By Topic

Theoretical analysis of ASK heterodyne optical receivers with tuned front ends

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Garrett, I. ; British Telecom, Research Laboratories, Ipswich, UK ; Jacobsen, G.

Heterodyne optical receivers designed with high intermediate frequency or with large IF bandwidth suffer from frequency-squared noise spectral density components if a base-band receiver design is used. This noise component can be reduced usefully if the front-end is tuned to the IF. We present detailed calculations of noise spectral densities for an ASK receiver using square-law IF detection. An example of a 140 Mbit/s receiver with an IF filter suitable for lasers with significant phase noise is considered. The tuned receiver may be up to 6 dB more sensitive than the base band design for the range of receiver parameters considered.

Published in:

Optoelectronics, IEE Proceedings J  (Volume:135 ,  Issue: 3 )