Title :
Assessment of PbSe Photoconductors for the Realization of Free-Space Midinfrared Optical Communication Links
Author :
Rivera, Carlos ; Álvarez, Mario
Author_Institution :
Ing. y Servicios Aeroesp., S.A., Madrid, Spain
Abstract :
PbSe-photoconductor technology has been revisited to ascertain its feasibility for the realization of free-space midinfrared optical links operating at room temperature. Results show that receivers based on current PbSe devices can perform up to 3 Mb/s with a bit-error-rate-limited sensitivity at 10-9 better than 50 μW. Calculations indicate that the temporal response depends on the density of sensitizing centers, leading to an improvement in the gain-bandwidth product for high mobility material if designed properly.
Keywords :
optical links; photoconducting materials; PbSe; free space midinfrared optical communication links; high mobility material; photoconductor technology; photoconductors; temperature 293 K to 298 K; Charge carrier processes; Optical amplifiers; Optical pulses; Optical sensors; Photoconductivity; Photodetectors; Quantum cascade lasers; Lead compounds; optical communication equipment; photodetectors; semiconductor device modeling;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2177494
