A5027178736- Photonic Crystal and Fiber Optics
- Advanced Fiber Laser Technologies
- Advanced Fiber Optic Sensors
- Advanced Optical Imaging Technologies
- GaN-based semiconductor devices and materials
- Surface Roughness and Optical Measurements
- Semiconductor Lasers and Optical Devices
- Advanced Photonic Communication Systems
- ZnO doping and properties
- Semiconductor Quantum Structures and Devices
- Gaze Tracking and Assistive Technology
- Laser-Matter Interactions and Applications
- Semiconductor materials and devices
- Quantum Dots Synthesis And Properties
- Nanomaterials and Printing Technologies
- Nanofabrication and Lithography Techniques
- Advanced optical system design
- Photonic Crystals and Applications
Industrial Technology Research Institute
2022-2023
National Yang Ming Chiao Tung University
2004-2019
Abstract Micro light-emitting diode (micro-LED) will play an important role in the future generation of smart displays. They are found very attractive many applications, such as maskless lithography, biosensor, augmented reality (AR)/mixed etc, at same time. A monitor that can fulfill saturated color rendering, high display resolution, and fast response time is highly desirable, micro-LED-based technology could be our best chance to meet these requirements. At present, semiconductor-based...
We successfully fabricated nitride-based light-emitting diodes (LEDs) with ∼22° undercut sidewalls. The etching sidewalls were achieved by controllable inductively coupled plasma reactive ion etching. With a 20-mA current injection, the output powers of LED and standard 5.1 3 mW, respectively - factor 1.7 times enhancement. It was found that such could enhance probability escaping photons outside from in near horizontal in-plane directions. This simple method is beneficial to fabricate brighter LEDs.
Stable bound soliton laser mode-locking is experimentally demonstrated in an environmentally stable hybrid mode-locked Er-doped fiber without incorporating (equivalent) nonlinear saturable absorption effects. The has a sigma-type cavity and exhibits higher threshold for single to state transition. A eigenstate analysis based on the master equation model concept of steady-state lasing gain developed more physically explain observed transition phenomena.
By investigating a 10 GHz environmentally stable hybrid mode-locked Er-doped fiber soliton laser with sigma-type cavity, we experimentally and theoretically demonstrate that the relative intensity noise (RIN) of bound mode-locking can be slightly smaller than single mode-locking.
We experimentally demonstrate an environmentally stable 10 GHz FM mode-locked Er-doped fiber soliton laser that can produce bound solitons even when there is no equivalent fast saturable absorption mechanism inside the cavity.
By using a micro-ring assisted fiber laser with optical injection-locking, new possibility to generate combs tunable frequency separation is demonstrated. The results should be useful for related applications on photonic microwave generation.
Relative intensity noises (RIN) of mode-locked lasers are properties which crucial for applications. In the literature, there have been plenty theoretical/experimental studies on RIN passive/active single-pulse lasers. Since some can also be operated under bound-pulse mode-locking state, it is thus very interesting to further examine mode-locking, and verify if possibilities noise reduction as predicted by previous theoretical works. The conventional analytical formula based soliton...
Based on an all-PM figure-8 fiber loop cavity configuration with in-loop phase modulation, we demonstrate a 10 GHz dispersion-tuned wavelength-swept hybrid mode-locked Er-doped laser reasonably fast wavelength sweeping rate and excellent environmental stability.
A 40 GHz asynchronous harmonic mode-locked Er-doped fiber laser is demonstrated for the first time. Long-term stability achieved through low-frequency electronic feedback and impact of modulation depth on allowable detuning range investigated.
By studying an asynchronously mode-locked (ASM) fiber laser, we experimentally find that the laser directly transits from ASM state into FM oscillation when modulation frequency detuning is increased beyond a threshold.
By the combined usage of a sigma-type fiber cavity, 100GHz etalon filtering, and active amplitude modulation, an environmentally stable 100 GHz burst-mode Er-doped laser with excellent autocorrelation contrast is demonstrated for first time.
We contribute our recent progresses in micro LED technologies for the AR/MR applications present study. The novel eye-tracking system based on infrared and small pith full-color display with colloidal quantum-dot conversion are revealed. By combining these results, it has potential enhancing experiences usage of glasses.