PAM-6 generation using 32-QAM constellation

L. Chorchos

doi:10.1117/12.2509732

1 February 2019 PAM-6 generation using 32-QAM constellation

L. Chorchos

Proceedings Volume 10946, Metro and Data Center Optical Networks and Short-Reach Links II; 109460N (2019) https://doi.org/10.1117/12.2509732
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

In this paper an intermediate solution to pulse amplitude modulation with 4 levels (PAM-4) and PAM-8, namely PAM-6 is presented. The generation of the signal is based on a constellation from 32-quadrature amplitude modulation (32-QAM) and assumes the I and Q components to be interleaved, which allows its application in intensity modulation/direct detection systems. The PAM-6 modulation shows higher resistance to noise than PAM-8 and increased by 25% the bitrate for constant bandwidth when compared to PAM-4. In the paper, experimental results and a comparison of PAM-6 modulation to PAM-4 and PAM-8 is made for an electrical interface, a directly modulated 850nm VCSEL and an externally modulated 1310nm DFB laser.

Conference Presentation

Citation Download Citation

L. Chorchos "PAM-6 generation using 32-QAM constellation", Proc. SPIE 10946, Metro and Data Center Optical Networks and Short-Reach Links II, 109460N (1 February 2019); https://doi.org/10.1117/12.2509732

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available