Polarization Independent Optical Isolator

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The polarization independent optical isolator adopts a Faraday rotator with combinational structure design to ensure optimum working status.
Meanwhile, in order to ensure optimized performance, this polarization insensitive optical isolator is fitted with a RoHS compliant collimator. The collimator is produced based on advanced polishing and adhesion techniques, offering very high environmental stability.

Applications
The polarization independent optical isolator is a kind of passive optical component which works based on the non-reciprocal behavior of Faraday rotator.

Working on the basis of the Faraday effect produced by magneto-optic effect, the device supports light transmission in only one certain direction, while preventing the light from being reflected back the opposite way. The important performance figures of the product include high return loss, high degree of isolation for back-reflected light, and low insertion loss in forward direction. Thus, the optical isolator can largely improve light transmission efficiency, and is commonly used in optical fiber amplifiers like EDFAs, fiber lasers, DWDM systems, and fiber-optic communications equipment.

Technical Specifications (except connectors)

Item	Specifications
Operating wavelength (nm)	1310 or 1550
Type	Single stage		Double stage
Grade	P grade	A grade	P grade	A grade
Typical isolation degree (dB)	40	40	56	50
Min. isolation degree (dB)	30	28	45	42
Typical insertion loss (dB)	0.35	0.45	0.5	0.5
Max. insertion loss (dB)	0.5	0.7	0.7	0.8
Return loss (dB)	65/60	55/55	65/60	55/55
Polarization (dB)	0.05	0.1	0.05	0.1
Polarization mode dispersion (ps )	0.2	0.25	0.05	0.07
Band width (nm)	±15	±15	±30	±30
Operating temperature (℃)	-5 to 75
Storage temperature (℃)	-40 to 85
Optical fiber type	Corning SMF-28e
Encapsulation dimension (mm)	φ5.5x3.5
Max. power (mW )	300

Encapsulation Dimension

Model Description

XX	XX	X	X	X	XX
Optical isolator	Operating wavelength	Grade	Optical fiber type	Optical fiber length	Connector
IS= single stage	13=1310nm	S=Super	1=Bare Fiber	1=1m	0=None
IU= double stage	14=1480nm	P=Premium	2=900um fiber with white jacket	2=2m	1=FC/APC
	15=1550nm	A=Grade A			2=FC/PC
	LB=L Band				3=SC/APC
					4=SC/PC
					5=ST
					6=LC

Related Names
Optical Diode | Light Transmission Component | Fiber Optic Module

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