To improve the indistinguishability, emitters funnel light through an
optical cavity where the photons bounce back and forth, a process that helps match their properties to the cavity.
A coherent light source is fabricated using a DFB laser diode, antireflection coated on one facet side and high-reflection on the other facet side to form an external
optical cavity between an external fiber Bragg grating and DFB laser diode.
The singly resonant optical parametric oscillator (SR-OPO), whose only one wave is in resonance within the
optical cavity, is more stable and of higher maximum output power than the doubly resonant OPO (DR-OPO).
[22] used supercontinuum radiation and a 30 cm long linear
optical cavity formed from broad band mirrors with R > 99% between approx.
A tunnel regenerated coupled multi-active-region large
optical cavity laser with high quality beam.
But instead of resorting to a variety of static optics, Bailey explained, his company developed a faceted LED array that eventually evolved into ArcheType X, which allows users to create their own distribution by rotating individual optics inside the
optical cavity by as much as 355 deg from the axis and tilting the optics from 0 deg up to 70 deg.
Maintaining stable coupling of a microscopic mechanical resonator with an off-chip
optical cavity is challenging due to alignment and drift of components with respect to each other.
Semiconductor lasers are much smaller than traditional gas lasers and thus the
optical cavity, the device that holds the laser within its structure, must also be small.
The underlying principle for laser ink is that liquid crystals can function as the critical components of a laser, of which the key element is the
optical cavity, where light oscillates between opposing mirrors until it reaches the critical energy level, where it breaks out as a fine light beam, Liquid crystals can be configured to act as an equivalent
optical cavity The use of a fluorescent dye determines the colour of the light, while the 'pump' which sets off the oscillation is the input of light from a second laser.