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Physical Sciences and Mathematics Commons™
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- Beam quality (1)
- Catastrophic optical mirror damage (COMD) (1)
- Compact microring laser array (1)
- Continuous-wave operation (1)
- Costs (1)
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- Diverging lens (1)
- Dual-wavelength generation (1)
- Epitaxial growth (1)
- Gaussian beam (1)
- High-brightness lasers (1)
- High-power lasers (1)
- Indium phosphide (1)
- Integrated lens (1)
- Mode expansion (1)
- Optical coupling (1)
- Optical device fabrication (1)
- Optical resonators (1)
- Optical waveguides (1)
- Resonator filters (1)
- Ring lasers (1)
- Tapered lasers (1)
- Tunable laser array (1)
- Vertical-coupling architecture (1)
- Vertically-coupled microring laser array (1)
- Waveguide lasers (1)
- Wavelength 4.9 nm to 6.3 nm (1)
- Wavelength separation tunability (1)
Articles 1 - 5 of 5
Full-Text Articles in Physical Sciences and Mathematics
Vertically Coupled Microring Laser Devices Based On Inp Using Bcb Wafer Bonding, M. Hamacher, H. Heidrich, U. Troppenz, D. Syvridis, D. Alexandropoulos, S. Mikroulis, A. Kapsalis, Chyng Wen Tee, K. A. Williams, V. Dragoi, M. Alexe, D. Cristea, M. Kusko
Vertically Coupled Microring Laser Devices Based On Inp Using Bcb Wafer Bonding, M. Hamacher, H. Heidrich, U. Troppenz, D. Syvridis, D. Alexandropoulos, S. Mikroulis, A. Kapsalis, Chyng Wen Tee, K. A. Williams, V. Dragoi, M. Alexe, D. Cristea, M. Kusko
Research Collection Lee Kong Chian School Of Business
In this paper, we present our approach on the realization of vertical coupling technology that has been verified for microlaser fabrication as well as for the realization of high Q resonators with 'loss-less' cavities based on InP. The concept is based on full wafer technology and provides the integration of an optical transparent passive bus waveguide vertically coupled to the active ring laser.
Vertically-Coupled Microring Laser Array For Dual-Wavelength Generation, Chyng Wen Tee, K. A. Williams, R. V. Penty, I. H. White, M. Hamacher, U. Troppenz, H. Heidrich
Vertically-Coupled Microring Laser Array For Dual-Wavelength Generation, Chyng Wen Tee, K. A. Williams, R. V. Penty, I. H. White, M. Hamacher, U. Troppenz, H. Heidrich
Research Collection Lee Kong Chian School Of Business
We report the first demonstration of continuous-wave operation of a tunable, compact microring laser array based on a vertical-coupling architecture, well suited to larger-scale integration. Wavelength separation tunability from 4.9 to 6.3nm is observed.
Integrated 10th Order Fresnel Lens Design For Beam Quality Enhancement In Tapered Laser Diode, F. K. Lau, Chyng Wen Tee, C. H. Kwok, R. V. Penty, I. H. White, N. Michel, M. Krakowski
Integrated 10th Order Fresnel Lens Design For Beam Quality Enhancement In Tapered Laser Diode, F. K. Lau, Chyng Wen Tee, C. H. Kwok, R. V. Penty, I. H. White, N. Michel, M. Krakowski
Research Collection Lee Kong Chian School Of Business
An integrated 10th order Fresnel lens capable of improving the laser beam quality is reported. The far-field divergence is narrowed by an average of 1.9 deg (29%) and an overall M2- factor improvement of 15% is recorded.
Compact Vertically-Coupled Microring Laser Array Dual-Wavelength Source For Terahertz Mode Beating, Chyng Wen Tee, K. A. Williams, R. V. Penty, I. H. White
Compact Vertically-Coupled Microring Laser Array Dual-Wavelength Source For Terahertz Mode Beating, Chyng Wen Tee, K. A. Williams, R. V. Penty, I. H. White
Research Collection Lee Kong Chian School Of Business
Continuous-wave operation of a fully tunable compact microring twin-laser array is demonstrated for the first time. The two active microrings, with radii of 70μm and 74μm, are vertically- coupled to a single passive waveguide. Tuning of the current facilitates a wavelength separation from 4.9nm to 6.3nm.
A Novel Intra-Cavity Lens Design For Compact High Efficiency Tapered Laser Diodes, F. K. Lau, Chyng Wen Tee, R. V. Penty, I. H. White, N. Michel, M. Krakowski
A Novel Intra-Cavity Lens Design For Compact High Efficiency Tapered Laser Diodes, F. K. Lau, Chyng Wen Tee, R. V. Penty, I. H. White, N. Michel, M. Krakowski
Research Collection Lee Kong Chian School Of Business
An integrated parabolic lens capable of introducing a diverging effect to the optical mode propagating within the cavity of a tapered laser is proposed and demonstrated. This idea allows broader high-power beams to be generated by shorter cavities. Diverging lenses with etch depths of 0.13 and 0.27 mum are implemented, with 12 (9.5%) and 16.8 mum (13.3%) overall broadening of the near-fields widths measured at 1/e2 intensity. The peak output power as well as the threshold current is found to increase following the lens etching process, confirming the beneficial broadening effect introduced by the diverging lens.