VERTILAS GMBH Patent applications |
Patent application number | Title | Published |
20130336351 | Polarization-Stable Surface-Emitting Laser Diode - The present invention relates to a surface-emitting laser diode with an active amplifying region ( | 12-19-2013 |
20130027703 | Luminous Unit - A luminous unit for an optical gas detector, an optical gas detector including the luminous unit, and a method of recording an absorption spectrum in an optical gas detector include a light source for linearly polarised light radiation and a housing with an exit window. A wavelength of the light radiation radiated from the light source is tunable. The light source is arranged in the housing such that the main emission direction (OA) of the light source encloses an inclination angle (φ) of between 10° and 50° with a normal (N) to the main extension plane (HE) of the exit window. The direction of polarisation (P) of the light radiation encloses a rotation angle (θ) of between 22.5° and 67.5° with the plane of incidence on the exit window. | 01-31-2013 |
20100128749 | Vertical-Cavity Surface-Emitting Semiconductor Laser Diode And Method For The Manufacture Thereof - The present invention includes a vertical-cavity surface-emitting semiconductor laser diode having a resonator with a first distributed Bragg reflector, an active zone which has a p-n junction and is embedded into a semiconductor layer sequence, and a second distributed Bragg reflector. The semiconductor laser diode has an emission wavelength λ, wherein a periodic structure is arranged within the resonator as an optical grating made of semiconductive material and dielectric material, the main plane of extension of which is arranged substantially perpendicularly to the direction of emission of the semiconductor laser diode. The periodic structure is in direct contact with at least one of the semiconductor layers embedding the active zone and with at least one of the two distributed Bragg reflectors. | 05-27-2010 |