GOODWILL AND INTANGIBLE ASSETS (Tables)

12 Months Ended

Jan. 02, 2016

GOODWILL AND INTANGIBLE ASSETS

Schedule of changes in the carrying amount of goodwill

	Photonics			Lasers			Optics
(In thousands)	Group			Group			Group			Total
Balance at December 28, 2013:
Goodwill	98,808			111,038			41,314			251,160
Accumulated impairment losses	(47,458		)	(104,562		)	(20,339		)	(172,359		)
	51,350			6,476			20,975			78,801
Goodwill allocated to acquisition	—			19,543			—			19,543
Foreign currency impact	—			(820		)	—			(820		)
	51,350			25,199			20,975			97,524
Balance at January 3, 2015:
Goodwill	98,808			129,761			41,314			269,883
Accumulated impairment losses	(47,458		)	(104,562		)	(20,339		)	(172,359		)
	51,350			25,199			20,975			97,524
Goodwill allocated to acquisition	—			6,922			—			6,922
Foreign currency impact	—			(686		)	—			(686		)
	51,350			31,435			20,975			103,760
Balance at January 2, 2016:
Goodwill	98,808			135,997			41,314			276,119
Accumulated impairment losses	(47,458		)	(104,562		)	(20,339		)	(172,359		)
	$	51,350		$	31,435		$	20,975		$	103,760

Schedule of intangible assets, excluding goodwill

As of January 2, 2016, acquisition related intangible assets were as follows:

	Amortization	Gross		Accumulated			Carrying
(In thousands)	Period	Value		Amortization			Value
Intangible assets subject to amortization:
Developed technology	10-20 years	$	39,669	$	(12,490	)	$	27,179
Customer relationships	up to 10 years	28,644		(21,758		)	6,886
In-process research and development	10 years	15,094		(2,378		)	12,716
Other	3 months-10 years	2,181		(1,407		)	774
		85,588		(38,033		)	47,555
Intangible assets not subject to amortization:
Trademarks and trade names		18,265		—			18,265
Intangible assets		$	103,853	$	(38,033	)	$	65,820

As of January 3, 2015, acquisition related intangible assets were as follows:

	Amortization	Gross		Accumulated			Carrying
(In thousands)	Period	Value		Amortization			Value
Intangible assets subject to amortization:
Developed technology	10-20 years	$	45,646	$	(16,782	)	$	28,864
Customer relationships	up to 10 years	47,827		(37,312		)	10,515
In-process research and development	10 years	13,461		(1,496		)	11,965
Other	3 months-10 years	7,461		(6,299		)	1,162
		114,395		(61,889		)	52,506
Intangible assets not subject to amortization:
Trademarks and trade names		18,305		—			18,305
Intangible assets		$	132,700	$	(61,889	)	$	70,811

Schedule of estimated aggregate amortization expense for future fiscal years

(In thousands)	Estimated Aggregate Amortization Expense
2016	$	8,325
2017	7,159
2018	4,995
2019	4,404
2020	4,017
Thereafter	16,248
	$	45,148