4results about "Optical beam sources" patented technology

This invention discloses an optical storage method based on a high-speed recording system using a rotating mirror. The method, implemented using a high-speed recording system, includes: 1. Encoding the data to be stored, including data information and recording coordinates, to obtain a corresponding binary code; 2. Adjusting the binary code to obtain a storage code; 3. Calibrating a high-speed digital output card and determining the recording substrate surface; 4. Generating corresponding light intensity waveform data based on the storage code and storing it in the calibrated high-speed digital output card; 5. Calibrating the optical spherical aberration between the objective lens and the recording substrate surface, and controlling the recording laser to perform recording operations in the y-axis direction; 6. Adjusting the focal length offset of the objective lens and repeating step 5 until all storage codes in the z-axis direction are recorded, obtaining three-dimensional volumetric storage data. This invention also provides an optical storage device. The method provided by this invention solves the problem of excessively long data storage time in the prior art, improving the success rate and accuracy of recording.

Laser diodes that include a mirror stack on the light-exit facet. The mirror stack has a reflectivity into the active region that is greater in air than when the laser diode is integrated into an apparatus. Related apparatuses, data storage devices, computing systems, and methods.

The present invention relates to a compact writing and reading head for hyper-speed data recording on ceramic material.

This application provides an optical disc drive and electronic device for solving the technical problem of poor stability of rotating optical discs in the field of optical storage technology. The optical disc drive provided in this application may include a housing, a tray, and a support mechanism. The housing has a receptacle, the inner wall of which has a mounting surface. The tray is located within the receptacle and has a holding surface for holding an optical disc, the holding surface being located opposite the mounting surface. The optical disc drive further includes a rigid sheet, which may be located on at least one of the mounting surface or the holding surface. The support mechanism is located within the receptacle and can suspend the optical disc between the mounting surface and the holding surface, maintaining a gap between the optical disc and the rigid sheet. In the optical disc drive provided in the embodiments of this application, the placement of the rigid sheet effectively reduces the air volume and vortex motion space around the optical disc, thereby reducing vortex turbulence on the optical disc. In this way, the stability and safety of the rotating optical disc are greatly improved.