Results 181 to 190 of about 171,254 (238)
Some of the next articles are maybe not open access.
Semiconductor Microlaser Linewidths
Physical Review Letters, 1994Semiconductor microdisk laser linewidths are measured for cavity volumes near a cubic wavelength. The linewidths remain near the subthreshold values for pump powers well above threshold in agreement with a microscopic theory that includes the coupled dynamics of the optical emission and the nonequilibrium electron-hole gas in the cavity.
, Mohideen, , Slusher, , Jahnke, , Koch
openaire +2 more sources
Applied Optics, 2021
In this paper, we demonstrate a high-power, narrow-linewidth, polarization-maintaining fiber amplifier with near-diffraction-limited beam quality. By optimizing the phase modulation signal, a nearly top-hat-shaped spectrum was generated for self-pulsing ...
Yanshan Wang +8 more
semanticscholar +1 more source
In this paper, we demonstrate a high-power, narrow-linewidth, polarization-maintaining fiber amplifier with near-diffraction-limited beam quality. By optimizing the phase modulation signal, a nearly top-hat-shaped spectrum was generated for self-pulsing ...
Yanshan Wang +8 more
semanticscholar +1 more source
Linewidth instabilities in narrow-linewidth flashlamp-pumped dye laser oscillators
Applied Optics, 1988Linewidth instabilities in double-longitudinal-mode (250 MHz
F J, Duarte +4 more
openaire +2 more sources
Subhertz-linewidth Nd:YAG laser
Optics Letters, 2004Light from a Nd:YAG laser at 1064 nm is independently stabilized to two Fabry-Perot etalons situated on separate vibration-isolation platforms. A heterodyne beat measurement shows their relative frequency stability to be at the part-in-10(15) level at 5 s and the relative linewidth to be less than 1 Hz.
Stephen A, Webster +2 more
openaire +2 more sources
Narrow-linewidth unstable resonator
Optics Letters, 1988We describe the use of an asymmetric feedback ring in an unstable resonator to obtain arbitrarily narrow-linewidth radiation across the full available aperture. We demonstrate its use with an electric-discharge XeCl laser to produce single-line radiation with a linewidth of 0.15 cm−1.
D, Cooper, L L, Tankersley, J, Reintjes
openaire +2 more sources
Linewidth narrowing of polaritons
Physical Review B, 1996Polaritons are formed when the electromagnetic field couples to excitons in a semiconductor. In their high-quality semiconductor quantum microcavities, Fisher et al. observe an unexpected decrease in the polariton linewidth (the full width at half maximum) near resonance.
, Kinsler, , Whittaker
openaire +2 more sources
Linewidth for fluxon oscillators
Physical Review B, 1982Soliton perturbation theory is used to calculate the fluxon oscillator linewidth arising from fluxon interaction with background radiation. Detailed calculations in the case of an oscillator that is long compared with the Josephson length and for which the radiation field is thermal establish lower bounds for the linewidth of a real oscillator.
SALERNO, Mario, Scott AC
openaire +2 more sources
Nano Letters, 2016 Continuously linewidth tunable, polarisation maintaining, narrow linewidth fiber laser
Fiber Lasers XVI: Technology and Systems, 2019High power polarised narrow linewidth sources are of immense importance in coherent beam combining (increased path length accuracy), spectral beam combining (reduced angular spread), non-linear frequency conversion (increased parametric gain) and remote detection.
B. S. Vikram +4 more
openaire +1 more source
Theory of the Linewidth of Semiconductor Lasers
IEEE Journal of Quantum Electronics, 1982A theory of the spectral width of a single-mode semiconductor laser is presented and used to explain the recent measurements of Fleming and Mooradian on AlGaAs lasers.
C. Henry
semanticscholar +1 more source