Discovery Semiconductors manufactures photodetectors and balanced photoreceivers for 10 Gb, 40Gb, and 100 Gb applications.

Site Search

Follow Discovery Semiconductors on TwitterFollow Discovery Semiconductors on Twitter

Phase Noise in the Photodetection of Ultrashort Optical Pulses (2010)


Jennifer A. Taylor+*, Frank Quinlan*, Archita Hati*, Craig Nelson*, Scott A. Diddams*
+Dept. of Physics, University of Colorado Boulder, CO, USA
*Time and Frequency Division National Institute of Standards and Technology Boulder, CO, USA

Shubhashish Datta, Abhay Joshi
Discovery Semiconductors, Inc.
119 Silvia Street
Ewing, NJ 08628, USA
Tel: 609-434-1311, Fax: 609-434-1317

ABSTRACT

Femtosecond laser frequency combs provide an effective and efficient way to take an ultra-stable optical frequency reference and divide the signal down into the microwave region. In order to convert optical pulses into a usable rf signal, one must use high-speed photodetection; unfortunately, excess phase noise from both technical and fundamental sources can arise in the photodetection process. In order to ultimately minimize the noise effects of the photodetector, must first characterize some of the known sources for noise arising in these devices. In this paper, we will study two sources of excess noise in high-speed photodiodes power-to-phase conversion and shot noise. The noise performance of each device will give us clues as to the nature of the sources, their effect on the output signal, and what design features of the photodiode minimize these noise effects.

* Proc. 2010 IEEE Intl. Freq. Cont. Symp., pp. 684 - 688, Newport Beach, CA, June 1-4, 2010

Previous Back Next

Discovery Semiconductors footer line blue Home | Quality | Papers | News | About Us | Contact Us | Disclaimer | Privacy Policy | Help Viewing Our Site | Site Index
Discovery Semiconductors, Inc.® - 119 Silvia Street, Ewing, NJ 08628 USA
Tel: +1 (609) 434-1311 - Fax: +1 (609) 434-1317 Copyright ©1997-2017  All Rights Reserved