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Method and apparatus for alignment of a line-of-sight communications link

專(zhuān)利號(hào)
US10868616B2
公開(kāi)日期
2020-12-15
申請(qǐng)人
OptiPulse Inc.（US NM Albuquerque）
發(fā)明人
John Richard Joseph
IPC分類(lèi)
H04B10/112; H04B10/073; H04B10/116; H04B10/50
技術(shù)領(lǐng)域
laser,mesa,waveguide,optical,gsg,lasing,array,structure,contact,emitting
地域： NM NM Albuquerque

摘要

Techniques are disclosed for aligning an optical transmitter with an optical receiver for a line-of-sight communications link, wherein the optical transmitter comprises a laser array emitter, the laser array emitter comprising a plurality of laser emitting regions, wherein each of a plurality of the laser emitting regions is configured to emit laser light in a different direction such that the laser array emitter is capable of emitting laser light in a plurality of different directions. The system can run produce emissions from different laser emitting regions until a laser emitting region that is in alignment with the optical receiver is found. This aligned laser emitting region can then be selected for use to optically communicate data from the optical transmitter to the optical receiver.

說(shuō)明書(shū)

  • 173 Contact and back of mirror for back emitting laser grid
  • 174 Contact and back of mirror for back emitting laser grid
  • 175 Redirected beams from laser grid

    • Embodiment 8 for US Pat App Pub 2017/0033535

    FIG. 18 shows an eighth embodiment. In FIG. 18, a patterned diffractive grating 184 (this is the opposite angular pattern than FIG. 17's DOE) is placed or etched over the emission points 181 on the backside of the laser wafer in a back emitting VCSEL design which directs the lasing points outward 185 from the grid. From the lens it looks like all the lasers are coming from a single point 186 behind the chip to form a virtual point source where a macro lens 187 can be used to collimate the beam from the virtual converged source behind the chip. FIG. 18 shows:

      • 181 Contact and back of mirror for back emitting laser grid
      • 182 Aperture creating laser characteristics
      • 183 Laser Beam from laser grid
      • 184 Surface of Diffractive Optical Element (DOE) angled for specific total beam grid characteristics
      • 185 Redirected beams from laser grid
      • 186 Converged virtual light source from all beams as seen from lens 187

    權(quán)利要求

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