Developments of mid-infrared optical parametric oscillators for spectroscopic sensing: a review

Peng, Jian

doi:10.1117/1.oe.53.6.061613

Cited by 11 publications

(4 citation statements)

References 118 publications

(101 reference statements)

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“…Another promising approach is to exploit nonlinear frequency down-conversion into the MIR using mature near-infrared laser sources. Thus, optical parametric oscillators (OPOs) and amplifiers (OPAs) [26][27][28][29][30] have become very popular in recent years. Pulse energies reaching up to at least the µJ-level combined with an extremely large tunability allow to cover spectral domains, where laser options are typically scarce or require cryogenic cooling of the gain material.…”

Section: Miranda -A New Ultrafast Workhorse For Mid-infrared Applicationsmentioning

confidence: 99%

A New Generation of Ultrafast Oscillators for Mid-Infrared Applications

Nagl¹

2021

Springer Theses

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The mid-infrared (MIR) spectral range with wavelengths between 2 µm and 20 µm holds tremendous potential for the study of complex biological systems, given the abundance of intense and unique molecular absorption lines that can be detected. Consequently, spectroscopic applications of mid-infrared radiation have garnered enormous attention in recent years. A particularly striking example is the combination of multi-MHz-repetition-rate, few-cycle MIR light sources with electric-field-resolved techniques, enabling the recording of amplitude-and phase-resolved molecular signals with unparalleled specificity and shot noise limited sensitivity. Despite the ever-growing research demand, their widespread use is severely hampered by the lack of low-noise, compact, and ultrafast laser systems.In this dissertation, a new generation of table-top mid-infrared laser sources is presented, bringing cutting-edge laser diode technology and few-cycle Cr 2+ :ZnS/ZnSe solid-state oscillators together for the first time. Not only have these laser systems proven to reliably provide coherent radiation in the 2 µm to 3 µm region, the simultaneous reduction in size and complexity, accompanied by an improved overall efficiency and -most importantly -noise performance, renders this approach as pioneering for future MIR applications.In total, three laser systems are developed, each of them pushing the frontiers of directly diode-pumped laser technology. The first one is driven by a single-emitter indium phosphide laser diode and delivers more than 500 mW of output power combined with pulse durations as short as 45 fs. With this first ever directly diodepumped Kerr-lens mode-locked (KLM) Cr 2+ :ZnS/ZnSe oscillator, experimental results confirm a highly stable operation. In addition, amplitude noise measurements reveal an excellent low-noise performance of the mode-locked laser output.Driven by the desire to match and exceed the performance of more mature fiber-laser-pumped counterparts and also to boost the efficiency of the envisaged downstream applications, the output of two single-emitter pump laser diodes is carefully combined and implemented into a second-generation design. The achieved peak powers are almost three-times higher compared to before, while the low-noise performance of the KLM output is maintained.xii Typically, the design architecture of laser systems used for generating mid-infrared radiation up to several tens of microns includes a sophisticated chain of amplification, pulse compression and parametric conversion stages. Using a powerful few-cycle mid-infrared oscillator as driving laser source instead not only significantly improves the effectiveness of these nonlinear schemes, but could even supersede the need for initial amplification. The presented third-generation system brings the directly diode-pumped Cr 2+ :ZnS/ZnSe solid-state laser technology to a new level; with output peak powers reaching 1 MW and pulse durations as short as 28 fs, direct generation of CEP-stable mid-infrared pulses in a nonlinear optical cryst...

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Section: Miranda -A New Ultrafast Workhorse For Mid-infrared Applicationsmentioning

confidence: 99%

A New Generation of Ultrafast Oscillators for Mid-Infrared Applications

Nagl¹

2021

Springer Theses

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“…e technologies mainly focus on the chromatography and spectrum, such as gas chromatography [16], gas chromatography-mass spectrometry (GC-MS) [17,18], high-performance liquid chromatography [19], near-infrared spectroscopy [20], atomic absorption spectroscopy [21], visible-ultraviolet spectroscopy [22], and fluorescence spectroscopy [23]. In this paper, we adopt GC-MS and midinfrared (MID) spectroscopy technologies to classify the age of Chinese Baijiu.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, we adopt GC-MS and midinfrared (MID) spectroscopy technologies to classify the age of Chinese Baijiu. GC-MS is extensively applied in the field of spirit ingredient detection and accurate qualitative and quantitative analysis [17]. In [18], GC-MS, combined with an electronic nose system, was utilized to characterize the volatile aroma compounds in the Chinese Baijiu and distinguish the difference between different liquor ages.…”

Section: Introductionmentioning

confidence: 99%

Age Discrimination of Chinese Baijiu Based on Midinfrared Spectroscopy and Chemometrics

Wang

2021

Journal of Food Quality

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Baijiu is a traditional and popular Chinese liquor which is affected by the storage time. The longer the storage time of Baijiu is, the better its quality is. In this paper, the raw and mellow Baijiu samples from different storage time are discriminated accurately throughout midinfrared (MIR) spectroscopy and chemometrics. Firstly, changing regularities of the substances in Chinese Baijiu are discussed by gas chromatography-mass spectrometry (GC-MS) during the aging process. Then, infrared spectrums of Baijiu samples are processed by smoothing, multivariate baseline correction, and the first and second derivative processing, but no significant variation can be observed. Next, the spectral date pretreatment methods are constructively introduced, and principal component analysis (PCA) and discriminant analysis (DA) are developed for data analyses. The results show that the accuracy rates of samples by the DA method in calibration and validation sets are 91.7% and 100%, respectively. Consequently, an identification model based on support vector machine (SVM) and PCA is established combined with the grid search strategy and cross-validation methods to discriminate the age of Chinese Baijiu validly, where 100% classification accuracy rate is obtained in both training and test sets.

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“…1,2 Presently, the pulse lasers with nanosecond duration capable of delivering energy in the multijoules class are mainly dominated by bulk solid-state gain medium, such as Nd:YAG crystal and Nd:glass. 1,2 Presently, the pulse lasers with nanosecond duration capable of delivering energy in the multijoules class are mainly dominated by bulk solid-state gain medium, such as Nd:YAG crystal and Nd:glass.…”

Section: Introductionmentioning

confidence: 99%

Polarization beam combination technique for gain saturation effect compensation in high-energy systems

Chen

Peng

et al. 2016

Opt. Eng

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Polarization beam combination technique for gain saturation effect compensation in high-energy systems," Opt. Eng. 55(6), 066111 (2016), Abstract. To compensate for the gain saturation effect in the high-energy laser amplifier, a modified polarization beam combination (PBC) method is introduced to reshape temporal waveform of the injected laser pulse to obtain a controlled high-energy laser pulse shape after amplification. One linearly polarized beam is divided into two orthogonal polarized beams, which spatially recombine together collinearly after propagating different optical paths with relative time delay in PBC structure. The obtained beam with polarization direction being rotated by the following half wave plate is divided and combined again to reform a new beam in another modified polarization beam structure. The reformed beam is injected into three cascaded laser amplifiers. The amplified pulse shape can be controlled by the incident pulse shape and amplifier gain, which is agreeable to the simulation by the Frank-Nodvik equations. Based on the simple method, the various temporal waveform of output pulse with tunable 7 to 20 ns pulse duration can be obtained without interferometric fringes. Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 06/21/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx Optical Engineering 066111-8 June 2016 • Vol. 55(6) Chen et al.: Polarization beam combination technique for gain saturation effect compensation in high-energy systems Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 06/21/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx

show abstract

Developments of mid-infrared optical parametric oscillators for spectroscopic sensing: a review

Cited by 11 publications

References 118 publications

A New Generation of Ultrafast Oscillators for Mid-Infrared Applications

A New Generation of Ultrafast Oscillators for Mid-Infrared Applications

Age Discrimination of Chinese Baijiu Based on Midinfrared Spectroscopy and Chemometrics

Polarization beam combination technique for gain saturation effect compensation in high-energy systems

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