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- W2044728565 abstract "We have fabricated proton-implanted photonic crystal (PhC) vertical-cavity surface-emitting lasers (VCSELs) emitting in the visible spectrum. The active region of the VCSELs is composed of multiple InGaAlP quantum wells resulting in an emission wavelength of 674 nm. A threshold current of 1.3 mA and single mode output power higher than 1 mW at room temperature have been achieved. The maximum continuous wave (CW) lasing temperature was found to be 55° C. The PhC VCSELs operate in a single fundamental mode with a side-mode suppression ratio (SMSR) larger than 30 dB and show a constant beam divergence of 8 degree (full angle) for all levels of injection current and various ambient temperatures. We compare ion-implanted and photonic crystal VCSELs and demonstrate that the controllable refractive index guidance effect of the PhC results in a stable beam output which makes these red VCSELs interesting for imaging applications." @default.
- W2044728565 created "2016-06-24" @default.
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- W2044728565 date "2010-02-11" @default.
- W2044728565 modified "2023-09-23" @default.
- W2044728565 title "Proton-implanted red photonic crystal VCSELs with high quality output beam" @default.
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- W2044728565 doi "https://doi.org/10.1117/12.847340" @default.
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