Abstract: The present disclosure relates to a short-range communication device (10, 10?, 5 10?) for a personal protective equipment or a personal protective device (200, 210, 220, 230) comprising a transmission unit (20, 20?, 20?) for wirelessly transmitting a voice signal of a user (100, 110, 120, 130, 140, 150, 160) to a receiving unit (40,40?, 40?) over a predetermined distance such that a communication channel is established between the transmission unit (20, 20?, 20?) and the receiving unit (40, 40?, 40?) so that a user (100, 10 110, 120, 130, 140, 150, 160) can hear the voice signal. The present disclosure further relates to a short-range communication system comprising at least two short-range communication devices (10, 10?, 10?) according to the present disclosure and to a method of establishing a short-range communication between such devices (10, 10?, 10?).

Abstract: In vivo visualization systems are described which facilitate tissue treatment by a user in utilizing real time visualized tissue images with generated three-dimensional models of the tissue region of interest, such as the left atrial chamber of a subject's heart. Directional indicators on the visualized tissue as well as the imaging systems may be utilized while other variations may utilize image rotation or manipulation of visualized tissue regions to facilitate catheter control. Moreover, visualized tissue regions may be combined with imaged tissue regions as well as navigational information to further facilitate tissue treatments.

Abstract: Laser treatment apparatus includes one diode-laser providing infrared radiation for the treatment and another diode-laser for providing visible radiation. A lens launches the infrared and visible radiations from the diode-lasers into the entrance face of the optical fiber for transporting the radiations to a treatment location.

Abstract: A separate-confinement heterostructure, edge-emitting semiconductor laser having a wide emitter width has elongated spaced apart intermixed and disordered zones extending through and alongside the emitter parallel to the emission direction of the emitter. The intermixed zones inhibit lasing of high order modes. This limits the slow axis divergence of a beam emitted by the laser.

Abstract: Laser treatment apparatus includes one diode-laser providing infrared radiation for the treatment and another diode-laser for providing visible radiation. A lens launches the infrared and visible radiations from the diode-lasers into the entrance face of the optical fiber for transporting the radiations to a treatment location.

Abstract: A separate-confinement heterostructure, edge-emitting semiconductor laser having a wide emitter width has elongated spaced apart intermixed and disordered zones extending through and alongside the emitter parallel to the emission direction of the emitter. The intermixed zones inhibit lasing of high order modes. This limits the slow axis divergence of a beam emitted by the laser.

Abstract: A separate-confinement heterostructure, edge-emitting semiconductor laser having a wide emitter width has elongated spaced apart intermixed and disordered zones extending through and alongside the emitter parallel to the emission direction of the emitter. The intermixed zones inhibit lasing of high order modes. This limits the slow axis divergence of a beam emitted by the laser.

Abstract: A separate-confinement heterostructure, edge-emitting semiconductor laser having a wide emitter width has elongated spaced apart intermixed and disordered zones extending through and alongside the emitter parallel to the emission direction of the emitter. The intermixed zones inhibit lasing of high order modes. This limits the slow axis divergence of a beam emitted by the laser.

Abstract: An optical pulse-shaper includes a prism, a delay line having positive optical power and a reflective spatial light modulator. In one arrangement the delay line has a selectively variable optical path length for accommodating pulses of different spectral bandwidth and positive optical power is provided by a concave mirror. In another arrangement, the delay line includes a zoom-mirror arranged to provide selectively variable optical power for accommodating pulses of different spectral bandwidth.

Abstract: An optical pulse-shaper includes a prism, a delay line having positive optical power and a reflective spatial light modulator. In one arrangement the delay line has a selectively variable optical path length for accommodating pulses of different spectral bandwidth and positive optical power is provided by a concave mirror. In another arrangement, the delay line includes a zoom-mirror arranged to provide selectively variable optical power for accommodating pulses of different spectral bandwidth.

Abstract: An optical pulse-shaper includes a prism, a delay line having positive optical power and a reflective spatial light modulator. In one arrangement the delay line has a selectively variable optical path length for accommodating pulses of different spectral bandwidth and positive optical power is provided by a concave mirror. In another arrangement, the delay line includes a zoom-mirror arranged to provide selectively variable optical power for accommodating pulses of different spectral bandwidth.

Abstract: A light engine includes a multi-color laser source having a set of semiconductor lasers. A controller synchronizes the operation of the laser source to operate in a color sequential order with a spatial modulator.

Abstract: Arrays of vertical extended cavity surface emitting lasers (VECSELs) are disclosed. The functionality of two or more conventional optical components are combined into an optical unit to reduce the number of components that must be aligned during packaging. A dichroic beamsplitter selectively couples frequency doubled light out of the cavity. In one implementation the dichroic beamsplitter includes at least one prism.

Abstract: An array of surface emitting laser diodes has a series electrical connection of laser diodes. Junction isolation is used to isolate laser diodes in the array.

Abstract: An optical pulse-shaper includes a prism, a delay line having positive optical power and a reflective spatial light modulator. In one arrangement the delay line has a selectively variable optical path length for accommodating pulses of different spectral bandwidth and positive optical power is provided by a concave mirror. In another arrangement, the delay line includes a zoom-mirror arranged to provide selectively variable optical power for accommodating pulses of different spectral bandwidth.

Abstract: In an apparatus, system, and method for generating a projected display, a light source generates red, green, and blue light using arrays of extended cavity surface emitting semiconductor lasers. The beams of individual lasers overlap and have a distribution of optical attributes selected to reduce speckle on a display surface.