Review of laser‐diode pumped Ti:sapphire laser

Liu, Han; Sun, Siyuan; Zheng, Li; Wang, Geyang; Tian, Wenlong; Zhang, Dacheng; Han, Hainian; Zhu, Jiangfeng; Wei, Zhiyi

doi:10.1002/mop.32882

Cited by 23 publications

(20 citation statements)

References 83 publications

(152 reference statements)

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“…In recent years, great progress has been made in blue broad-ridge lasers based on the III-nitride material system. [1][2][3] Blue high-power laser diodes have unique advantages for white light generation, [4,5] optical pumping, [6] and industrial processing of metals like copper, [7,8] which has huge importance in the context of electromobility and energy storage.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Lateral and Longitudinal Mode Competition in Blue InGaN Broad‐Ridge Laser Diodes

Uhlig

Kunzmann

Schwarz

2023

Physica Status Solidi (a)

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In blue GaN‐based laser diodes with a 40 μm broad‐ridge waveguide, lateral modes of different order are selectively observed by high‐resolution spectroscopy combined with lateral near‐field scanning. Longitudinal mode clusters contribute to different lateral modes, close above the threshold current. Longitudinal mode competition is observed in each longitudinal mode cluster as intensity modulation and wavelength shift, repeating itself with a frequency of around 60–80 MHz. Despite the spectral separation of the different clusters and different lateral mode order, the mode competition processes share the same frequency and show a stable phase relation, especially at low currents. This indicates coupling of separate mode clusters via the charge carrier density. Due to the lateral modes occurring at separate wavelengths, lateral–longitudinal mode competition is found, which not only causes spectral effects but also time‐dependent periodic variations in the lateral near field.

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Section: Introductionmentioning

confidence: 99%

Characterization of Lateral and Longitudinal Mode Competition in Blue InGaN Broad‐Ridge Laser Diodes

Uhlig

Kunzmann

Schwarz

2023

Physica Status Solidi (a)

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“…Hainian Han, Institute of Physics (CAS), China repetition rates, DCS technology could enable a mapping from broadband optical molecular absorption spectra into the radio frequency (RF) domain, which can be directly detected by a photodetector (PD). Traditionally, DCS technology has been conducted by mode-locked Ti: sapphire lasers [29,30], fiber lasers [31][32][33] and electro-optical (EO) frequency combs [34], which require bulky table-top setups. DCS with microcombs (dual-microcomb spectroscopy) has the capacity for miniaturization and portability.…”

Section: Open Access Edited Bymentioning

confidence: 99%

Stable soliton dual-microcomb generation via sideband thermal compensation for spectroscopy

et al. 2022

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Microcombs—generated by coherently pumping nonlinear microresonators—have emerged as a state-of-the-art scheme at the chip scale. Dual-comb spectroscopy (DCS) technology further takes advantage of the miniature system, and has been demonstrated as a powerful tool for real-time and broadband optical sampling of molecular spectra. Here, a novel soliton dual-microcomb generation method by rapid frequency sweep and sideband thermal compensation is put forward, and dual-microcomb optical spectra range beyond 200-nm has been successfully demonstrated in two microresonators with moderate quality factors. Compared to the dual-microcomb with a weak thermal compensation effect, the demonstrated dual-microcomb shows much lower-noise RF beat notes (<10 kHz) and smaller Allan deviations (1.0 × 10–4 at 1 ms) by increasing sideband power. Moreover, the dual-microcomb has been utilized in the gas absorption detection of H12CN for demonstration with high signal-to-noise ratios (SNRs) and fast acquisition rates. This work also lays a technical foundation for other dual-microcomb applications of ranging and microwave photonics.

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“…Since the first modelocking experiments in the 60s 1 and the advent of the Ti:Sapphire laser 2 , 3 , ultrafast laser pulses have found a significant number of applications in a wide variety of areas. In parallel to this, one of the new hotbed of laser-based applications is the mid-infrared (MIR) spectral range, which is conveniently defined in the context of optical fiber as spanning between 2.5–20 µm 4 .…”

Section: Introductionmentioning

confidence: 99%

Femtosecond tunable solitons up to 4.8 µm using soliton self-frequency shift in an InF3 fiber

Gauthier

Olivier

Paradis

et al. 2022

Sci Rep

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A tunable ultrashort soliton pulse source reaching up to 4.8 µm is demonstrated based on a 2.8 µm femtosecond fiber laser coupled to a zirconium fluoride fiber amplifier followed by a small core indium fluoride fiber. This demonstration is extending by 300 nm the long wavelength limit previously reported with soliton self-frequency shift (SSFS) sources based on fluoride fibers. Our experimental and numerical investigation highlighted the spectral dynamics associated with the generation of highly redshifted pulses in the mid-infrared using SSFS enhanced by soliton fission. This study is intended at providing a better understanding of the potential and limitations of SSFS based tunable femtosecond fiber sources in the 3–5 µm spectral range.

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Review of laser‐diode pumped Ti:sapphire laser

Cited by 23 publications

References 83 publications

Characterization of Lateral and Longitudinal Mode Competition in Blue InGaN Broad‐Ridge Laser Diodes

Characterization of Lateral and Longitudinal Mode Competition in Blue InGaN Broad‐Ridge Laser Diodes

Stable soliton dual-microcomb generation via sideband thermal compensation for spectroscopy

Femtosecond tunable solitons up to 4.8 µm using soliton self-frequency shift in an InF3 fiber

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