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Proceedings Paper

Analysis of the spectrum characteristics of a super linear optical modulator
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Paper Abstract

We demonstrate the superior RF spectrum characteristics of an ultra-linear modulator. This modulator exhibits excellent linearity (Spurious Free Dynamic Range, SFDR ~ 133 dB at 1Hz bandwidth), wider linearization bandwidth (an order of magnitude wider), and flatter RF modulation frequency dependence characteristics (linearized 3dB bandwidth ~ 20% of central RF frequency) when compared with Resonator- Assisted Mach Zehnder (RAMZ) modulators. The modulator is based on a traveling-wave electrode design, in which a phase modulator (PM) is on the upper arm of a Mach Zehnder (MZ) interferometer and a ring resonator (RR) is located on the lower arm. This modulator design is also shown to have flexible control of 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 - which enables better manufacturing tolerance.

Paper Details

Date Published: 22 January 2010
PDF: 8 pages
Proc. SPIE 7620, Broadband Access Communication Technologies IV, 762008 (22 January 2010); doi: 10.1117/12.846424
Show Author Affiliations
Andru J. Prescod, The City College of The City Univ. of New York (United States)
Corning Inc. (United States)
Benjamin B. Dingel, Nasfine Photonics Inc. (United States)
Nicholas Madamopoulos, Corning Inc. (United States)

Published in SPIE Proceedings Vol. 7620:
Broadband Access Communication Technologies IV
Benjamin Dingel; Raj Jain; Katsutoshi Tsukamoto, Editor(s)

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