Eliminates Absorption in Telecommunication Waves Photon Laser Pointer
The laser pointer provides high gain with such a small size. New opportunities can be created in low-cost broadband spectrometers, precision manufacturing, and hyperspectral imaging. The efficiency of the device can also be revealed by cascaded four-wave mixing—a high-order mixing between amplified photons and converted photons. This phenomenon also enables the amplifier to be used as a tunable broadband light source, which can obtain cheaper and more effective spectral sensing and molecular fingerprints than existing methods. The low efficiency of highly nonlinear photonic devices is overcome here by photonic device engineering. It maximizes the nonlinearity of the device while maintaining a sufficiently large bandgap. To eliminate the two-photon absorption of the laser pointer at the telecom wavelength.
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We believe this is so far that the laser pointer is on the telecom wavelength. The professor said the highest gain. It is possible to achieve ultra-high gain amplification while maintaining high compactness because researchers have successfully designed and implemented an amplifier with both high nonlinearity and high photon efficiency. In other platforms compatible with today's electronic industry processes, either the nonlinear coefficient is low, or the photon efficiency is low. This result proves that the ultra-silicon-rich nitride platform is very promising in high-efficiency nonlinear optical applications. Especially in the field of laser pointer photonics using the existing electronic infrastructure. Said a senior scientist at the Data Storage Institute.
2020-08-03 12:15:08
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