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The vertical-cavity surface emitting lasers with optical semiconductor and optical extender technology and products
183 2022. 8. 9.
Summary
The Korean company harnesses compound semiconductors to produce VCSELs (Vertical-Cavity Surface-Emitting Lasers) that convert electrical signals into optical signals and PD (Photo Diodes) that convert optical signals into electrical signals.
Compared to traditional technologies, it enables parallel signal processing, high-density integration, low power consumption, simple manufacturing process, and good heat resistance.
This technology is being used in digital, automobile, information and communication, medical and bio fields.
Advantages and Innovations
VCSEL / PIN PD
Unlike side-emitting laser (LD), VCSEL emits a circular laser beam vertically from the substrate surface, so it is easy to connect with a light-receiving device or optical fiber. It features low power consumption, simple manufacturing process, and heat resistance.
PD (Photo Diode) is a compound semiconductor device that converts optical signals into electrical signals, unlike VCSELs. PDs based on compound semiconductors have the ability to receive light with high-speed communication detection devices and high-sensitivity sensors due to the unique characteristics that silicon does not have.
RCLED
RCLED (Resonant-Cavity Light-Emitting Diode) is a resonant light emitting diode using a compound semiconductor.
Compared with semiconductor lasers, LEDs features good output linearity, low noise, long lifespan, high reliability, and low price, but have disadvantages of small output, slow response, and poor coupling efficiency. On the other hand, RCLED, which compensates for the shortcomings of semiconductor lasers and light emitting diodes, is in the spotlight thanks to surface emission type, excellent bonding efficiency, fast response speed, excellent temperature characteristics, and long lifespan.
Stage of Development
Description
VCSEL for Optical Sensor
High Power VCSELs
- High Efficiency at 50C
- Narrow beam divergence FWHM~15
- Operating temperature 0~60C
- Class 3B laser- Eye safety
PIN PD for Optical Communication
GaAs PD
- Up to 14Gbps bandwidth (25G is under development)
- Operating temperature -40~85C
- AR coated for 850nm
- Low dark current and low capacitance
- Two top-side Wire bond pads
RCLED for Optical communication
650nm RCLED
- No threshold
- 120 deg beam angle
- Customized emitter size available
- POF application
- RED dot sight
VCSEL and/or PIN PD is applied to laser printer, laser mouse, DVI, HDMI, high-speed PCB, and home network in the digital media sector. Also it is utilized to Gigabit Ethernet, SAN, SONET, VSR, etc. As a sensor, it is applied to an encoder, gas sensor, etc. In the medical and bio sector, it is applied to a blood glucose meter, a laser for skin care, etc.
RCLED is applied to control sensors in automobiles, audio systems, automatic navigation systems, military vehicles, fighters, aircraft, and ships.
Technology Keywords
Market Application Keywords
Sector Group
Type and Size of Client
Type and Role of Partner Sought
Hope to export technology or export products
Type of Partnership Considered
Financial agreement
Joint venture agreement
Manufacturing agreement
Company
Internal Reference
Category
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