View source for JIANGSU NORMAL UNIVERSITY (20240250492). LASER AND METHOD FOR GENERATING ELECTROMAGNETIC WAVE SIGNAL HAVING HIGH PHASE COHERENCE simplified abstract

=LASER AND METHOD FOR GENERATING ELECTROMAGNETIC WAVE SIGNAL HAVING HIGH PHASE COHERENCE=


==Organization Name==

[[:Category:JIANGSU NORMAL UNIVERSITY|JIANGSU NORMAL UNIVERSITY]]


[[Category:JIANGSU NORMAL UNIVERSITY]]

==Inventor(s)==

[[:Category:Jindan Shi of Jiangsu (CN)|Jindan Shi of Jiangsu (CN)]][[Category:Jindan Shi of Jiangsu (CN)]]

[[:Category:Xian Feng of Jiangsu (CN)|Xian Feng of Jiangsu (CN)]][[Category:Xian Feng of Jiangsu (CN)]]

==LASER AND METHOD FOR GENERATING ELECTROMAGNETIC WAVE SIGNAL HAVING HIGH PHASE COHERENCE - A simplified explanation of the abstract==


This abstract first appeared for US patent application 20240250492 titled 'LASER AND METHOD FOR GENERATING ELECTROMAGNETIC WAVE SIGNAL HAVING HIGH PHASE COHERENCE

'''Simplified Explanation''': 
The patent application describes a method for generating an electromagnetic wave signal with high phase coherence using a distributed reflective optical fiber laser resonant cavity.

* A non-polarization-maintaining gain optical fiber and a pair of fiber Bragg gratings are used to form the laser resonant cavity.
* The fiber Bragg gratings are written at both ends of the optical fiber using a femtosecond laser direct-writing and line-etching method.
* Tiny included angles are introduced during the writing process to enhance the performance of the laser resonant cavity.
* The laser resonant cavity generates a three-wavelength laser output signal, leading to the generation of millimeter wave or terahertz wave signals.

'''Key Features and Innovation''':
* Generation of electromagnetic wave signal with high phase coherence.
* Use of distributed reflective optical fiber laser resonant cavity.
* Femtosecond laser direct-writing and line-etching method for writing fiber Bragg gratings.
* Introduction of tiny included angles to improve performance.

'''Potential Applications''':
* Telecommunications
* Radar systems
* Spectroscopy
* Medical imaging

'''Problems Solved''':
* Lack of high phase coherence in electromagnetic wave signals
* Limited performance of traditional optical fiber lasers

'''Benefits''':
* Improved phase coherence
* Enhanced signal quality
* Increased efficiency in signal generation

'''Commercial Applications''':
* High-speed communication systems
* Advanced imaging technologies
* Security screening devices

'''Prior Art''''':
Prior art related to this technology may include research on distributed reflective optical fiber lasers and methods for enhancing phase coherence in electromagnetic wave signals.

'''Frequently Updated Research''':
Researchers may be exploring new materials and techniques to further improve the performance of distributed reflective optical fiber lasers for generating high phase coherence electromagnetic wave signals.

'''Questions about the Technology''':
1. How does the introduction of tiny included angles during the writing process impact the performance of the laser resonant cavity?
2. What are the potential challenges in scaling up this technology for commercial applications?


==Original Abstract Submitted==

a laser and method for generating an electromagnetic wave signal having high phase coherence. a distributed reflective optical fiber laser resonant cavity is formed by a non-polarization-maintaining gain optical fiber and a pair of fiber bragg gratings of which both ends are written by a femtosecond laser direct-writing and line-etching method. during optical fiber grating writing, a tiny included angle is introduced between the projection of a laser line-etching direction on a horizontal plane where a central axis of an optical fiber core is located and a radial direction of the optical fiber core, and a tiny included angle is introduced between the laser line-etching direction and the horizontal plane where the central axis of the optical fiber core is located. the laser resonant cavity generates a three-wavelength laser output signal and eventually a millimeter wave or terahertz wave is generated between the output signals for outputting.



[[Category:H01S3/067]]
[[Category:H01S3/094]]
[[Category:CPC_H01S3/0675]]