Abstract
The amplitude-to-phase (AM-to-PM) conversion in photodetectors is one the primary noise sources in the generation of ultralow noise microwave signals with stabilized optical frequency combs. We have designed charge-compensated modified unitraveling carrier (CC-MUTC) photodiodes to reduce the AM-to-PM conversion. The photocurrent-induced phase change at 15 GHz is reduced by >3 times and the AM-to-PM is greatly suppressed, especially at large photocurrent. For 10-μm devices, the 3-dB bandwidth at −6 V is 35 GHz and the maximum RF output power is 13.7 dBm at 15 GHz. Compared with the original CC-MUTC structure, the maximum output power is increased by 2.7 dB.
© 2018 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription