FCSEL that frequency doubles its output emissions using sum-frequency generation
OwnerJoseph Reid Henrichsinventor
Life of this patent
Estimating the term…
Abstract
A “Folded Cavity Surface Emitting Laser” (FCSEL) sum frequency generating device capable of generating a second harmonic at room temperatures with high efficiency and output power, while having a small size, low energy consumption, and a low manufacturing cost. A FCSEL sum frequency generating semiconductor diode laser has a multilayered structure that comprises a mode discriminating polyhedral shaped prism waveguide, which is located at one end of two light emitting diodes, a partial photon reflecting mirror, which is located at the opposite end of the two light emitting diodes, and a phase-matching sum-frequency generating superlattice, which is located between the polyhedral shaped prism waveguide and the partial photon reflecting mirror.
Claims33
A surface emitting laser, comprising:
- first and second active regions, wherein each active region includes:
- a first graded confinement cladding layer;
- a second graded confinement cladding layer;
- and
- an active gain area between the first and second graded confinement cladding layers;
- an internally reflecting reflector assembly adjacent the first active region;
- and
- a first semiconductor superlattice structure adjacent the second active region for doubling the frequency of intra-cavity photonic radiation of the surface emitting laser.
A device, comprising an array of surface emitting lasers, wherein each surface emitting laser includes:
- first and second active regions, wherein each active region includes:
- a first graded confinement cladding layer;
- a second graded confinement cladding layer;
- and
- an active gain area between the first and second graded confinement cladding layers;
- an internally reflecting reflector assembly adjacent the first active region;
- and
- a first semiconductor superlattice structure adjacent the second active region for doubling the frequency of intra-cavity photonic radiation of the surface emitting laser.
Dependencies are inferred from the claim text.