<SEC-DOCUMENT>0000021510-17-000021-index.html : 20170801
<SEC-HEADER>0000021510-17-000021.hdr.sgml : 20170801
<ACCEPTANCE-DATETIME>20170801161440
ACCESSION NUMBER:		0000021510-17-000021
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20170801
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20170801
DATE AS OF CHANGE:		20170801

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COHERENT INC
		CENTRAL INDEX KEY:			0000021510
		STANDARD INDUSTRIAL CLASSIFICATION:	LABORATORY ANALYTICAL INSTRUMENTS [3826]
		IRS NUMBER:				941622541
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33962
		FILM NUMBER:		17996883

	BUSINESS ADDRESS:	
		STREET 1:		5100 PATRICK HENRY DR
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054
		BUSINESS PHONE:		4087644000

	MAIL ADDRESS:	
		STREET 1:		5100 PATRICK HENRY DRIVE
		STREET 2:		MAIL STOP P38
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COHERENT RADIATION
		DATE OF NAME CHANGE:	19770604
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>coherent-form8xk202august2.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: coherent-form8xk202august2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>cohr_form8kxexhibitxq3x2017.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: cohr_form8kxexhibitxq3x2017.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>cohrprletterhead.jpg
<TEXT>
Document 3 - file: cohrprletterhead.jpg

</DOCUMENT>
</SEC-DOCUMENT>