學術出版;;Publications
Permanent URI for this communityhdl:11536/1
收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作,涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.
Browse
2 results
🏛️國立陽明交通大學機構典藏
Search Results
Item type:Item, CONTINUOUS-WAVE VISIBLE INGAP/INGAALP QUANTUM-WELL SURFACE-EMITTING LASER-DIODES(1993-07-22) ;TAI, K ;HUANG, KF ;WU, CC ;WYNN, JD電子物理學系Vertical cavity top surface emitting lasers in the 0.66 mum visible spectral region were fabricated by the metal-organic chemical vapour deposition technique. The continuous wave threshold currents I(th) are 3.9 and 4.6 mA at -75 and -25-degrees-C, respectively, for 15 mum diameter devices. The lasers can also be operated at room temperature, but only in a pulsed mode with an I(th) of 12 mA at 25-degrees-C.Item type:Item, RELIABILITY STUDIES OF 0.85 MU-M VERTICAL-CAVITY SURFACE-EMITTING LASERS - 50000-H MTTF AT 25-DEGREES-C(1993-10-28) ;WU, CC ;TAI, K ;HAUNG, KF ;電子物理學系電控工程研究所Reliability studies of gain-guieded 0.85 mum GaAs/AlGaAs quantum well surface emitting lasers were performed on 45 randomly selected lasers operated at 25, 50 or 90-degrees-C with biased currents up to 15 mA (about four times the threshold values). At 25-degrees-C, no noticeable degradation was seen after 5000 h of operation. A 14% reduction of power was seen at 50-degrees-C after 2700h. A faster degradation on power output was seen at 90-degrees-C, though the lasers are still functional after 1000h. The mean time toward failure (MTTF) of these lasers operated at 25-degrees-C and 15mA is extrapolated to be approximately 5 x 10(4)h.