Theoretical investigation of an optical fiber amplifier loop for intra-cavity and ring-down cavity gas sensing

Liu, K.; Liu, T.G.; Peng, Gang-Ding; Jiang, Junfeng; Zhang, H.X.; Jia, Dagong; Wang, Y.; Jing, Wencai; Zhang, Y.M.

doi:10.1016/j.snb.2010.02.041

Cited by 37 publications

(15 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where A and B are the coefficients dependent on the parameters of the intra-cavity fiber laser (ICFL) [10]. The gas concentration detection precision based on ICFL depends on the signal-to-noise ratio (SNR) of the output laser.…”

Section: Principle Of Gas Detectionmentioning

confidence: 99%

See 1 more Smart Citation

Improved low concentration gas detection system based on intracavity fiber laser

Zhang

Liu

Jia

et al. 2011

Review of Scientific Instruments

View full text Add to dashboard Cite

The improvement of a low concentration gas detection system based on the intracavity fiber laser is proposed in this paper. The sensitivity of the system is deduced based on Lambert–Beer law. The optimized system was established with the gas cell made elaborately. In order to apply the wavelength sweeping technique, the fiber Bragg grating reflector was substituted by the wavelength independent Faraday rotation reflector. The sensitivity of the system for acetylene detection is reduced to less than 100 ppm by using the average of three absorption spectra. The acetylene detection coefficients of variation with different concentrations are measured. The gas measurement system is validated to detect low concentration gas effectively.

show abstract

Section: Principle Of Gas Detectionmentioning

confidence: 99%

“…(1) and Eq. (3), the sensitivity of gas concentration can be expressed as [10] respectively. The sensitivity will reach 62 ppm with SNR equal to 40 dB, while the detectable gas sensitivity will reach 6 ppm with the SNR equal to 50 dB.…”

Section: Principle Of Gas Detectionmentioning

confidence: 99%

Improved low concentration gas detection system based on intracavity fiber laser

Zhang

Liu

Jia

et al. 2011

Review of Scientific Instruments

View full text Add to dashboard Cite

show abstract

“…5 [5,6]. The system contains an erbium-doped fiber amplifier (EDFA), an Fabry-Perot (F-P) type tunable optical filter, a gas cell, a photo-detector, and an isolator.…”

Section: Gas Concentration Sensing Based On Intra-cavitymentioning

confidence: 99%

“…The researches of Tianjin University are always focused on fiber optical sensing technology and the related detection technologies for many years. And we have received remarkable results in the field of high temperature sensor [1,2], parallel demodulation of extrinsic Fabry-Perot interferometer (EFPI) and fiber Bragg grating (FBG) sensors [3,4], gas concentration sensing technology based on intra-cavity [5,6], distributed sensing based on polarization maintaining fiber (PMF) [7][8][9][10] and so on. Tianjin University has taken on Natural Science Fund of China, 863 project, major programme of National Development Planning Commission, large project of Tianjin, and other provincial or ministerial funds for more than twenty research projects.…”

Section: Introductionmentioning

confidence: 99%

Photonic sensors review recent progress of fiber sensing technologies in Tianjin University

Liu

et al. 2010

Photonic Sens

View full text Add to dashboard Cite

The up to date progress of fiber sensing technologies in Tianjin University are proposed in this paper. Fiber-optic temperature sensor based on the interference of selective higher-order modes in circular optical fiber is developed. Parallel demodulation for extrinsic Fabry-Perot interferometer (EFPI) and fiber Bragg grating (FBG) sensors is realized based on white light interference. Gas concentration detection is realized based on intra-cavity fiber laser spectroscopy. Polarization maintaining fiber (PMF) is used for distributed position or displacement sensing. Based on the before work and results, we gained National Basic Research Program of China on optical fiber sensing technology and will develop further investigation in this area.

show abstract

“…Compare with traditional laser, the tunable fiber ring laser has many merits such as narrow laser linewidth, simple structure, steady working state [1] , and so on, furthermore, the output laser wavelength covers a wide range, it is suitable to the domain of optic fiber communications, laser sensing and measurement [2,3] . Because of the characters such as high gain, wide frequency band, and low noise figure [4] , EDFA is used as gain medium to constitute the tunable fiber ring laser, many research and applies are done on it [5][6][7][8][9] .But most works are about researching the effect of one parameter on system performance; the effect of relationship among each parameter on system performance is seldom researched.…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Study of Tunable Fiber Ring Laser of C+L Band

Dan¹,

Jia²,

Xue³

et al. 2017

dtetr

View full text Add to dashboard Cite

Abstract.A tunable fiber ring laser based on L band EDFA (erbium-doped fiber amplifier) was proposed. It has high signal-to-noise ratio and wide tuning range. The influence factor of the tuning range and the time delay of relaxation oscillation were studied. And the FFP-TF(Fabry-Perot tunable filter) was used as a wavelength selector to produce tunable laser. Experiments show that by using appropriate time-delay and auto-adjusting the intra-cavity loss, the signal-to-noise ratio can be increased and the tunable range can be broadened to C+L band.

show abstract

Theoretical investigation of an optical fiber amplifier loop for intra-cavity and ring-down cavity gas sensing

Cited by 37 publications

References 13 publications

Improved low concentration gas detection system based on intracavity fiber laser

Improved low concentration gas detection system based on intracavity fiber laser

Photonic sensors review recent progress of fiber sensing technologies in Tianjin University

Design and Experimental Study of Tunable Fiber Ring Laser of C+L Band

Contact Info

Product

Resources

About