Attachment: FORM 10-K/A

Exhibit 31.3

 

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO

EXCHANGE ACT RULE 13a-14(a)

 

I, Andreas W. Mattes, certify that:

 

1.I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K/A of Coherent, 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: December 27, 2021

 

  By: /s/ ANDREAS W. MATTES
    Andreas W. Mattes
    President and Chief Executive Officer

 

 

Exhibit 31.4

 

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO

EXCHANGE ACT RULE 13a-14(a)

 

I, Kevin Palatnik, certify that:

 

1.I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K/A of Coherent, 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: December 27, 2021

 

  By: /s/ KEVIN PALATNIK
    Kevin Palatnik
    Executive Vice President and Chief Financial Officer

 

cohr-20211002.xsd
Attachment: XBRL TAXONOMY EXTENSION SCHEMA

cohr-20211002_lab.xml
Attachment: XBRL TAXONOMY EXTENSION LABEL LINKBASE

cohr-20211002_pre.xml
Attachment: XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE