scholarly journals Theoretical Modeling of Multi-Channel Intracavity Spectroscopy Technology Based on Mode Competition in Er-Doped Fiber Ring Laser Cavity

Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2539 ◽  
Author(s):  
Haiwei Zhang ◽  
Liangcheng Duan ◽  
Yan Zhao ◽  
Lifang Xue ◽  
Pengbo Jiang ◽  
...  
Keyword(s):  
Laser Cavity ◽  
Theoretical Modeling ◽  
Mode Competition ◽  
Rate Equations ◽  
Competition Effect ◽  
Fiber Ring ◽  
Intracavity Spectroscopy ◽  
Sensing System ◽  
Er Doped ◽  
Experimental Absorption

An analytical model for analyzing multi-channel intracavity spectroscopy technology (ICST) is established based on rate equations of Er-doped fiber laser. With the consideration of the amplified spontaneous emission, how the mode competition influences the iterative process for a stable output is analyzed. From the perspective of iterative times, the sensitivity-enhanced mechanism of the ICST is explained. Moreover, the theoretical modeling is employed to analyze the role that the mode-competition effect plays in switching the sensing channel automatically. It is demonstrated that, owing to the mode-competition effect in the laser cavity, the modulation of the cavity loss can be used to tune the sensing channel automatically. Furthermore, our proposed theoretical modeling is verified using a multi-channel ICST sensing system. It is indicated that the calculated estimates agree well with those data from the experimental absorption spectra. The principle will play a significant role in realizing the multiplexing of ICST.

scholarly journals Temperature sensor based on Er-doped Cascaded-Peanut Taper Structure in-line interferometer in fiber ring laser

2021 ◽  
pp. 1-1
Author(s):  
Weihao Lin ◽  
Fang Zhao ◽  
Li-Yang Shao ◽  
Mang I Vai ◽  
Perry Ping Shum ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
Ring Laser ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Er Doped

In-Fiber Macau Zehnder Interferometer Sensor Based on Er doped Fiber Peanut Structure in Fiber Ring Laser

2021 ◽  
pp. 1-1
Author(s):  
Weihao Lin ◽  
Liyang Shao ◽  
Mang I Vai ◽  
Perry Ping Shum ◽  
Liu Shuaiqi ◽  
...  
Keyword(s):  
Ring Laser ◽  
Zehnder Interferometer ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Er Doped

A tunable narrow-line-width multi-wavelength Er-doped fiber laser based on a high birefringence fiber ring mirror and an auto-tracking filter

2008 ◽  
Vol 281 (1) ◽  
pp. 90-93 ◽  
Author(s):  
Xiu-jie Jia ◽  
Yan-ge Liu ◽  
Li-bin Si ◽  
Zhan-cheng Guo ◽  
Sheng-gui Fu ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Line Width ◽  
Narrow Line ◽  
Fiber Ring ◽  
High Birefringence ◽  
Narrow Line Width ◽  
Multi Wavelength ◽  
Tracking Filter ◽  
Er Doped

All-fiber hybrid displacement-sensing system based on self-mixing interference and intracavity spectroscopy

2021 ◽  
pp. 127578
Author(s):  
Minjia Ren ◽  
Haiwei Zhang ◽  
Pengbo Jiang ◽  
Yan Zhao ◽  
Lifang Xue ◽  
...  
Keyword(s):  
Intracavity Spectroscopy ◽  
Sensing System

scholarly journals In-Fiber Mach–Zehnder Interferometer Based on Er doped Up-Taper and peanut-shaped Fiber Structure in Fiber Ring Laser

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Weihao Lin ◽  
Shengjie Zhou ◽  
Li-Yang Shao ◽  
Mang I Vai ◽  
Perry Ping Shum ◽  
...  
Keyword(s):  
Ring Laser ◽  
Zehnder Interferometer ◽  
Fiber Structure ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Er Doped ◽  
Mach Zehnder Interferometer

Narrow linewidth low frequency noise Er-doped fiber ring laser based on femtosecond laser induced random feedback

2014 ◽  
Vol 105 (10) ◽  
pp. 101105 ◽  
Author(s):  
Yang Li ◽  
Ping Lu ◽  
Farhana Baset ◽  
Zhonghua Ou ◽  
Jia Song ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Ring Laser ◽  
Low Frequency ◽  
Frequency Noise ◽  
Narrow Linewidth ◽  
Low Frequency Noise ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Er Doped

scholarly journals Rate equations model for semiconductor lasers with multilongitudinal mode competition and gain dynamics

2003 ◽  
Vol 39 (10) ◽  
pp. 1229-1237 ◽  
Author(s):  
M. Yousefi ◽  
A. Barsella ◽  
D. Lenstra ◽  
G. Morthier ◽  
R. Baets ◽  
...  
Keyword(s):  
Semiconductor Lasers ◽  
Mode Competition ◽  
Rate Equations
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