Title :
High power UTC photodiodes design and application for analog fiber optic links
Author :
Chtioui, M. ; Enard, A. ; Carpentier, D. ; Lelarge, F. ; Rousseau, B. ; Achouche, M. ; Marceaux, A. ; Renoult, A. ; Feuillet, C. ; Queguiner, M. ; Merlet, T.
Author_Institution :
III-V Lab., Alcatel-Thales III-V Lab., Marcoussis, France
Abstract :
We report on the design and characterization of uni-traveling-carrier photodiodes (UTC-PDs) achieving simultaneously high speed (ges 20 GHz), high responsivity (0.83 A/W), and high saturation current (ges 80 mA). These performances yield attractiveness of the designed PDs for use in analog fiber optic links. Indeed, high power operation enhances both the RF link gain and dynamic range. This was experimentally confirmed by demonstrating a L-band direct modulation analog fiber optic link using the developed UTC-PDs. The demonstrated link exhibits an intrinsic gain close to -1 dB, and a compression to noise ratio as high as 162 dB.Hz at 10 mA of detected photocurrent.
Keywords :
microwave photonics; optical communication equipment; optical links; optical modulation; photoconductivity; photodiodes; L-band direct modulation; RF link gain; analog fiber optic link; compression-to-noise ratio; current 10 mA; current 80 mA; frequency 20 GHz; high power UTC photodiodes; photocurrent; responsivity; uni-traveling-carrier photodiodes; Dynamic range; L-band; Optical design; Optical fibers; Optical modulation; Optical noise; Photoconductivity; Photodiodes; Radio frequency; Signal to noise ratio;
Conference_Titel :
Microwave Photonics, 2009. MWP '09. International Topical Meeting on
Conference_Location :
Valencia
Print_ISBN :
978-1-4244-4788-6
