Fully positive dispersion dissipative nanosecond pulse-shaping passive mode-locked fiber laser system
A fiber laser, total positive dispersion technology, applied in the field of optics, can solve the problems of complex nanosecond pulse phase, broadening or compression, difficult to change characteristics, etc., to suppress the background noise of spontaneous emission, improve the background noise of spontaneous emission, heat dissipation good effect
Active Publication Date: 2015-10-21
杭州奥创光子技术有限公司
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In recent years, it has also been reported in the literature that long-cavity fiber lasers are used to generate nanosecond pulses, but it has been verified that the characteristics of nanosecond pulses generated by this fiber laser are difficult to change after long-distance transmission, indicating that the nanosecond pulses generated by long cavities have complex phases and cannot be used. Ordinary linear dispersion devices for stretching or compression
Therefore, its application is also limited
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0017] See figure 1 , The novel fiber laser system for generating nanosecond full positive dispersion dissipation mode-locked pulses provided by the present invention includes: full positive dispersion dissipation mode-locked pulse generation subsystem A, pulse stretching subsystem B, and Three-stage pulse amplification subsystem C with filtering characteristics.
[0018] The fully positive dispersion dissipative picosecond pulse generation subsystem A stimulates the pulse stretching subsystem B to generate nanosecond pulses; the three-stage amplifying subsystem C with filtering function amplifies the generated nanosecond pulses To the required power and pulse energy.
[0019] See figure 2 Among them, the fully positive dispersion mode-locked pulse generation subsystem A includes a fiber-coupled semiconductor pump light source 1, a wavelength division multiplexer 2, a ytterbium fiber 3, a polarization dependent isolator 4, and a 70:30 output coupler 5 , Polarization controller 6...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a shaped full positive dispersion dissipative nanosecond pulse passive mode-locking fiber laser system. The system comprises a full positive dispersion dissipative picosecond pulse generation subsystem, a pulse broadening subsystem and a three-stage amplification subsystem with a filtering function, wherein the full positive dispersion dissipative picosecond pulse generation subsystem is connected with the three-stage amplification subsystem with the filtering function through the pulse broadening subsystem. The shaped full positive dispersion dissipative nanosecond pulsed passive mode-locking fiber laser system is high in pulse energy, good in radiating effect, easy to adjust and easy and convenient to operate and can serve as a front-end system of chirped pulse amplification.
Description
Technical field [0001] The invention belongs to the field of optics, and relates to a fiber laser system, in particular to a fully positive dispersion and dissipation nanosecond-level mode-locked pulse fiber laser system that can be shaped. Background technique [0002] Nanosecond-level mode-locked fiber lasers have the advantages of compact structure, low cost, stable performance, simple adjustment, and easy coupling. They have important uses in national defense, military, and scientific research. [0003] Compared with traditional solid-state mode-locked lasers, fiber lasers have unique advantages in the field of mode-locked pulsed lasers due to their own dispersion, nonlinearity, and polarization. The formation mechanism of the dissipative pulse based on full positive dispersion is different from the soliton pulse formed by the balance of group velocity dispersion and self-phase modulation in the conservative state. The soliton pulse energy is limited by the soliton area theory...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/067H01S3/098
Inventor 王屹山李晓辉李成高存孝张伟赵卫牛林全朱少岚沈德元
Owner 杭州奥创光子技术有限公司