Title :
Uni-traveling-carrier balanced photodiode with tunable MMI coupler for optimization of source laser RIN suppression
Author :
Klamkin, Jonathan ; Ramaswamy, Anand ; Johansson, Leif A. ; Nunoya, Nobuhiro ; Bowers, John E. ; DenBaars, Steven P. ; Coldren, Larry A.
Author_Institution :
Lincoln Lab., Massachusetts Inst. of Technol., Lexington, MA, USA
Abstract :
A balanced uni-traveling-carrier (UTC) waveguide photodiode (PD) has been fabricated and characterized. The balanced PD incorporates a multimode interference (MMI) coupler as a light combiner/splitter with tunability of the output power splitting ratio. The individual UTC-PDs demonstrate a 1 dB compression current of 80.5 mA and a third-order output intercept point of 46.1 dBm at 60 mA, both representing the highest reported for a waveguide PD. The ability to fine tune the output power splitting of the MMI coupler allows for optimization of source laser relative-intensity noise suppression.
Keywords :
microwave photonics; optical couplers; optical waveguides; optimisation; photodiodes; current 60 mA; current 80.5 mA; light combiner; light splitter; multimode interference; optimization; relative intensity noise; source laser RIN suppression; tunable MMI coupler; unitraveling-carrier balanced photodiode; Interference; Laser tuning; Optical coupling; Optical device fabrication; Optical noise; Optical waveguides; Photodiodes; Power generation; Refractive index; Tunable circuits and devices;
Conference_Titel :
Microwave Photonics, 2009. MWP '09. International Topical Meeting on
Conference_Location :
Valencia
Print_ISBN :
978-1-4244-4788-6
