Erratum [to ToC]

Due to an error that occurred in processing the April 1998 issue of the IEEE Photonics Technology Letters , the Table of Contents was misprinted and several articles appeared under the wrong Technical Area. First, the Subsystems section appeared following the Modulators and Switches section instead of right before Networks and Systems. The two articles listed under Subsystems by Doerr and by Yoshimoto et al., should have been listed under the Modulators and Switches section. Secondly, the last four articles in the RF Photonics section should not have been listed there, but rather should have been listed under Subsystems. Those articles include the ones by Franck et al., Davies and Conradi, Ogura et al., and Vendier et al. We apologize for the error and we have taken steps to avoid it in the future. Corrections to the two sections with the appropriate articles are presented.