Vertical external cavity surface emitting laser (VECSEL)
AssigneeSamsung Electronics Co., Ltd.
InventorsJun-ho Lee, Taek Kim, Sang-moon Lee
Life of this patent
Estimating the term…
Abstract
The VECSEL includes: a heat spreader dissipating generated heat; a laser chip that is disposed on the heat spreader and is excited by a pump beam of a predetermined wavelength to emit a beam of a first wavelength; a Second Harmonic Generation (SHG) crystal that is disposed on the laser chip or the heat spreader and converts the laser beam of the first wavelength emitted from the laser chip into a beam having a second wavelength that is one-half the first wavelength; and a planar external cavity mirror that is directly formed on the SHG crystal and has a predetermined transmittance with respect to the beam of the second wavelength.
Claims19
A VECSEL (Vertical External Cavity Surface Emitting Laser) comprising:
- a heat spreader dissipating generated heat;
- a laser chip that is disposed on the heat spreader and is excited by a pump beam of a predetermined wavelength to emit a beam of a first wavelength;
- an SHG (Second Harmonic Generation) crystal that is disposed on the laser chip and converts the laser beam of the first wavelength emitted from the laser chip into a beam having a second wavelength that is one-half the first wavelength;
- and
- a planar external cavity mirror that is directly formed on the SHG crystal and has a predetermined transmittance with respect to the beam of the second wavelength.
A VECSEL (Vertical External Cavity Surface Emitting Laser) comprising:
- a laser chip that is excited by an external pump beam to emit light of a first wavelength;
- a heat spreader that is disposed on the laser chip and dissipates heat away from the laser chip;
- an SHG (Second Harmonic Generation) crystal that is disposed on the heat spreader and converts the laser beam of the first wavelength emitted from the laser chip into a beam having a second wavelength that is one-half the first wavelength;
- and
- a planar external cavity mirror that is directly formed on the SHG crystal and has a predetermined transmittance with respect to the beam of the second wavelength.
A VECSEL (Vertical External Cavity Surface Emitting Laser) comprising:
- a laser chip that is excited by an external pump beam to emit light of a first wavelength;
- a heat spreader that is disposed on the laser chip and dissipates heat away from the laser chip;
- an SHG (Second Harmonic Generation) crystal that is disposed on one of (1) the heat spreader and (2) the laser chip and converts the laser beam of the first wavelength emitted from the laser chip into a beam having a second wavelength that is one-half the first wavelength;
- and
- a planar external cavity mirror that is directly formed on the SHG crystal and has a predetermined transmittance with respect to the beam of the second wavelength.
Dependencies are inferred from the claim text.