Geographic Information, Product Groups And Customer Concentration - Revenues by Product Group (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 28, 2014	Jun. 29, 2013	Jun. 30, 2012
Revenue from External Customer [Line Items]
Revenues	$ 95,911	$ 95,398	$ 102,914	$ 96,648	$ 95,384	$ 101,539	$ 112,071	$ 95,635	$ 390,871	$ 404,629	$ 194,208
40 Gb/s and 100 Gb/s transmission modules
Revenue from External Customer [Line Items]
Revenues									177,443	142,762	67,550
10 Gb/s and lower transmission modules
Revenue from External Customer [Line Items]
Revenues									183,521	236,034	126,658
Industrial and consumer
Revenue from External Customer [Line Items]
Revenues									$ 29,907	$ 25,833	$ 0