Dr. Jintao Zhang Profile

Dr. Jintao Zhang

at Heilongjiang Univ

SPIE Involvement:

Author

Publications (8)

Proceedings Article | 24 December 2020 Paper

Polarimetric multilongitudinal-mode fiber laser sensor for strain, temperature, and fiber birefringence measurement

Jiarui Li, Lingchao Bai, Shuo Feng, Xuefeng Chen, Jintao Zhang, Xiujuan Yu

Proceedings Volume 11608, 1160806 (2020) https://doi.org/10.1117/12.2586470

Read Abstract +

Proceedings Article | 23 October 2018 Paper

Multi-parameter sensing system based on a polarimetric fiber ring laser sensor and beat frequency demodulation

Xiujuan Yu, Xuefeng Chen, Yunxin Hu, Jintao Zhang, Shengchun Liu

Proceedings Volume 10821, 1082110 (2018) https://doi.org/10.1117/12.2502003

KEYWORDS: Fiber lasers, Birefringence, Polarization, Sensors, Fiber optics sensors, Temperature metrology, Sensing systems, Demodulation, Fiber Bragg gratings

Read Abstract +

Proceedings Article | 10 January 2018 Paper

A 16-channel multi-longitudinal mode fiber laser sensor array system based on wavelength/frequency division multiplexing

Yunxin Hu, Zhiyong Han, Xiujuan Yu, Xuefeng Chen, Jintao Zhang, Shengchun Liu

Proceedings Volume 10618, 106180T (2018) https://doi.org/10.1117/12.2295288

KEYWORDS: Sensors, Fiber lasers, Multiplexing, Fiber Bragg gratings, Wavelength division multiplexing, Demodulation, Temperature metrology, Signal detection, Dense wavelength division multiplexing, Laser systems engineering

Read Abstract +

The 16-channel multi-longitudinal mode fiber laser sensor array is investigated experimentally by the wavelength/frequency division multiplexing technique. In the proposed sensing system, a 4×4 sensor array is established by a few different coupling-ratio couplers, and four different fiber Bragg gratings (FBG) with different center wavelengths are used as four different sensing units. In each sensor unit, four parallel fiber laser sensors have the same operating wavelengths FBGs, but their effective laser cavity lengths slightly different from each other. Every cavity is formed by a fiber Bragg grating (FBG) serving as one reflection mirror, a piece of erbium-doped fiber (EDF) acting as the gain medium, and a Faraday rotator mirror (FRM) serving as other reflection mirror. When the pump power is higher than threshold value, the 16-channel fiber laser sensor array is stimulated stably. The frequency of the beat signal of the fiber laser sensor with different cavity lengths is used to realize frequency division multiplexing, and the wavelength division multiplexing is realized according to the operation wavelength of the fiber laser. The beat frequency signals are generated on a photodetector(PD), and monitored by a frequency spectrum analyzer(FSA). By tracking the shift of the beat frequency, all of the 16 laser sensors can be demodulated and real-time discriminated. The result of the experiment shows that different channels can be demodulated independently. The applications of the sensor array for strain and temperature measurements are also investigated. The strain or temperature information can be extracted from the change of the beat frequency signals according to the wavelength-frequency division multiplexing and the beat signal demodulation. The proposed hybrid multiplexing system can greatly reduce the weight, volume, and cost of the fiber laser sensors system while increasing the amount of the sensors multiplexable, which making it very competitive in some applications fields requiring large scale arrays such as space vehicles, marine infrastructure systems and constructional engineering.

Proceedings Article | 30 November 2012 Paper

Characteristics of in-fiber Mach-Zehnder interferometer formed by lateral offset splicing

Xiujuan Yu, Ge Li, Shengchun Liu, Jintao Zhang, Xuefeng Chen, Liying Zhang, Yanbiao Liao

Proceedings Volume 8561, 85611P (2012) https://doi.org/10.1117/12.981889

KEYWORDS: Interferometers, Mach-Zehnder interferometers, Single mode fibers, Sensors, Fusion splicing, Refractive index, Cladding, Samarium, Germanium, Lithium

Read Abstract +

Proceedings Article | 7 November 2012 Paper

Hollow-core photonic bandgap fiber Mach-Zehnder interferometer based on a long period grating and an offset-splice joint

Xiujuan Yu, Jian Ju, Wei Jin, Jintao Zhang, Shengchun Liu

Proceedings Volume 8421, 84216T (2012) https://doi.org/10.1117/12.966812

KEYWORDS: Mach-Zehnder interferometers, Interferometers, Temperature metrology, Carbon dioxide lasers, Fusion splicing, Refractive index, Beam splitters, Cladding, Infrared cameras, Sensors

Read Abstract +

Proceedings Article | 9 November 2010 Paper

A fiber laser accelerometer based on the double flexural strips structure

Shengchun Liu, Liying Zhang, Xuefeng Zhu, Jintao Zhang, Xiangfei Chen, Jianchen Cheng

Proceedings Volume 7853, 78533V (2010) https://doi.org/10.1117/12.871782

KEYWORDS: Fiber lasers, Sensors, Fiber Bragg gratings, Structured optical fibers, Interferometers, Signal to noise ratio, Head, Copper, Structural design, Phase shifts

Read Abstract +

Proceedings Article | 21 November 2007 Paper

A novel interrogation technique for time-division multiplexing fiber Bragg grating sensor arrays

Shengchun Liu, Youlong Yu, Jintao Zhang, Sun Fei

Proceedings Volume 6781, 67812M (2007) https://doi.org/10.1117/12.745990

KEYWORDS: Sensors, Fiber Bragg gratings, Switches, Time division multiplexing, Modulators, Modulation, Michelson interferometers, Ferroelectric materials, Sensing systems, Analog electronics

Read Abstract +

Proceedings Article | 28 September 2006 Paper

Multi-channel output of time division multiplexed fiber Bragg grating sensing network based on a cascade electrical switches array

Shengchun Liu, Jintao Zhang, Youlong Yu

Proceedings Volume 6354, 63542G (2006) https://doi.org/10.1117/12.687542

KEYWORDS: Switches, Fiber Bragg gratings, Sensors, Multiplexing, Michelson interferometers, Signal detection, Sensing systems, Modulation, Electrooptic modulators, Signal generators

Read Abstract +

Showing 5 of 8 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years