Millijoule femtosecond pulses at 1937 nm from a diode-pumped ring cavity Tm:YAP regenerative amplifier

Rezvani, Seyed Ali; Suzuki, Makoto; Malevich, Pavel; Livache, Clément; Montgolfier, J.; Nomura, Yutaka; Tsurumachi, Noriaki; Baltuška, Andrius; Fuji, Takao

doi:10.1364/oe.26.029460

Cited by 25 publications

(8 citation statements)

References 46 publications

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“…A wide variety of optical modulators are used in laser applications [1][2][3][4][5][6][7]. However, only modulators based on electro-optic and acousto-optic principles are used for high power laser system applications.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Piezoelectric Ringing Frequency Response of Beta Barium Borate Crystals

Sinkevičius

Bielskis

2019

Crystals

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The piezoelectric ringing phenomenon in Pockels cells based on the beta barium borate crystals was analyzed in this work. The investigation results show that piezoelectric ringing is caused by multiple high voltage pulses with a frequency in the range from 10 kHz up to 1 MHz. Experimental investigation of frequency response and Discrete Fourier transformation was used for analysis. The method of piezoelectric ringing investigation based on the analysis of difference of real and simulated optical signals spectrums was proposed. The investigations were performed for crystals with 3 × 3 × 25 mm, 4 × 4 × 25 mm and 4 × 4 × 20 mm dimensions. It was estimated that piezoelectric ringing in the beta barium borate crystal with dimensions of 3 × 3 mm × 25 mm occurred at the 150, 205, 445, 600 and 750 kHz frequencies of high voltage pulses.

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Section: Introductionmentioning

confidence: 99%

Investigation of Piezoelectric Ringing Frequency Response of Beta Barium Borate Crystals

Sinkevičius

Bielskis

2019

Crystals

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“…The 1937-nm pump pulses used in our scheme were derived from an updated version of the Tm:YAP regenerative amplifier [48], operating under a 10-kHz repetition rate. Figure 1 depicts the schematic of the experimental setup.…”

Section: Methodsmentioning

confidence: 99%

“…The regenerative amplifier was capable of providing 0.122 mJ of pulse energy with a 360-fs pulse duration after 45 round trips, at a crystal temperature of −20 • C. The regenerative amplifier chamber was purged with nitrogen to reduce the effect of absorption from the water molecules [48,49]. The output pulses of the amplifier were recorded with a resolution of 0.04 nm using a spectrum analyzer (Yokogawa-AQ6375 by Yokogawa Meters & Instruments Corporation, Tokyo, Japan).…”

Section: Methodsmentioning

confidence: 99%

Generation and Characterization of Mid-Infrared Supercontinuum in Bulk YAG Pumped by Femtosecond 1937 nm Pulses from a Regenerative Amplifier

2019

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We have demonstrated the generation of supercontinuum (SC) pulses in bulk, using femtosecond pulses directly derived from a Tm:YAP regenerative amplifier. The SC spans from 380 nm–4 μ m. Such an SC combined with the applied 1937-nm pump pulse can be used in a mid-infrared optical parametric amplifier (MIR-OPA). A full characterization of the phase and stability of the SC provides important insight into the performance of such MIR-OPA systems. Using cross-correlation frequency-resolved optical gating (XFROG), we characterized the properties of the MIR section of the SC that can be used as a seed pulse in an MIR-OPA system. The pulse-to-pulse instability rooted in the intrinsic properties of the self-phase modulation process was observed in the retrieved trace and spectrum of the SC. In addition, the effect of the pump pulse quality was studied on the obtainable SC pulses.

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“…The key parts in the CPA system include pulse stretcher, laser amplifier and pulse compressor. Due to the wavelength of 2 µm far beyond most standard commercialized fiber zero-dispersion wavelength (ZDW), such as standard single-mode fibers (SMF) and fluoride fibers, and normally in their anomalous dispersion region; the most reported 2 µm CPA systems adopted the stretchers are mainly the traditional bulk grating configuration such as Offner-type stretcher, Martinez-type stretcher and chirped volume Bragg grating (CVBG) stretcher [20][21][22][23]. In 2016, C. Gaida et al demonstrated a 2 µm CPA system, in which the seed pulses were stretched in an Offner-type stretcher to 1 ns, and the power was amplified to 35.8 W [20].…”

Section: Introductionmentioning

confidence: 99%

“…In 2016, C. Gaida et al demonstrated a 2 µm CPA system, in which the seed pulses were stretched in an Offner-type stretcher to 1 ns, and the power was amplified to 35.8 W [20]. In 2018, S. A. Rezvani et al used a Martinez-type stretcher in a Tm:YAG crystal based regenerative amplifier, in which the pulse duration was stretched to 100 ps [21]. In 2020, J. Huang et al stretched the 3 μm pulse duration from 126 fs to 13 ps by using a Martinez-type stretcher in an Er: ZBLAN fiber-based nonlinear CPA system [22].…”

Section: Introductionmentioning

confidence: 99%

The Adoption of Chalcogenide Glass Fiber as Pulse Stretcher in an All-Fiber Structured 2 μm Chirped Pulse Amplification System

et al. 2021

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We present the development of an As2S3 fiber-based reusable inline optical connector; and, for the first time to the best of our knowledge, integrated it into a 2 μm chirped pulse amplification system as the pulse stretcher. By this mechanism, a near 20 times pulse stretching ratio was achieved in 0.5 m-long this As2S3 fiber and the introduction of insertion loss as low as 2.84 dB while it was connected with silica fiber. After the follow-up fiber amplification and self-compression mechanism, the laser average output power was boosted to 1.97 W and pulse duration was optimized to 2.53 ps. Moreover, to further inspect the laser pulse property, the pulses were then delivered into a 5.3 m-long ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN) fiber which was fusion spliced to SM1950 fiber. Thanks to the 0.4-dB low fusion splice loss between these fibers, a 1.56-W supercontinuum source with bandwidth of 1.93-3.50 μm is obtained. The measured two hours of root-mean-square value of power fluctuation of this laser source is 0.13%, indicating an ultra-high long-term power stability. This work will lay a solid foundation in the realization of the all-fiber structured high-power thulium-doped fiber amplifier with high compactness.

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Millijoule femtosecond pulses at 1937 nm from a diode-pumped ring cavity Tm:YAP regenerative amplifier

Cited by 25 publications

References 46 publications

Investigation of Piezoelectric Ringing Frequency Response of Beta Barium Borate Crystals

Investigation of Piezoelectric Ringing Frequency Response of Beta Barium Borate Crystals

Generation and Characterization of Mid-Infrared Supercontinuum in Bulk YAG Pumped by Femtosecond 1937 nm Pulses from a Regenerative Amplifier

The Adoption of Chalcogenide Glass Fiber as Pulse Stretcher in an All-Fiber Structured 2 μm Chirped Pulse Amplification System

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