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We present nonlinear pulse compression of a high-power SESAM-modelocked thin-disk laser (TDL) using an Ar-filled hypocycloid-core Kagome Hollow-Core Photonic Crystal Fiber (HC-PCF). The output of the modelocked Yb:YAG TDL with 127 W average…

When a photo-diode is illuminated by a pulse train from a femtosecond laser, it generates microwaves components at the harmonics of the repetition rate within its bandwidth. The phase of these components (relative to the optical pulse…

Optics · Physics 2012-05-21 W. Zhang , T. Li , M. Lours , S. Seidelin , G. Santarelli , Y. Le Coq

Trapped ions are a well-studied and promising system for the realization of a scalable quantum computer. Faster quantum gates would greatly improve the applicability of such a system and allow for greater flexibility in the number of…

Quantum Physics · Physics 2019-07-24 D. Heinrich , M. Guggemos , M. Guevara-Bertsch , M. I. Hussain , C. F. Roos , R. Blatt

Chirped pulse amplification (CPA) and subsequent nonlinear optical (NLO) systems constitute the backbone of myriad advancements in semiconductor and additive manufacturing, communication networks, biology and medicine, defense and national…

Optics · Physics 2023-04-21 Jack Hirschman , Randy Lemons , Minyang Wang , Peter Kroetz , Sergio Carbajo

In many experiments, the simultaneous emission of multiple wavelengths of FEL (Free-Electron Laser) is significant. For the pulsed-mode FEL facility, we must accelerate multiple electron beams in one microwave pulse, and they may be in…

Accelerator Physics · Physics 2023-10-25 H. K. Li , H. L. Ding , Y. Li , J. F. Zhu , J. W. Han , X. W. Dai , J. Y. Yang , W. Q. Zhang

We demonstrate a fiber system which amplifies and compresses pulses from a gain-switched diode. A Mamyshev regenerator shortens the pulses and improves their coherence, enabling subsequent amplification by parabolic pre-shaping. As a…

Optics · Physics 2017-07-24 Walter Fu , Logan G. Wright , Frank W. Wise

High-energy, narrow-linewidth nanosecond pulses are highly demanding for many applications that require high temporal and spatial coherence. However, the amplification of narrow-linewidth pulses is primarily limited by stimulated Brillouin…

A series of simple and low-cost devices for switching, amplifying, and chirping diode lasers based on current modulation are presented. Direct modulation of diode laser currents is rarely sufficient to establish precise amplitude and phase…

Optics · Physics 2024-12-04 Gianni Buser

We investigate the different facets of ion acceleration by a relativistically intense circularly polarized laser pulse interacting with thin near-critical density plasma targets. Our simulations establish that plasma density gradient and…

Plasma Physics · Physics 2023-07-28 Shivani Choudhary , Sudipta Mondal , Daniele Margarone , Subhendu Kahaly

By engineering the mode spectrum of a Kerr microresonator, we selectively activate nonlinear phase matching amongst broadband parametric gain. At threshold, optical parametric oscillators (OPOs) emerge from vacuum fluctuations in the…

We demonstrate ultrashort pulse generation from a fluoride fiber laser co-doped with holmium and praseodymium. To date the majority of work focused on short pulse generation from this class of fiber laser has employed loss modulators in the…

Optics · Physics 2019-04-01 M. R. Majewski , R. I. Woodward , S. D. Jackson

A high power microwave system based on power combining and pulse compression of conventional klystrons is introduced in this paper. This system mainly consists of pulse modulator, power combiner, driving source of klystrons and pulse…

Accelerator Physics · Physics 2015-12-14 Zheng-Feng Xiong , Huai-Bi Chen , Cheng Cheng , Hui Ning , Chuan-Xiang Tang

Multi-GeV-class laser plasma accelerating modules are key components of laser plasma accelerators, because they can be used as a booster of an upstream plasma or conventional injector or as modular acceleration sections of a multi-staged…

Accelerator Physics · Physics 2018-12-26 Xiangkun Li , Alban Mosnier , Phu Anh Phi Nghiem

We demonstrate a high average power terahertz time-domain (THZ-TDS) spectrometer based on optical rectification in the tilted-pulse front geometry in lithium niobate at room temperature, driven by a commercial, industrial femtosecond-laser…

Optics · Physics 2023-11-01 Celia Millon , Sarah Houver , Clara J. Saraceno

Experimental characterization and comparison of the temporal features of plasma produced by ultrafast (100 fs, 800 nm) and short-pulse (7ns, 1064 nm) laser pulses from a high purity nickel and zinc targets, expanding into a nitrogen…

Plasma Physics · Physics 2015-04-23 N. Smijesh

We present a 100 MHz repetition rate Yb-fiber-laser-pumped synchronously pumped optical parametric oscillator (SPOPO) delivering tunable frequency combs covering almost the entire visible spectral range. By intracavity doubling both the…

Organic nonlinear optical (NLO) crystals have emerged as efficient room-temperature emitters of broadband THz radiation with high electric field strengths. Although initially confined to high-pulse-energy excitation in the millijoule range…

Optics · Physics 2024-08-07 Lukasz A. Sterczewski , Jakub Mnich , Jaroslaw Sotor

Mode-locked ultrashort pulse sources with a repetition rate of up to several tens of gigahertz greatly facilitate versatile photonic applications such as frequency synthesis, metrology, radar, and optical communications. Dissipative Kerr…

Optics · Physics 2024-09-17 Shun Fujii , Koshiro Wada , Soma Kogure , Takasumi Tanabe

We report on the generation of nanosecond mid-infrared pulses having frequency tunability, a narrow linewidth, and a high pulse energy. These pulses are obtained by frequency mixing between injection-seeded near-infrared pulses in potassium…

An ultrabroadband seed source for high-power, high-contrast OPCPA systems at 800 nm is presented. The source is based on post compression in a hollow-core fiber followed by crossed polarized waves (XPW) filtering and is capable of…