In one example, a vertical cavity surface emitting laser (VCSEL) may include an active region to produce light at a wavelength, an emission surface to emit the light at the wavelength, a first oxide region spaced apart from the active region by a distance of at least a half-wavelength of the wavelength, a first oxide aperture in the first oxide region, a second oxide region between the first oxide region and the second oxide region, and a second oxide aperture in the second oxide region. The emitted light may have a divergence angle that is based on the respective positions and thicknesses of the first oxide region and the second oxide region.

In various embodiments, laser devices include a thermal bonding layer featuring an array of carbon nanotubes and at least one metallic thermal bonding material.

In one example, a vertical cavity surface emitting laser (VCSEL) may include an active region to produce light at a wavelength, an emission surface to emit the light at the wavelength, a first oxide region spaced apart from the active region by a distance of at least a half-wavelength of the wavelength, a first oxide aperture in the first oxide region, a second oxide region between the first oxide region and the second oxide region, and a second oxide aperture in the second oxide region. The emitted light may have a divergence angle that is based on the respective positions and thicknesses of the first oxide region and the second oxide region.

A semiconductor optoelectronic system contains a primary semiconductor optoelectronic system, a first wavefront, a set of diffracting elements, and a second wavefront. The primary semiconductor electronic system is a single laser of a set of gain chips, bars, or stacks coherently coupled in an external resonator, the system is capable to generate a single vertical mode single lateral mode laser light. The near field on the first wavefront in the immediate vicinity of the system contains illuminated spots and dark spots, the latter dominate. The set of diffracting element transforms the near field of the laser light, and, hence, also the far field pattern, providing a significantly smaller beam divergence and, respectively, a higher brightness.

Provided is a lens curing device for a multi-channel optical module, which cures a lens after arranging the lens on multiple axes between a laser diode and an optical waveguide of the optical module for each channel, the lens curing device including a vacuum collet that picks up the lens, a driver that moves the vacuum collet that picks up the lens and disposes the moved vacuum collet at an arrangement position of a submount, and an optical fiber that is embedded in at least a portion of the vacuum collet while connected to an ultraviolet (UV) light source in a preset wavelength band and transmits light radiated from the UV light source to a UV epoxy applied to a lower end of the lens.

A light emitting device includes: a base member; a first semiconductor laser element disposed on an upper surface of the base member, wherein the first semiconductor laser element is configured to emit laser light from a first light emitting surface; a first light-reflecting member disposed on the upper surface of the base member, wherein the first light-reflecting member has a first light-reflecting surface configured to reflect the first laser light; a second semiconductor laser element disposed on the upper surface of the base member, wherein the second semiconductor laser element is configured to emit laser light from a second light emitting surface; and a second light-reflecting member disposed on the upper surface of the base member, wherein the second light-reflecting member has a second light-reflecting surface configured to reflect the second light.

A system includes at least one laser configured to produce laser light and an optical element configured to produce shaped light responsive to receiving the laser light. The system also includes an optical phase modulator (OPM) optically coupled to the optical element, the OPM configured to modulate the shaped light to produce modulated light, where the optical element is configured to reduce a point spread function of the modulated light in a far field.