Journal ArticleDOI
Experimentally confirmed design guidelines for passively Q-switched microchip lasers using semiconductor saturable absorbers
G.J. Spuhler,Rüdiger Paschotta,R. Fluck,B. Braun,M. Moser,G. Zhang,Emilio Gini,Ursula Keller +7 more
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TLDR
In this article, the authors presented a model for passively Q-switched microchip lasers and derived simple equations for the pulse width, repetition rate, and pulse energy, which can be varied in large ranges by adoption of the parameters of the semiconductor saturable-absorber mirror and choice of the appropriate gain medium.Abstract:
We present a model for passively Q-switched microchip lasers and derive simple equations for the pulse width, repetition rate, and pulse energy. We experimentally verified the validity of the model by systematically varying the relevant device parameters. We used the model to derive practical design guidelines for realizing operation parameters that can be varied in large ranges by adoption of the parameters of the semiconductor saturable-absorber mirror and choice of the appropriate gain medium. Applying these design guidelines, we obtained 37-ps pulses, which to our knowledge are the shortest pulses ever generated in a passively Q-switched solid-state laser.read more
Citations
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Journal ArticleDOI
Computer-aided analysis of electronic circuits: Algorithms and computational techniques
TL;DR: One of the books that can be recommended for new readers is computer aided analysis of electronic circuits algorithms and computational techniques, which is not kind of difficult book to read.
Journal ArticleDOI
Q-switched fiber laser based on transition metal dichalcogenides MoS 2 , MoSe 2 , WS 2 , and WSe 2
TL;DR: It is found that MoSe(2) exhibits highest modulation depth with similar preparation process among four saturable absorbers, which demonstrates the feasibility of TMDs to Q-switch fiber laser effectively.
Journal ArticleDOI
Passively modelocked surface-emitting semiconductor lasers
Ursula Keller,Anne C. Tropper +1 more
TL;DR: In this paper, the physical principles of ultrashort pulse generation in VECSELs are discussed, considering the role played by the semiconductor quantum well gain structure, and the saturable absorber.
Journal ArticleDOI
Optical characterization of semiconductor saturable absorbers
TL;DR: In this paper, the key SESAM parameters such as saturation fluence, modulation depth, and nonsaturable losses are measured with a high accuracy to obtain stable pulse generation for a given laser.
Journal ArticleDOI
A Leaky Integrate-and-Fire Laser Neuron for Ultrafast Cognitive Computing
TL;DR: An original design for a neuron-inspired photonic computational primitive for a large-scale, ultrafast cognitive computing platform that exhibits excitability and behaves analogously to a leaky integrate-and-fire (LIF) neuron is proposed.
References
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Book
Solid-state laser engineering
TL;DR: In this article, the characteristics, design, construction and performance of solid-state lasers are discussed from an industrial perspective, focusing on engineering and practical considerations; phenomenological aspects using models are preferred to abstract mathematical derivations.
Journal ArticleDOI
Semiconductor saturable absorber mirrors (SESAM's) for femtosecond to nanosecond pulse generation in solid-state lasers
Ursula Keller,K.J. Weingarten,Franz X. Kärtner,D. Kopf,B. Braun,I.D. Jung,R. Fluck,C. Honninger,Nicolai Matuschek,J. Aus der Au +9 more
TL;DR: In this paper, the design requirements of SESAM's for stable pulse generation in both the mode-locked and Q-switched regime were reviewed, and the combination of device structure and material parameters provided sufficient design freedom to choose key parameters such as recovery time, saturation intensity, and saturation fluence.
Journal ArticleDOI
Solid-state low-loss intracavity saturable absorber for Nd:YLF lasers : an antiresonant semiconductor Fabry-Perot saturable absorber
TL;DR: A new low-loss fast intracavity semiconductor Fabry-Perot saturable absorber operated at anti-resonance both to start and sustain stable mode locking of a cw-pumped Nd:YLF laser is introduced.
Journal ArticleDOI
Computer-aided analysis of electronic circuits: Algorithms and computational techniques
TL;DR: One of the books that can be recommended for new readers is computer aided analysis of electronic circuits algorithms and computational techniques, which is not kind of difficult book to read.