Tong Chen is a prominent inventor based in Pasadena, California. He has made significant contributions to the field of laser technology, holding a total of 5 patents. His work focuses on developing advanced laser systems that enhance coherence and efficiency.

Latest Patents

One of Tong Chen's latest patents is a chip-based laser resonator device for highly coherent laser generation. This innovative system incorporates a disk resonator with a wedge structure made from a silicon dioxide layer of a chip. It is capable of generating a highly-coherent laser from a low-coherence optical pump input at an optical power level as low as 60 µW. The disk resonator features sub-micron cavity size control, enabling the generation of a highly-coherent laser through a controllable Stimulated Brillouin Scattering process. This process matches the cavity free-spectral-range to a Brillouin shift frequency in silica. The resulting highly-coherent laser can achieve a Schawlow-Townes noise level as low as 0.06 Hz/Hz, measured at a power level of about 400 µW, with technical noise at least 30 dB lower than the low-coherence optical pump input.

Another notable patent is a chip-based frequency comb generator with a microwave repetition rate. This generator eliminates the disadvantages of a reflow process and includes an ultra-high Q disk resonator with a waveguide as part of a wedge structure fabricated from a silicon dioxide layer of the chip. The disk resonator allows for the generation of a frequency comb with mode spacing as low as 2.6 GHz and up to 220 GHz. Its surface-loss-limited behavior decouples the strong dependence of pumping threshold on repetition rate.

Career Highlights

Tong Chen is affiliated with the California Institute of Technology, where he continues to push the boundaries of laser technology. His innovative work has garnered attention in the scientific community and has implications for various applications in optics and photonics.

Collaborations

Tong Chen collaborates with esteemed colleagues such as Hansuek Lee and Kerry J. Vahala. Their combined expertise contributes to the advancement of research in laser technologies.

Conclusion

Tong Chen's contributions to laser technology through his innovative patents highlight his role as a leading inventor in the field. His work not only advances scientific understanding but also paves the

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