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Goodwill and Other Intangible Assets - Schedule of Changes in Goodwill (Details) - USD ($) $ in Millions			3 Months Ended	9 Months Ended
	Aug. 15, 2022	Aug. 03, 2022	Apr. 01, 2023	Apr. 01, 2023
Changes in goodwill
Balance as of July 2, 2022				$ 368.9
Balance as of April 1, 2023			$ 696.2	696.2
Optical Communications
Changes in goodwill
Balance as of July 2, 2022				363.5
Balance as of April 1, 2023			690.8	690.8
Commercial Lasers
Changes in goodwill
Balance as of July 2, 2022				5.4
Balance as of April 1, 2023			5.4	5.4
Acquisition of NeoPhotonics
Changes in goodwill
Goodwill, acquired during period				316.4
Balance as of April 1, 2023		$ 316.4
Acquisition of NeoPhotonics \| Optical Communications
Changes in goodwill
Goodwill, acquired during period		$ 318.3		316.4
Goodwill measurement of adjustment			2.0	1.9
Acquisition of NeoPhotonics \| Commercial Lasers
Changes in goodwill
Goodwill, acquired during period				0.0
Acquisition of IPG product lines
Changes in goodwill
Goodwill, acquired during period				10.9
Acquisition of IPG product lines \| Optical Communications
Changes in goodwill
Goodwill, acquired during period	$ 6.5			10.9
Balance as of April 1, 2023	$ 10.9
Goodwill measurement of adjustment			$ 4.4	4.4
Acquisition of IPG product lines \| Commercial Lasers
Changes in goodwill
Goodwill, acquired during period				$ 0.0