نتایج جستجو برای: dbr

تعداد نتایج: 675  

Journal: :IEEE Journal of Selected Topics in Quantum Electronics 2005

2018

Attempts to commercialize GaN VCSELs have been unsuccessful to date due to the challenges of manufacturability of DBR mirrors, difficulties associated with current blocking, and the complexity of laser liftoff. The new process flow overcomes all three challenges enabling the manufacturing of IIINitride VCSEL without liftoff and with much reduced complexity and the possibility of on-wafer testing.

2018

Attempts to commercialize GaN VCSELs have been unsuccessful to date due to the challenges of manufacturability of DBR mirrors, difficulties associated with current blocking, and the complexity of laser liftoff. The new process flow overcomes all three challenges enabling the manufacturing of IIINitride VCSEL without liftoff and with much reduced complexity and the possibility of on-wafer testing.

2011
André Müller Deepak Vijayakumar Ole Bjarlin Jensen Karl-Heinz Hasler Bernd Sumpf Götz Erbert Peter E. Andersen Paul Michael Petersen

Based on spectral beam combining we obtain 16 W of output power, combining two 1063 nm DBR-tapered diode lasers. The spectral separation within the combined beam can be used for subsequent sum-frequency generation. OCIS codes: (140.2020) Diode lasers; (140.3298) Laser beam combining; (190.2620) Harmonic generation and mixing

2018

Attempts to commercialize GaN VCSELs have been unsuccessful to date due to the challenges of manufacturability of DBR mirrors, difficulties associated with current blocking, and the complexity of laser liftoff. The new process flow overcomes all three challenges enabling the manufacturing of IIINitride VCSEL without liftoff and with much reduced complexity and the possibility of on-wafer testing.

2018

Attempts to commercialize GaN VCSELs have been unsuccessful to date due to the challenges of manufacturability of DBR mirrors, difficulties associated with current blocking, and the complexity of laser liftoff. The new process flow overcomes all three challenges enabling the manufacturing of IIINitride VCSEL without liftoff and with much reduced complexity and the possibility of on-wafer testing.

Journal: :Journal of Technology and Science Education 2021

STEAM learning was design to promote student’s interest in chemistry. Integration into chemistry is often seen as a challenge, such not familiar and lack of knowledge on Coping, for this reason, web-based online platform designed. This paper reports the use design-based research (DBR) develop platform. The focuses two studies that step development validation In an attempt implement theoreticall...

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