/0941
Inventor 丁铭胡焱晖代玲玲
Owner BEIHANG UNIV