Title :
High Output Saturation and High-Linearity Uni-Traveling-Carrier Waveguide Photodiodes
Author :
Klamkin, Jonathan ; Ramaswamy, Anand ; Johansson, Leif A. ; Chou, Hsu-Feng ; Sysak, Matthew N. ; Raring, James W. ; Parthasarathy, Navin ; DenBaars, Steven P. ; Bowers, John E. ; Coldren, Larry A.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA
Abstract :
Waveguide uni-traveling-carrier photodiodes (UTC-PDs) have been fabricated and tested. Output saturation currents greater than 40 mA at 1 GHz are demonstrated for a 10 mumtimes150mum photodiode (PD). The third-order intermodulation distortion is also measured and exhibits a third-order output intercept point of 43 dBm at 20 mA and 34 dBm at 40 mA for this same PD. UTC-PDs with geometries of 5 mumtimes100 mum and 10 mumtimes100 mum are also compared and it is shown that a wider waveguide PD has improved saturation characteristics due to the lower optical power density which reduces the saturation at the front end of the device
Keywords :
intermodulation distortion; optical communication equipment; optical fibre communication; optical saturation; optical waveguides; photodetectors; photodiodes; 1 GHz; 10 mum; 100 mum; 20 mA; 40 mA; 5 mum; fiber-optic links; high output optical saturation; high-linearity photodiodes; photodetectors; third-order intermodulation distortion; unitraveling-carrier photodiodes; waveguide photodiodes; Density measurement; Distortion measurement; Geometrical optics; Intermodulation distortion; Optical devices; Optical distortion; Optical waveguides; Photodiodes; Power measurement; Testing; Fiber-optic link; linearity; photodiode (PD); saturation current; third-order intermodulation distortion (IMD3); third-order output intercept point (OIP3); uni-traveling-carrier photodiode (UTC-PD);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.890101
