Harmonic (HLIT) 10-K/A 2013 FY Annual report (amended)

Exhibit 31.1

HARMONIC INC.

CERTIFICATION

I, Patrick J. Harshman, certify that:

1. I have reviewed this Annual Report on Form 10-K/A of Harmonic Inc.; and

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

Date: April 30, 2014	By:	/s/ Patrick J. Harshman
		Patrick J. Harshman
		President and Chief Executive Officer
		(Principal Executive Officer)