Correction of sampling errors due to laser tuning
... it changes throughout a wavelength sweep. This information is then used to resample the fringe data from a grid of equal time intervals to a grid of equal frequency intervals [14, 15]. The third technique, the frequency-sampling method, also uses an auxiliary interferometer, but avoids the potential ...
... it changes throughout a wavelength sweep. This information is then used to resample the fringe data from a grid of equal time intervals to a grid of equal frequency intervals [14, 15]. The third technique, the frequency-sampling method, also uses an auxiliary interferometer, but avoids the potential ...
Comparison of the sensitivity of air and dielectric
... cavities [18,19]. The processing of air-hole infiltration can be done at any time after fabrication. It is even possible to address and infiltrate each hole separately [21], allowing further freedom and cavity design but we do not discuss here. Beyond the obvious geometric differences, there is one ...
... cavities [18,19]. The processing of air-hole infiltration can be done at any time after fabrication. It is even possible to address and infiltrate each hole separately [21], allowing further freedom and cavity design but we do not discuss here. Beyond the obvious geometric differences, there is one ...
File
... and also help in emptying the lower laser levels. The molecules that arrive at the levels 3 and 2 decay to the ground state through radiative and collision induced transitions to the lower level 1, which in turn decays to the ground state. The power output of a CO2 laser increases linearly with leng ...
... and also help in emptying the lower laser levels. The molecules that arrive at the levels 3 and 2 decay to the ground state through radiative and collision induced transitions to the lower level 1, which in turn decays to the ground state. The power output of a CO2 laser increases linearly with leng ...
Frequency domain optical parametric amplification - few
... the spectral bandwidth during amplification, generally referred to as gain narrowing. Therefore, the most widespread scheme to generate intense few-cycle pulses thus far relies on external compression in a hollow-core fibre subsequent to the actual laser amplifier3,7, which is limited to a few mJ8. In ...
... the spectral bandwidth during amplification, generally referred to as gain narrowing. Therefore, the most widespread scheme to generate intense few-cycle pulses thus far relies on external compression in a hollow-core fibre subsequent to the actual laser amplifier3,7, which is limited to a few mJ8. In ...
Stable, mode-matched, medium-finesse optical cavity incorporating
... mirror small enough 共approximately tens of micrometers兲 to be mounted on a cantilever. In previous work this issue was partially addressed by forming a cavity between the surface of a cantilever and the cleaved end of an optical fiber.2 Since such a cavity is formed by two parallel-plane surfaces it ...
... mirror small enough 共approximately tens of micrometers兲 to be mounted on a cantilever. In previous work this issue was partially addressed by forming a cavity between the surface of a cantilever and the cleaved end of an optical fiber.2 Since such a cavity is formed by two parallel-plane surfaces it ...
Semiconductor Disk Lasers: Recent Advances in Generation of
... mirror and a semiconductor gain region. The gain region usually includes several quantum-well (QW) or quantumdot (QD) layers separated by spacer/barrier layers. A typical mirror structure consists of a stack of quarter-wavelength semiconductor layers, forming a distributed Bragg reflector (DBR), alt ...
... mirror and a semiconductor gain region. The gain region usually includes several quantum-well (QW) or quantumdot (QD) layers separated by spacer/barrier layers. A typical mirror structure consists of a stack of quarter-wavelength semiconductor layers, forming a distributed Bragg reflector (DBR), alt ...
3.4-?m ZGP RISTRA nanosecond - AS
... for single frequency oscillation, and it was pumped by the first or second harmonic of a single-frequency injection-seeded Nd:YAG laser that had a high-quality flat-topped spatial profile [15]. An important difference for the mid-IR system described here, aside from using ZGP and having longer pump, ...
... for single frequency oscillation, and it was pumped by the first or second harmonic of a single-frequency injection-seeded Nd:YAG laser that had a high-quality flat-topped spatial profile [15]. An important difference for the mid-IR system described here, aside from using ZGP and having longer pump, ...
Quadrature frequency doubling
... 1 Introduction The principles of non- linear optics are often found at play in many contemporary laser applications. Since lasing materials available for practical applications give laser light of only few different wavelengths the laser beam of desired wavelength is commonly achieved with the help ...
... 1 Introduction The principles of non- linear optics are often found at play in many contemporary laser applications. Since lasing materials available for practical applications give laser light of only few different wavelengths the laser beam of desired wavelength is commonly achieved with the help ...
Fabrication and Application of Phase only Holograms for High
... can be either reduced by dilution the base suspension with ethanol or increased via multiple coating runs. In general, it is preferable to keep the number of coating runs as few as possible since each subsequent layer increases the surface roughness Ra by approximately 1 nm with the first coating ha ...
... can be either reduced by dilution the base suspension with ethanol or increased via multiple coating runs. In general, it is preferable to keep the number of coating runs as few as possible since each subsequent layer increases the surface roughness Ra by approximately 1 nm with the first coating ha ...
Mode-locking
Mode-locking is a technique in optics by which a laser can be made to produce pulses of light of extremely short duration, on the order of picoseconds (10−12 s) or femtoseconds (10−15 s).The basis of the technique is to induce a fixed-phase relationship between the longitudinal modes of the laser's resonant cavity. The laser is then said to be 'phase-locked' or 'mode-locked'. Interference between these modes causes the laser light to be produced as a train of pulses. Depending on the properties of the laser, these pulses may be of extremely brief duration, as short as a few femtoseconds.