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Angular Tuning of Axial Resonance in Periodic Grating Structures Design Strategy for Operating Multi-Channel CW or Mode-Locked Pulsed VECSELs
This invention can be used to develop tunable wavelength VECSEL/VCSEL/OPSL sources. This can also be used to tune absorption bands in periodic absorbers or any periodic media. This allows for engineering of tunability of a source. Furthermore, the adaptability of this invention permits the utilization of multiple wavelength ranges without needing to...
Published: 9/5/2023
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Inventor(s): Jerome Moloney, Simon Tsaoussis
Keywords(s):
Category(s): Technology Classifications > Engineering & Physical Sciences > Communications & Networking > Optical, Technology Classifications > Engineering & Physical Sciences > Communications & Networking, Technology Classifications > Imaging & Optics > Lasers & Other Sources
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Hybrid SESAM Output Coupler
A novel hybrid semiconductor saturable absorber mirror (SESAM)/dielectric output coupler has been developed and employed to demonstrate a mode locked vertical-external-cavity surface-emitting lasers (VECSEL). The hybrid SESAM enables a greatly simplified optical layout for developing short pulse laser sources utilizing semiconductor based VECSELs.
Background:...
Published: 9/5/2023
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Inventor(s): Ronald Jones, Jerome Moloney, Ricky Gibson, Sadhvikas Addamane, Garrett Cole
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Lasers & Other Sources, Technology Classifications > Engineering & Physical Sciences > Communications & Networking, Technology Classifications > Imaging & Optics > Telecommunications, Technology Classifications > Imaging & Optics > Displays
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Patterned Metallization for Hybrid Metal-Semiconductor Mirror of High Reflectivity
Researchers at the University of Arizona have designed a novel hybrid metal-semiconductor mirror for use with VECSELs. A novel method of deposition incorporating a patterned mask allows for the use of gold in conjunction with GaAs. The DBR thickness is reduced, as is the thermal impedance, resulting in high reflectivity and high gain.
Background:...
Published: 4/3/2023
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Inventor(s): Alexandre Laurain, Jerome Moloney, Patrick Gbele
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources
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Novel Design of Gain Region in Very-short Pulse VECSELS for Growth without Excessive Formation of Dislocations
This technology is a design of the gain region in a vertical-external-cavity surface-emitting laser (VECSEL) that can achieve ultra-short laser pulses depending on the placement of quantum wells on the chip, which allows for adaptation across a large range of frequencies. To prevent strain defects from appearing while still satisfying the optical gain...
Published: 4/3/2023
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Inventor(s): Isak Kilen, Stephan Koch, Jerome Moloney
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources
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Nonequilibrium High Peak and Average Power Pulsed Femtosecond Semiconductor Disk Laser
Researchers at the University of Arizona have developed a semiconductor disk laser that is engineered and fabricated to have sub wavelength spaced quantum wells to efficiently use all carriers available for lasing. The technology includes semiconductor saturable absorber mirrors (SESAMs). With the compact spaced quantum wells and absorber mirrors one...
Published: 4/3/2023
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Inventor(s): Jerome Moloney, Isak Kilen, Stephan Koch
Keywords(s):
Category(s): Technology Classifications > Imaging & Optics > Lasers & Other Sources
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