Diamond diffractive optics—recent progress and perspectives

M Kiss, S Mi, G Huszka, N Quack - Advanced Optical Technologies, 2021 - degruyter.com
Diamond is an exceptional material that has recently seen a remarkable increase in interest
in academic research and engineering since high-quality substrates became commercially …

Power scaling and thermal lensing in 825 nm emitting membrane external-cavity surface-emitting lasers

HM Phung, H Kahle, JP Penttinen, P Rajala, S Ranta… - Optics Letters, 2020 - opg.optica.org
We present a membrane external-cavity surface-emitting laser (MECSEL) operating around
825 nm at room temperature. With a tuning range of 22 nm, the MECSEL fills the spectral …

Parameterized reinforcement learning for optical system optimization

H Wankerl, ML Stern, A Mahdavi… - Journal of Physics D …, 2021 - iopscience.iop.org
Engineering a physical system to feature designated characteristics states an inverse design
problem, which is often determined by several discrete and continuous parameters. If such a …

Comparison of single-side and double-side pumping of membrane external-cavity surface-emitting lasers

H Kahle, JP Penttinen, HM Phung, P Rajala… - Optics Letters, 2019 - opg.optica.org
We studied and compared single-side pumping (SSP) and double-side pumping (DSP) of a
semiconductor membrane external-cavity surface-emitting laser (MECSEL). The MECSEL …

16 W DBR‐free membrane semiconductor disk laser with dual‐SiC heatspreader

Z Yang, D Follman, AR Albrecht, P Heu… - Electronics …, 2018 - Wiley Online Library
A record output power of 16.1 W with a direct‐bonded dual‐SiC‐heatspreader distributed
Bragg reflector (DBR)‐free active region at 10.5° C coolant temperature is reported. A …

Membrane external-cavity surface-emitting laser emitting at 1640 nm

B Jeżewski, A Broda, I Sankowska, A Kuźmicz… - Optics Letters, 2020 - opg.optica.org
We fabricated and characterized a membrane external-cavity surface-emitting laser
(MECSEL) emitting at 1640 nm. This is the first, to the best of our knowledge, description of …

[HTML][HTML] Quantum dot membrane external-cavity surface-emitting laser at 1.5 μm

HM Phung, P Tatar-Mathes, C Paranthoën… - Applied Physics …, 2021 - pubs.aip.org
A membrane external-cavity surface-emitting laser (MECSEL) with an InAs/InP quantum dot
(QD) based gain region is demonstrated. The pumping scheme employs a 90 off-axis …

Growth and characterization of InP-based 1750 nm emitting membrane external-cavity surface-emitting laser

A Broda, B Jeżewski, I Sankowska, M Szymański… - Applied Physics B, 2020 - Springer
The epitaxial growth and emission properties of a membrane external-cavity surface-
emitting laser (MECSEL) are demonstrated in the 1750 nm band. A heterostructure …

DBR‐free Optically Pumped Semiconductor Disk Lasers

AR Albrecht, Z Yang… - Vertical External Cavity …, 2021 - Wiley Online Library
This chapter discusses a new alternative that does away with distributed Bragg reflector
(DBR) altogether. Departing from the traditional vertical external‐cavity surface‐emitting …

MECSELs with direct emission in the 760 nm to 810 nm spectral range: a single-and double-side pumping comparison and high-power continuous-wave operation

H Kahle, JP Penttinen, HM Phung… - Vertical External …, 2019 - spiedigitallibrary.org
We compared single-side pumping (SSP) and double-side pumping (DSP) of a
semiconductor membrane external-cavity surface-emitting laser (MECSEL). The MECSEL's …