Title :
Photodiode linearity requirements for radio-frequency photonics and demonstration of increased performance using photodiode arrays
Author :
Urick, Vincent J. ; Hastings, Alexander S. ; McKinney, Jason D. ; Devgan, Preetpaul S. ; Williams, Keith J. ; Sunderman, Christopher ; Diehl, John F. ; Colladay, AndKristina
Author_Institution :
U.S. Naval Res. Lab., Washington, DC
fDate :
Sept. 9 2008-Oct. 3 2008
Abstract :
The impact that photodiode nonlinearities have on intensity-modulation direct-detection analog photonic links is described. The second- and third-order linearity requirements for photodiodes, quantified in terms of output intercept points, are calculated. Measured data at 1 GHz for a high-current (60-mA) partially-depleted-absorber photodiode are presented. A four-photodiode 26-mA array at 5 MHz is demonstrated to achieve modulation-limited third-order performance and a second-harmonic output intercept point of 84 dBm.
Keywords :
light absorption; microwave photonics; optical links; optical modulation; photodiodes; radio links; current 26 mA; current 60 mA; frequency 1 GHz; frequency 5 MHz; high-current partially-depleted-absorber photodiode; intensity-modulation direct-detection analog photonic links; microwave photonics; modulation-limited third-order performance; photodiode arrays; photodiode linearity; radio-frequency photonics; second-harmonic output intercept point; Bandwidth; Demodulation; Dynamic range; Laboratories; Linearity; Microwave photonics; Noise figure; Photoconductivity; Photodiodes; Radio frequency; Analog photonics; microwave photonics; nonlinearity; photodiodes;
Conference_Titel :
Microwave photonics, 2008. jointly held with the 2008 asia-pacific microwave photonics conference. mwp/apmp 2008. international topical meeting on
Conference_Location :
Gold Coast, Qld
Print_ISBN :
978-1-4244-2168-8
Electronic_ISBN :
978-1-4244-2169-5
DOI :
10.1109/MWP.2008.4666641
