8-Channel microdisk CW laser arrays vertically coupled to common output bus waveguides

Author(s):  
Seung June Choi ◽  
Zhen Peng ◽  
Qi Yang ◽  
Sang Jun Choi ◽  
P. Daniel Dapkus
Keyword(s):  

2004 ◽  
Vol 16 (2) ◽  
pp. 356-358 ◽  
Author(s):  
S.J. Choi ◽  
Z. Peng ◽  
Q. Yang ◽  
S.J. Choi ◽  
P.D. Dapkus
Keyword(s):  




1981 ◽  
Vol 4 ◽  
Author(s):  
T. J. Stultz ◽  
J. F. Gibbons

ABSTRACTStructural and electrical characterization of laser recrystallized LPCVD silicon films on amorphous substrates using a shaped cw laser beam have been performed. In comparing the results to data obtained using a circular beam, it was found that a significant increase in grain size can be achieved and that the surface morphology of the shaped beam recrystallized material was much smoother. It was also found that whereas circular beam recrystallized material has a random grain structure, shaped beam material is highly oriented with a <100> texture. Finally the electrical characteristics of the recrystallized film were very good when measured in directions parallel to the grain boundaries.



Author(s):  
L.S. Koh ◽  
H. Marks ◽  
L.K. Ross ◽  
C.M. Chua ◽  
J.C.H. Phang

Abstract A Laser Timing Probe (LTP) system which uses a noninvasive 1.3 µm continuous wave (CW) laser with frequency mapping and single point measurement capabilities is described. The frequency mapping modes facilitate the localization of signal maxima for subsequent single point measurements. Measurements of waveforms with long delays and 50 ps response time from NMOS and PMOS transistors are also shown.







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