@article{(Open Science Index):https://publications.waset.org/pdf/10008357,
	  title     = {Improved Small-Signal Characteristics of Infrared 850 nm Top-Emitting Vertical-Cavity Lasers},
	  author    = {Ahmad Al-Omari and  Osama Khreis and  Ahmad M. K. Dagamseh and  Abdullah Ababneh and  Kevin Lear},
	  country	= {},
	  institution	= {},
	  abstract     = {High-speed infrared vertical-cavity surface-emitting laser diodes (VCSELs) with Cu-plated heat sinks were fabricated and tested. VCSELs with 10 mm aperture diameter and 4 mm of electroplated copper demonstrated a -3dB modulation bandwidth (f-3dB) of 14 GHz and a resonance frequency (fR) of 9.5 GHz at a bias current density (Jbias) of only 4.3 kA/cm2, which corresponds to an improved f-3dB2/Jbias ratio of 44 GHz2/kA/cm2. At higher and lower bias current densities, the f-3dB2/ Jbias ratio decreased to about 30 GHz2/kA/cm2 and 18 GHz2/kA/cm2, respectively. Examination of the analogue modulation response demonstrated that the presented VCSELs displayed a steady f-3dB/ fR ratio of 1.41±10% over the whole range of the bias current (1.3Ith to 6.2Ith). The devices also demonstrated a maximum modulation bandwidth (f-3dB max) of more than 16 GHz at a bias current less than the industrial bias current standard for reliability by 25%.},
	    journal   = {International Journal of Electronics and Communication Engineering},
	  volume    = {11},
	  number    = {12},
	  year      = {2017},
	  pages     = {1223 - 1226},
	  ee        = {https://publications.waset.org/pdf/10008357},
	  url   	= {https://publications.waset.org/vol/132},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 132, 2017},
	}