Technologies available for licensing, investment, joint ventures and R&D contracts in Ukraine, Azerbaijan, Georgia, Moldova, Uzbekistan

Frontpage Slideshow (version 2.0.0) - Copyright © 2006-2008 by JoomlaWorks

Google Translate

Patenting Information

Tag Cloud



Free counters!

Home Moldova Technologies Selective Photodiode with Modulated Sensitivity

Selective Photodiode with Modulated Sensitivity

Description

The selective photodiode is made on the basis of InxGa1-xAsyP1-y multilayer heterostructure can be used for speeding up the information transmission for atmosphere and fiber telecommunication systems and for detecting simultaneously two or more optic signals with different wavelengths. The output signal amplitude is modulated at the 100 % by the inverse supply voltage of p-n junctions. The selective photodiode simultaneously receive two optic signals with different wavelengths and the photosensitivity for the both signals can be modulated by the supply voltage.

Innovative Aspect and Main Advantages

  • Speed up the information transmission for atmosphere and fiber telecommunications system
  • Photosensibility modulation up to 100% by the applied voltage
  • Detecting simultaneously two or more optic signals with different wavelengths
  • Exclusion of optic background influence and detection of signals with certain wavelengths only

Areas of Application

Atmosphere and fiber optic telecommunications systems

Structure of selective photodiodes series.
Fig. 1 Structure of selective photodiodes series.


Fig. 2 Current-voltage characteristic of selective
photodiode.

Stage of Development

The prototype of the selective photodiode was tested in the Laboratory of Micro-Optoelectronics, Technical University of Moldova.

Covered by the patent of R. Moldova MD 886 G2

Contact Details

Technical University of Moldova
Valerian DOROGAN, vice-rector, Sergiu ZAPOROJAN, department of scientific investigations
Address: 168, Stefan cel Mare St. Chisinau, MD-2004, Republic of Moldova
Tel/Fax: (+373 22) 235 437; 235 405
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Add comment


Security code
Refresh