10.17* CEO Transition and Retirement Agreement, dated April 13, 2019, between the Company and John Ambroseo.  (Previously filed as Exhibit 10.2 to Form 10-Q for the fiscal quarter ended March 30, 2019). 10.18* Credit Agreement, dated as of November 7, 2016, by and among Coherent, Inc., Coherent Holding GmbH, the guarantors from time to time party thereto, the lenders from time to time party thereto, Barclays Bank PLC, as Administrative Agent and L/C Issuer, Bank of America, N.A., as L/C Issuer, and The Bank of Tokyo-Mitsubishi UJF, Ltd., as L/C Issuer.  (Previously filed as Exhibit 10.1 to Form 8-K filed November 8, 2016) 10.19* Amendment No. 1 and Waiver to Credit Agreement, dated as of May 8, 2017, by and among Coherent, Inc., Coherent Holding GmbH, the Guarantors party thereto, the Lenders party thereto and Barclays Bank PLC, as Administrative Agent.  (Previously filed as Exhibit 10.1 to Form 8-K filed on May 9, 2017) 10.20* Amendment No. 2 to Credit Agreement, dated as of July 5, 2017, by and among Coherent, Inc., Coherent Holding GmbH, the Guarantors party thereto and Barclays Bank PLC as Administrative Agent.  (Previously filed as Exhibit 10.2 to Form 10-Q for the fiscal quarter ended July 1, 2017) 10.21* Transition Agreement and Release, dated February 4, 2019, between the Company and Paul Sechrist.  (Previously filed as Exhibit 10.2 to Form 10-Q for the fiscal quarter ended December 29, 2018) 21.1 Subsidiaries 23.1 Consent of Independent Registered Public Accounting Firm 24.1 Power of Attorney (see signature page) 31.1 Certification of Chief Executive Officer pursuant to Exchange Act Rule 13a-14(a)/15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 31.2 Certification of Chief Financial Officer pursuant to Exchange Act Rule 13a-14(a)/15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 32.1** Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 32.2** Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes- Oxley Act of 2002. 101.INS Inline XBRL Instance. 101.SCH Inline XBRL Taxonomy Extension Schema. 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase. 101.DEF Inline XBRL Taxonomy Extension Definition Linkbase. 101.LAB Inline XBRL Taxonomy Extension Label Linkbase. 101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase. 104 Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101). 64 * These exhibits were previously filed with the Commission as indicated and are incorporated herein by reference. ‡ Identifies management contract or compensatory plans or arrangements required to be filed as an exhibit. ** Furnished herewith.