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10 results on '"Chenglin Gu"'

1. An improvement in molecular absorption signals of dual-comb spectroscopy based on optical suppression method

Author

Lian Zhou, Wenxue Li, Xing Zou, Daping Luo, Chenglin Gu, Yang Liu, Zhiwei Zhu, Zhong Zuo, and Zejiang Deng

Subjects
Materials science, Absorption spectroscopy, business.industry, Michelson interferometer, Signal, Spectral line, law.invention, symbols.namesake, Fourier transform, law, symbols, Optoelectronics, Heterodyne detection, business, Absorption (electromagnetic radiation), Spectroscopy
Abstract

We demonstrate a dual-comb spectroscopy with a Michelson interferometer which optically suppresses original spectra of the combs. It yields an absorption signal with absolute intensity enhancement ratio of 51.8 compared with conventional dual-comb spectroscopy.

Published
2019

2. Mid-infrared comb generation of ultrashort pulses tunable between 3.3 and 5.2 μm

Author

Zejiang Deng, Daping Luo, Wenxue Li, Lian Zhou, Chenglin Gu, Gehui Xie, Yang Liu, and Zhiwei Zhu

Subjects
animal structures, Materials science, business.industry, Amplifier, Electric field, Fiber laser, fungi, Mid infrared, Optoelectronics, business, Laser beams
Abstract

We report on a mid-infrared (MIR) comb based on a Yb-fiber self-similar amplifier. The MIR comb has a tunable spectral coverage from 3.3 to 5.2 μm with a maximum average power of 90 mW.

Published
2019

3. Few-cycle mid-infrared ultrafast pulses generation based on continuous-wave seeded optical parametric amplification

Author

Wenxue Li, Xing Zou, Yang Liu, Daping Luo, Zhiwei Zhu, Daowang Peng, Lian Zhou, Zejiang Deng, Chenglin Gu, and Zhong Zuo

Subjects
Optical amplifier, Materials science, business.industry, Mid infrared, Physics::Optics, Laser, Optical parametric amplifier, law.invention, Wavelength, Optics, law, Continuous wave, Seeding, business, Ultrashort pulse, Astrophysics::Galaxy Astrophysics
Abstract

We demonstrated a method to directly produce transform-limited few-cycle mid-infrared pulses at 90 fs duration employing optical parametric amplifier seeded by mid-infrared continuous-wave laser and the wavelength tunable ability is also proved.

Published
2019

4. High-power Femtosecond Optical Frequency Comb

Author

Yang Liu, Daping Luo, Zhiwei Zhu, Zejiang Deng, Lian Zhou, Chenglin Gu, and Wenxue Li

Subjects
Materials science, business.industry, Noise (electronics), Pulse (physics), symbols.namesake, Brillouin scattering, Femtosecond, Phase noise, symbols, Optoelectronics, High harmonic generation, business, Raman scattering, Photonic-crystal fiber
Abstract

We report on an 80-W, 50-fs self-similar-amplification comb and a 100-W, 150-fs chirped-pulse amplification comb. Frequency stability and noise characteristics of two locked pulse trains can confirm the generation of these high-power frequency fiber combs.

Published
2019

5. A compact and robust polarization-maintain fiber laser with a locked repetition rate

Author

Zejiang Deng, Chenglin Gu, Wenxue Li, Chao Wang, Daping Luo, Yang Liu, and Zhiwei Zhu

Subjects
Materials science, business.industry, Physics::Optics, 02 engineering and technology, 021001 nanoscience & nanotechnology, Polarization (waves), 01 natural sciences, Standard deviation, 010309 optics, Optics, Optical fiber amplifiers, Fiber laser, 0103 physical sciences, Fiber ring, Laser mode locking, Physics::Accelerator Physics, 0210 nano-technology, business
Abstract

A compact and robust mode-locked fiber laser with a locked repetition rate is demonstrated in a polarization-maintain fiber ring cavity. The repetition rate is locked at 108 MHz and the standard deviation of the controlled signal is 0.997 mHz in a 10-hours test.

Published
2018

6. Mode-resolved dual-comb spectroscopy with a free-running polarization-maintain fiber laser cavity

Author

Chenglin Gu, Chao Wang, Yangcheng Ou, Zejiang Deng, Yang Liu, Wenxue Li, Zhiwei Zhu, and Daping Luo

Subjects
Materials science, business.industry, Optical testing, Physics::Optics, 02 engineering and technology, 021001 nanoscience & nanotechnology, Polarization (waves), 01 natural sciences, Fourier transform spectroscopy, 010309 optics, Optics, Fiber laser, 0103 physical sciences, Laser mode locking, 0210 nano-technology, business, Spectroscopy
Abstract

A simple and robust dual-comb scheme with different repetition rates is demonstrated from a passively mode-locked polarization-maintain fiber cavity. With mutual coherent properties in a single cavity, mode-resolved spectroscopy is obtained with free-running state.

Published
2018

7. Four-Prism-Pumped All-Gold-Mirror Femtosecond Optical Parametric Oscillator Based on an Yb-doped Fiber Laser

Author

Chenglin Gu, Minglie Hu, Chingyue Wang, Jun Zhao, Wu Liu, and Jintao Fan

Subjects
010302 applied physics, Optical fiber, Materials science, business.industry, 02 engineering and technology, 021001 nanoscience & nanotechnology, Laser, 01 natural sciences, Signal, law.invention, Optical pumping, law, Fiber laser, 0103 physical sciences, Femtosecond, Optical parametric oscillator, Optoelectronics, Prism, 0210 nano-technology, business
Abstract

We report a four-prism-pumped all-gold-mirror idler resonant optical parametric oscillator (OPO) driven by an Yb-fiber femtosecond laser. The idler is tuned from 2560–4180 nm, with the corresponding signal covering 1380–1825 nm.

Published
2018

8. Noise Characteristics of Fiber-Laser Pumped Femtosecond Optical Parametric Generation

Author

Jintao Fan, Minglie Hu, Chenglin Gu, Youjian Song, Jun Zhao, Lu Chai, Wei Chen, and Chingyue Wang

Subjects
Materials science, Computer simulation, Relative intensity noise, business.industry, 01 natural sciences, Noise (electronics), 010309 optics, Optics, Fiber laser, 0103 physical sciences, Femtosecond, 010306 general physics, business, Jitter, Parametric statistics
Abstract

We characterize, for the first time, relative intensity noise and timing jitter properties of the OPG output pulses based on the balanced optical cross-correlator technique, which is in a fairly good agreement with numerical simulation.

Published
2017

9. Relative CEP-Locking Laser Source: Narrowband CW Injection Seeded Optical Parametric Amplifier

Author

Bo Liu, Jun Zhao, Chingyue Wang, Jintao Fan, Minglie Hu, and Chenglin Gu

Subjects
Optical amplifier, Materials science, business.industry, Laser source, Phase (waves), 01 natural sciences, Optical parametric amplifier, 010309 optics, Narrowband, Optics, 0103 physical sciences, Femtosecond, Optoelectronics, Laser amplifiers, Seeding, 010306 general physics, business
Abstract

We demonstrate experimentally a passively relative carrier-envelope phase (CEP)-locking, broadly tunable and robust laser source which is based on narrowband cw injection seeding of a two stage femtosecond optical parametric amplifier (OPA).

Published
2017

10. High Power Femtosecond Fiber Laser Pumped dual-wavelength optical parametric oscillator

Author

Jintao Fan, Chenglin Gu, Minglie Hu, and Chingyue Wang

Subjects
Sum-frequency generation, Materials science, business.industry, Physics::Optics, Optical parametric amplifier, Crystal, Mode-locking, Ultrafast laser spectroscopy, Femtosecond, Physics::Atomic and Molecular Clusters, Optical parametric oscillator, Optoelectronics, Time-resolved spectroscopy, business
Abstract

We reported a dual-wavelength femtosecond optical parametric oscillator (OPO) based on a temperature-tuned LiB305 crystal.

Published
2014

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