<SEC-DOCUMENT>0001104659-21-153555-index.html : 20211227
<SEC-HEADER>0001104659-21-153555.hdr.sgml : 20211227
<ACCEPTANCE-DATETIME>20211227160353
ACCESSION NUMBER:		0001104659-21-153555
CONFORMED SUBMISSION TYPE:	10-K/A
PUBLIC DOCUMENT COUNT:		25
CONFORMED PERIOD OF REPORT:	20211002
FILED AS OF DATE:		20211227
DATE AS OF CHANGE:		20211227

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:			1002

	FILING VALUES:
		FORM TYPE:		10-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33962
		FILM NUMBER:		211520384

	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>10-K/A
<SEQUENCE>1
<FILENAME>tm2134970d1_10ka.htm
<DESCRIPTION>FORM 10-K/A
<TEXT>
Document 1 - file: tm2134970d1_10ka.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.3
<SEQUENCE>2
<FILENAME>tm2134970d1_ex31-3.htm
<DESCRIPTION>EXHIBIT 31.3
<TEXT>
Document 2 - file: tm2134970d1_ex31-3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.4
<SEQUENCE>3
<FILENAME>tm2134970d1_ex31-4.htm
<DESCRIPTION>EXHIBIT 31.4
<TEXT>
Document 3 - file: tm2134970d1_ex31-4.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>tm2134970d1_10kaimg05.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: tm2134970d1_10kaimg05.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>tm2134970d1_10kaimg07.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: tm2134970d1_10kaimg07.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>tm2134970d1_10kaimg08.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: tm2134970d1_10kaimg08.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>tm2134970d1_10kaimg09.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: tm2134970d1_10kaimg09.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>tm2134970d1_10kaimg010.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: tm2134970d1_10kaimg010.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>tm2134970d1_10kaimg011.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: tm2134970d1_10kaimg011.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>tm2134970d1_10kaimg01.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: tm2134970d1_10kaimg01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>tm2134970d1_10kaimg02.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: tm2134970d1_10kaimg02.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>tm2134970d1_10kaimg03.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: tm2134970d1_10kaimg03.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>tm2134970d1_10kaimg04.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: tm2134970d1_10kaimg04.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>tm2134970d1_10kaimg06.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: tm2134970d1_10kaimg06.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>15
<FILENAME>cohr-20211002.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
<TEXT>
Document 15 - file: cohr-20211002.xsd

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>16
<FILENAME>cohr-20211002_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
Document 16 - file: cohr-20211002_lab.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>17
<FILENAME>cohr-20211002_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
Document 17 - file: cohr-20211002_pre.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>18
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 18 - file: R1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>19
<FILENAME>tm2134970d1_10ka_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 19 - file: tm2134970d1_10ka_htm.html

Document 19 - RAW XML: tm2134970d1_10ka_htm.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>20
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 20 - file: Financial_Report.xlsx

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>21
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 21 - file: Show.js

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>22
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 22 - file: report.css

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>23
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 23 - file: FilingSummary.html

Document 23 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>26
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 26 - file: MetaLinks.json

</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>27
<FILENAME>0001104659-21-153555-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 27 - file: 0001104659-21-153555-xbrl.zip

</DOCUMENT>
</SEC-DOCUMENT>