Results 1 to 10 of about 125,059 (159)

Evaluation of a nanosecond dissipative soliton resonance fiber laser for multiphoton microscopy [PDF]

open access: yesScientific Reports
Multiphoton microscopy often relies on femtosecond lasers due to their high peak powers and short pulse durations. However, these systems (e.g., Ti:Sapphire) are expensive, complex, and require dispersion compensation to maintain pulse parameters in the ...
Katarzyna Kunio   +4 more
doaj   +2 more sources

Dynamic gain driven mode-locking in GHz fiber laser [PDF]

open access: yesLight: Science & Applications
Ultrafast lasers have become powerful tools in various fields, and increasing their fundamental repetition rates to the gigahertz (GHz) level holds great potential for frontier scientific and industrial applications.
Xuewen Chen   +11 more
doaj   +2 more sources

Shaping Optical Microresonators on the Surface of Optical Fibers With Negative Effective Radius Variations

open access: yesIEEE Photonics Journal, 2021
We examine moderate CO2 laser heating as a method of forming negative effective radius variations in conventional optical fiber. Fiber samples were subjected to focused CO2 laser radiation in the form of 100 ms pulses with power 0.36 to 1.3 W and ...
Dmitry V. Krisanov   +2 more
doaj   +1 more source

Scalable Acoustical Frequency Tagging Coherent Beam Combining Based on Digital Signal Processing

open access: yesIEEE Access, 2023
We present the module of booster amplifier for coherent beam combining Master Oscillator Power Amplifier (MOPA) system to operate with a text narrow-linewidth seed laser. The goal was to achieve a highly modular system, manifested in the ease of changing
Pawel R. Kaczmarek   +2 more
doaj   +1 more source

5.4 W, 9.4 ns Pulse Width, Long-Wave Infrared ZGP OPO Pumped by Ho:YAG MOPA System

open access: yesIEEE Photonics Journal, 2021
We demonstrated a narrow pulse-width long-wave infrared ZnGeP2 (ZGP) optical parametric oscillator (OPO) pumped by a 2.1 μm Ho:YAG master oscillator power-amplifier (MOPA).
Chuan-Peng Qian   +7 more
doaj   +1 more source

Research on the Linear Demodulation Range and Background Noise of Fiber-Optic Interferometer System

open access: yesPhotonics, 2023
The linear demodulation range and background noise of the Michelson interferometer system are investigated with a laser phase noise measurement system.
Weitao Wang   +9 more
doaj   +1 more source

A High-Energy, Narrow-Pulse-Width, Long-Wave Infrared Laser Based on ZGP Crystal

open access: yesCrystals, 2021
In this paper, we present a high-energy, narrow pulse-width, long-wave infrared laser based on a ZnGeP2 (ZGP) optical parametric oscillator (OPO). The pump source is a 2.1 μm three -stage Ho:YAG master oscillator power-amplifier (MOPA).
Chuanpeng Qian   +7 more
doaj   +1 more source

Durability of laser fibers [PDF]

open access: yesWorld Journal of Urology, 1995
In 90 patients treated with laser prostatectomy using the Urolase (n = 50) or Ultraline (n = 40) laser fiber, the fiber-tip durability was investigated. In general the Urolase fiber tips were less damaged than the Ultraline fiber tips. At visual inspection, 62% of the Urolase fiber tips were graded as minimally damaged in comparison with 28% of the ...
Slaa, E. te   +4 more
openaire   +3 more sources

Narrow–linewidth tunable laser source for long-wavelength optical coherence tomography at 1700 nm [PDF]

open access: yesEPJ Web of Conferences
We present a widely tunable laser source with narrowed linewidths at the level of 0.4 – 1.1 nm. The laser source incorporates a comb-profile fiber (CPF) which allows for spectral compression of the tunable optical pulses to the linewidths below 1 nm. The
Szewczyk, Olga   +2 more
doaj   +1 more source

Short cavity DFB fiber laser based vector hydrophone for low frequency signal detection

open access: yesPhotonic Sensors, 2017
A short cavity distributed feedback (DFB) fiber laser is used for low frequency acoustic signal detection. Three DFB fiber lasers with different central wavelengths are chained together to make three-element vector hydrophone with proper sensitivity ...
Xiaolei Zhang   +7 more
doaj   +1 more source

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