Optical Drive Technologies
Before working at Optics for Hire, several of our engineers worked on optical drive technologies. Starting in the late 1970s, they led and worked on programs creating equivalents of the laser disc, CD, and CDR formats. These were commercialized in the former USSR.
In the late 1990s, these same engineers worked on multi layer optical media drives for the former Constellation 3D. We have continued to work on optical data storage systems, most recently with Holigraphic data storage and the LaserCard format.
In the list below, some of the key technologies developed by the optical design team are described and projects from the last 30 years are listed.
Technology Developed
Focus servo system
Tracking servo system
Disc tilt servo compensation system
Disc rotation stabilization/or control system
Pickup head radial moving servo
Read only pickup optics
Read/write pickup optics
Focusing objective
Objective suspension
Voice coil motors for focusing and tracking servos
Optical sensors for focusing, tracking, tilt, rotation and other servos
Laser collimators and beam shapers
Stabilized power sources for gas and semiconductor lasers
Semiconductor laser drivers for optical writing
Beam wave front correction for multilayer discs (dynamical spherical aberration correction)
Layer recognizing system for multilayer discs and cards
Optical drive microprocessor control hardware and software
Decoders/ encoders of read/write information using different standards
Photo receiving optical assemblies and low-noise front-end amplifiers for optical signals about 5…30 nW, up to 40 MHz.
Front-end signal processors for WORM systems
Custom test drives for investigation of laboratory disc samples readability, write-ability, optical sensitivity, modulation capability
Custom optical measuring equipment for industrial disc production lines
Custom test equipment for industrial drive production lines
Custom manufacturing equipment for multilayer disc production line.
Laboratory breadboards for optical pickup prototyping, assembling, tuning, and testing
Laboratory breadboards for WORM media investigations
Supervision of custom components and system manufacturing
WORM media writing strategy
Project Application
Disc mastering station, laser beam recorder
VLP Video disc player, laserdisc type format
CD player
WORM drive (CD-R )
Optical card drive, LaserCard Format
Ni-stamper technological player, test equipment for nickel stampers
FMD CD drive, fluorescent multilayer disc
FMD DVD drive
FMD WORM drive
Nitrocellulose WORM discs
Holographic optical storage drives
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