Design and analysis of surface emitting distributed feedback laser for radio over fiber (ROF) Online publication date: Sun, 12-Oct-2008
by Gunawan Witjaksono, Irma Saraswati
International Journal of Communication Networks and Distributed Systems (IJCNDS), Vol. 1, No. 3, 2008
Abstract: This research is focused on design and analysis of semiconductor laser for ROF application. The alternative and advanced laser is designed for high performance operation and ease in manufacturing; that is a surface emitting distributed feedback (SEDFB) laser. Optimisation is performed at the wavelength of 1.55 µm using the horizontal-cavity structure. This device contains an active region by means of multi-quantum well (MQWs) structure and a separated confinement heterostructure (SCH) in order to optimise its performance. The simulation results in a ridge SEDFB structure producing a single-mode, 1550-nm output operation with optical confinement factor of 0.186, and far-field angle divergence of 450. The transverse edge loss is 0.031 cm−1. An optimum grating duty cycle is in the interval of 0.5-0.6, with a surface loss of 24cm−1. The resulting laser design has a single-lobe pattern with a differential quantum efficiency of 41.3%.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Communication Networks and Distributed Systems (IJCNDS):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook