Variable Optical Attenuator

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Variable Optical Attenuator

The fiber optical attenuator is a fiber-coupled device used to reduce or balance the power of the light transmitted from one device to another device，used in fiber optic communications to the the power level of a fiber cable by controlling the amount of signal loss that is passed through the signal.

Specification Download

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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

Variable Optical Attenuator.pdf

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