Business segments and geographic information - Schedule of Total Revenues by Percentage from Individual Customers Representing Ten Percent or More of Total Revenues (Details) - Revenue - Customer Concentration Risk	12 Months Ended
	Jun. 28, 2024	Jun. 30, 2023	Jun. 24, 2022
Nvidia Corporation
Revenue, Major Customer [Line Items]
Concentration of risk percentage	35.10%	12.50%
Cisco Systems Inc.
Revenue, Major Customer [Line Items]
Concentration of risk percentage	13.40%	15.60%	25.40%
Lumentum Operations LLC
Revenue, Major Customer [Line Items]
Concentration of risk percentage		15.40%	10.30%
Infinera Corporation
Revenue, Major Customer [Line Items]
Concentration of risk percentage		12.40%	12.50%