Ten-GHz MMIC-predistortion circuit for improved dynamic range of broadband analog fiber-optic link

✍ Scribed by L. Zhang; P. Myslinski; J. Chrostowski; H. Hua; O. Berolo; J. Lee; F. Harlow

• Book ID: 101268817
• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 325 KB
• Volume: 11
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/(sici)1098-2760(19960420)11:6<293::aid-mop1>3.0.co;2-e

✦ Synopsis

A MMIC predistortion circuit that operates at up to 10 CHz and improces the spurious free dynamic mnge of a broadband arialogfiberoptic link from 108 ~B / H z ~/ ~ to I l l d13/Hz2/' is deiieloped. The experimental results agree with the pegormed theoretical analysis, indicuting that the link dynamic range improuement through the predistortion technique is limited by the high driving coltuge of a standard LiNb03 Mach-Zehnder modulator, that is, by the third-order intercept point of commercial microwaue broadband power amplifiers. I o oilercome this limitation a low-uoltage modulator should be employed.