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Variable Optical Attenuator

This product using the MEMS chip with a movable mirror on the silicon. The mirror attenuates the laser light power by coupling the input beam onto the output fiber. The applied voltage to the device controls the mirror tilt angle, thus the desired attenuation amount.

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Features

· Low insertion loss

· Low polarization dependent loss

· Miniature design

· Low power consumption

· High shock & vibration immunity

· Telcordia 1209 & 1221 compliant

Applications

· Channel on/off switch

· Channel equalization - Receiver protection

· Power equalization in OADM/ROADM

· Power equalization in VMUX

· EDFA GAIN-TILT control

Specifications

Parameter	Unit			Specifiction
Configuration				Bright	Dark
Wavelength Range	nm			C band 1525 - 1570	L band 1570 - 1610
Attenuation Range	dB			25/40	25/40
Repeatability	dB			0.1	0.1
Atteruation Slop	dB/ V			20	20
Insertion Loss	dB			1	1
Return Loss	dB			45	45
Polarization Dependent Loss	0dB			0.2	0.2
	0dB ~ 10dB			0.4	0.4
	10dB ~ 20dB			0.8	0.8
Flat-ness	Broad Application	Band	0dB	0.2	0.2
			0-10dB	1.0	1.0
			10-20dB	2.0	2.0
	Narrow Application		0dB	0.25	0.25
			0-10dB	0.5	0.5
			10-20dB	0.5	0.5
Wear-out	Cycle			10	10
Response Time	ms			5	5
Total Optical Power	mW			500	500
Dimension	mm			16×Φ5.4 (L×D)
Fiber Type				Corning SMF-28(9/125µm)
Fiber Marking				Input port: Red / Output port: Clear
Operating Temperature	°C			-5~70
Storage Temperature	°C			-40~85
Power Consumption	mW			10

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