High-repetition-rate femtosecond optical parametric oscillator–amplifier system near 3 μm

Holtom, Gary R.; Crowell, Robert A.; Xie, Xin

doi:10.1364/josab.12.001723

Cited by 30 publications

(5 citation statements)

References 43 publications

(58 reference statements)

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“…While Gary was constructing the laser, Robin Hochstrasser's and Michael Feher's groups claimed IR echo. When Gary finished the laser, nice as it was, 14 I could not deliver the IR echo experiment because it did not provide high enough peak power. This gave me a lot of headaches as all investments were about to go in vain.…”

Section: ■ Postdoctoral Experiencementioning

confidence: 99%

Round-Trip Journey of a Physical Chemist

Xie

2023

J. Phys. Chem. B

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Section: ■ Postdoctoral Experiencementioning

confidence: 99%

Round-Trip Journey of a Physical Chemist

Xie

2023

J. Phys. Chem. B

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“…An OPO with 31 mJ and 87% fundamental to 390 mid-IR conversion efficiency was demonstrated [127]. Potassium titanyle phosphate (KTP) has been used to generate transform limited pulses in the 2.5-4.2 µm [128]; as well as a 250 kHz 160 femtosecond laser [129]. Potassium niobate (KNO) properties [130,131] as a nonlinear crystal were investigated since the 70s [132], although its application for the mid-IR was considered only in the 90s 395 [133].…”

Section: Nonlinear Crystals For the Mid-irmentioning

confidence: 99%

Ultrashort pulse generation in the mid-IR

Pires

Baudisch

Sánchez

et al. 2015

Progress in Quantum Electronics

100

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Recent developments in laser sources operating in the mid-IR (3 -8 µm), have been motivated by the numerous possibilities for both fundamental and applied research. One example is the ability to unambiguously detect pollutants and carcinogens due to the much larger oscillator strengths of their absorption features in the mid-IR spectral region compared with the visible. Broadband sources are of particular interest for spectroscopic applications since they remove the need for arduous scanning or several lasers and allow simultaneous use of multiple absorption features thus increasing the confidence level of detection. In addition, sources capable of producing ultrashort and intense mid-IR radiation are gaining relevance in attoscience and strong-field physics due to wavelength scaling of re-collision based processes. In this paper we review the state-of-the-art in sources of coherent, pulsed mid-IR radiation. First we discuss semi-conductor based sources which are compact and turnkey, but typically do not yield short pulse duration. Mid-IR laser gain material based approaches will be discussed, either for direct broadband mid-IR lasers or as narrowband pump lasers for parametric amplification in nonlinear crystals. The main part will focus on mid-IR generation and amplification based on parametric frequency conversion, enabling highest mid-IR peak power pulses. Lastly we close with an overview of nonlinear post-compression techniques, for decreasing pulse duration to the sub-2-optical-cycle regime.

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“…While mid-infrared pulses have been generated in the idler wave of the system reported by Marangoni et al [11], their main interest was on the near-infrared output and the idler was therefore not further characterized. Currently, most femtosecond mid-infrared OPAs employ 800 nm Ti:sapphire pump sources [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. This is the case for the commercial TOPAS system by Light Conversion Ltd./Coherent Inc. or the more recent results in the wavelength range around 2.1 µm [27,28] or 3-4 µm [29].…”

Section: Introductionmentioning

confidence: 99%

High-repetition-rate femtosecond optical parametric chirped-pulse amplifier in the mid-infrared

2009

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We discuss a dual-stage optical parametric chirped-pulse amplifier generating sub-100-fs pulses in the mid-infrared at a repetition rate of 100 kHz. The system is based on a 1064 nm pump laser and a 3-4 µm difference frequency generation seed source derived from the output of a femtosecond fiber laser amplifier. Both lasers are commercially available, are diode-pumped, compact, and allow for turn-key operation. Here, we focus our discussion on the design and dimensioning of the optical parametric chirpedpulse amplifier. In particular, we review the available gain materials for mid-infrared generation and analyze the impact of different stretching scenarios. Timing jitter plays an important role in short-pulse parametric amplifier systems and is therefore studied in detail. The geometry of the amplifier stages is optimized through a full 3-dimensional simulation with the aim of maximizing gain bandwidth and output power. The optimized system yields output pulse energies exceeding 1 µJ and an overall gain larger than 50 dB. The high repetition rate of the pump laser results in an unprecedented average power from a femtosecond parametric system at mid-infrared wavelengths. First experimental results confirm the design and the predictions of our theoretical model.

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High-repetition-rate femtosecond optical parametric oscillator–amplifier system near 3 μm

Cited by 30 publications

References 43 publications

Round-Trip Journey of a Physical Chemist

Round-Trip Journey of a Physical Chemist

Ultrashort pulse generation in the mid-IR

High-repetition-rate femtosecond optical parametric chirped-pulse amplifier in the mid-infrared

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