1 Exhibit 23.1 IBDO ALMAGOR & CO. CPA (ISR) 7 Abba Hillel Rd. P.O. Box 3600 Zip 52134, Ramat-Gan, Israel Tel: 972-3-5760606 Fax: 972-3-5754671 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS ------------------------------------------ As independent public accountants, we hereby consent to the inclusion in the amendment to the Current Report (File No. 02-25826) on Form 8-K of Harmonic Lightwaves, Inc. of January 5, 1998 of our report dated May 28, 1997 with respect to the financial statements of N.M. New Media Communications Ltd. Ramat-Gan, Israel IBDO Almagor & Co. March 17, 1998 Certified Public Accountants (Isr.)