Super-linear modulator with extended bandwidth capability for broadband access applications

Andru Prescod; Benjamin B. Dingel; Nicholas Madamopoulos

doi:10.1117/12.808230

26 January 2009 Super-linear modulator with extended bandwidth capability for broadband access applications

Andru Prescod, Benjamin B. Dingel, Nicholas Madamopoulos

Proceedings Volume 7234, Broadband Access Communication Technologies III; 72340E (2009) https://doi.org/10.1117/12.808230
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

Ultra-linear modulators are critical components for broadband access applications in analog fiber-optic communication links, such as Radio-over-Fiber (RoF), Radio-over-Free Space (RoFS) and ultra-dense (cable television) CATV. In our previous work, it was shown that an ultra-linear optical modulator - composed of a phase modulator and ring resonator in a Mach-Zehnder (MZ) configuration, exhibited SFDR values > 130 dB. In this paper, we introduce a new configuration based on a lumped electrode design, in which the phase modulator (PM) is on one arm of the MZ and the ring resonator (RR) is located on the other arm. We also carefully control and monitor the power split ratio of an RF input to both the PM and the RR, in addition to the RF phase bias between the RR and PM. We report its unique and superior features such as superior linearity (SFDR ~ 133 dB), modulation bandwidth extension (as much as 70%) over the ring resonator-assisted Mach Zehnder design and high link gain. Lastly, we discuss the merits of the design flexibility, practicality and ease of use of the new modulator.

Citation Download Citation

Andru Prescod, Benjamin B. Dingel, and Nicholas Madamopoulos "Super-linear modulator with extended bandwidth capability for broadband access applications", Proc. SPIE 7234, Broadband Access Communication Technologies III, 72340E (26 January 2009); https://doi.org/10.1117/12.808230

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