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Base Width Variations and its Effects on Frequency Response of Double Hetero-structure Long Wavelength Transistor Laser
Author(s) -
Mohammad Reza Farjadian,
Hassan Kaatuzian,
Iman Taghavi
Publication year - 2013
Publication title -
optics and photonics journal
Language(s) - English
Resource type - Journals
eISSN - 2160-889X
pISSN - 2160-8881
DOI - 10.4236/opj.2013.32b058
Subject(s) - base (topology) , wavelength , materials science , transistor , laser , optics , optoelectronics , full width at half maximum , physics , mathematics , mathematical analysis , quantum mechanics , voltage

In this paper we investigate the effects of base width variation on performance of long wavelength transistor laser. In our structure with increasing the base width, the cut off frequency increases until 367 nm with 24.5 GHz and then abruptly fall. In 100 nm base width, we have 17.5 GHz cut off frequency, and overall ac performances become optimized, although, other parameters like optical losses and threshold current density are not optimized.

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