High-power low spatial coherence random fiber laser
نویسندگان
چکیده
منابع مشابه
Spatial coherence of random laser emission.
We experimentally studied the spatial coherence of random laser emission from dye solutions containing nanoparticles. The spatial coherence, measured in a double slit experiment, varied significantly with the density of scatterers and the size and shape of the excitation volume. A qualitative explanation is provided, illustrating the dramatic difference from the spatial coherence of a conventio...
متن کاملLaser Cooled High-Power Fiber Amplifier
A theoretical model for laser cooled continuous-wave fiber amplifier is presented. The amplification process takes place in the Tm 3+ -doped core of the fluoride ZBLAN (ZrF4-BaF2LaF3-AlF3-NaF) glass fiber. The cooling process takes place in the Yb 3+ :ZBLAN fiber cladding. It is shown that for each value of the pump power and the amplified signal there is a distribution of the concentration of ...
متن کاملHigh power 2 µm femtosecond fiber laser.
A high power polarization maintaining femtosecond Tm-doped fiber laser system is demonstrated. A chirped fiber Bragg grating with normal dispersion was used to compensate the anomalous dispersion from the regular fiber in the 2 µm seed oscillator to generate mode locked pulses with a pulse repetition rate of 30.84 MHz. After chirped pulse amplification, an amplified power of 78 W was obtained. ...
متن کاملHigh-power ultralong-wavelength Tm-doped silica fiber laser cladding-pumped with a random distributed feedback fiber laser
We demonstrated a high-power ultralong-wavelength Tm-doped silica fiber laser operating at 2153 nm with the output power exceeding 18 W and the slope efficiency of 25.5%. A random distributed feedback fiber laser with the center wavelength of 1173 nm was employed as pump source of Tm-doped fiber laser for the first time. No amplified spontaneous emissions or parasitic oscillations were observed...
متن کاملLow Coherence Fiber Optics for Random Noise Radar
Coherent random noise radar has been developed at the Univei:vity qfNebraska jbr the detection arid identification of shallow subsurface objects such ay land mines. Other application range.sfrom reniote sensing, s.ynthetic aperlzire radar and high-rtmlution interferometer, to covert turget tmcking. i n this paper, we describe the experimental investigation of a novel applicntion of' superfluore...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2019
ISSN: 1094-4087
DOI: 10.1364/oe.27.008738