Title :
Failure analysis of travelling wave MSM distributed photodetectors
Author :
Nespola, A. ; Chau, T. ; Pirola, M. ; Wu, M.C. ; Ghione, G. ; Naldi, C.U.
Author_Institution :
Dipt. di Elettronica, Politecnico di Torino, Italy
Abstract :
High-power, velocity-matched distributed photodetectors (VMDP) operating at 1.3 and 1.55 /spl mu/m are viable candidates for optical microwave links and optical heterodyne detection due to their wide modulation bandwidth, high efficiency and high peak saturation photocurrent. The aim of the paper is to investigate the failure mechanism of VMDPs through a physics-based, steady-state quasi-3D coupled electro-thermal model including the combined effect of device heating and avalanche breakdown.
Keywords :
heterodyne detection; metal-semiconductor-metal structures; microwave photonics; optical fibre communication; optical receivers; photodetectors; photodiodes; 1.3 micrometre; 1.55 micrometre; avalanche breakdown; device heating; efficiency; failure mechanism; modulation bandwidth; optical heterodyne detection; optical microwave links; peak saturation photocurrent; steady-state quasi-3D coupled electro-thermal model; travelling wave MSM distributed photodetectors; velocity-matched distributed photodetectors; Bandwidth; Electromagnetic heating; Failure analysis; Microwave devices; Optical detectors; Optical mixing; Optical modulation; Optical saturation; Photoconductivity; Photodetectors;
Conference_Titel :
Electron Devices Meeting, 1998. IEDM '98. Technical Digest., International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-4774-9
DOI :
10.1109/IEDM.1998.746445
