Buried heterostructure
WebApr 21, 2015 · Combination of AlGaInAs quantum wells with large differential gain and semi-insulating buried-heterostructure for reduction of the volume in active region achieved high-speed direct modulation. The fabricated lasers in the array lase with different wavelengths with stable single-longitudinal mode. Clear eye-opening and large mask … WebAug 21, 2024 · Direct visualization of nanometer-scale properties of moiré superlattices in van der Waals heterostructure devices is a critically needed diagnostic tool for study of the electronic and optical ...
Buried heterostructure
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WebJun 4, 1998 · Results of a study of the electrical derivative characteristics of InGaAsP buried heterostructure lasers are presented. By considering current‐leakage paths and … WebBuried heterostructure ~BH! multi-quantum-well~MQW! lasers1–5 provide tight confinement of charge carriers and photons within the device active region as defined …
WebTogether with the optimal basic design, buried heterostructure quantum cascade laser (BH-QCL) with semi-insulating regrowth offers a unique possibility to achieve an effective thermal dissipation and lateral single … WebApr 6, 2005 · An in-situ cleaned and regrown 1.3-/spl mu/m InGaAIAs buried heterostructure laser was fabricated for the first time. The degradation of its driving current was about 1% after a 2000-hour aging ...
WebApr 21, 2015 · Combination of AlGaInAs quantum wells with large differential gain and semi-insulating buried-heterostructure for reduction of the volume in active region achieved … WebInGaAsP/InP buried heterostructure (BH) lasers with semi-insulating InP current blocking layers have been extensively studied as ultra-high speed light sources because of their small parasitic capacitance. So far they have been demonstrated using vapor phase epitaxy (VPE) [1-5] and metalorganic chemical vapor deposition (MOCVD) epitaxy [6,7].
WebWe report scanning voltage microscopy (SVM) results on actively driven buried heterostructure (BH) multiquantum-well (MQW) lasers that exhibit current blocking failure at high current injection operation. The measured two-dimensional image of local voltage distribution delineates the buried structures of the BH laser. The results, in combination …
WebBuried-tunnel-junction VCSELs with single-mode emission have shown high performance [4]. However, the single-mode emission area is small (7 or 8 µm in diameter), and the … kiribati in world mapWebThe buried heterostructure is formed by regrowth of InP lateral on the side walls and on top of the InAlAs/InGaAs laser structure by molecular beam epitaxy (MBE) after in situ … kiribati is in which continentWebMeaning of heterostructure. What does heterostructure mean? Information and translations of heterostructure in the most comprehensive dictionary definitions … kiribati land transport authorityWebSep 1, 2013 · The resulting buried-heterostructure lasers are compared to a reference laser from the same wafer, but with SiO 2 insulation; all three have very similar threshold … kiribati island peopleWebWe report scanning voltage microscopy (SVM) results on actively driven buried heterostructure (BH) multiquantum-well (MQW) lasers that exhibit current blocking … lyricshow下载WebA buried heterostructure laser diode and method for making the same wherein an active layer is provided in a semiconductor region forming a mesa stripe, and, except for the top surface portion of the mesa stripe, the side surface portion of the mesa stripe and the remainder are covered by a current-blocking layer. Furthermore, a current-confining layer … kiribati national condition of serviceWebAug 1, 2010 · Here, we show high-speed direct modulation (3-dB modulation bandwidth of 5.5 GHz) of an ultracompact InP/InGaAsP buried heterostructure photonic-crystal laser at room temperature by optical pumping. kiribati island sinking into the sea