Photonic microwave generation with high-power photodiodes.
We utilized and characterized high-power, high-linearity modified unitraveling carrier (MUTC) photodiodes for low-phase-noise photonic microwave generation based on optical frequency division (OFD). When illuminated with picosecond pulses from a repetition-rate-multiplied gigahertz Ti:sapphire modelocked laser, the photodiodes can achieve a 10 GHz signal power of +14 dBm. Using these diodes, we generated a 10 GHz microwave tone with less than 500 attoseconds absolute integrated timing jitter (1 Hz-10 MHz) and a phase noise floor of -177 dBc/Hz.We also characterized the electrical response, amplitude-to-phase conversion, saturation, and residual noise of the MUTC photodiodes.
National Institute of Standards and Technology, Time and Frequency Division, Boulder, Colorado 80305, USA.
Tara M
TM
Fortier
Franklyn
F
Quinlan
Archita
A
Hati
Craig
C
Nelson
Jennifer A
JA
Taylor
Yang
Y
Fu
Joe
J
Campbell
Scott A
SA
Diddams