Description

1550nm Multimode Fiber Optic Isolator

1550nm Multimode Fiber Optic Isolator is a fiber passive component built with multimode fiber, it allows light signal to be delivered in one forward direction and avoid the back reflection light, it’s widely used in amplifier system, fiber optic sensor system to protect the light source and lower down the optical signal noise. High power type is available upon request.

Application:	Features:
Fiber Amplifier	High Isolation
Fiber Optic Sensor	Multimode
Fiber Laser	Low Insertion Loss
Lab & Research	High Reliability

Specification:

Parameter	Symbol	Value		Unit
Center Wavelength	λ	1550		nm
Bandwidth	BW	±15		nm
Stage		Single Stage	Dual Stage	–
Typ. Insertion Loss	IL	0.5	0.6	dB
Max. Insertion Loss	IL	0.8	0.9	dB
Typ. Peak Isolation	ISO	35	50	dB
Min. Isolation	ISO	25	40	dB
Min. Return Loss	RL	35		dB
Max. Optical Power (CW)	P	500		mW
Max. Tensil Load		5		N
Fiber Type		50/125 or 62.5/125 MM fiber		–
Operating Temperature	T	-5~70		℃
Storage Temperature	T	-40~85		℃
Package Dimension		Φ5.5×L35		mm

Notice: Above specifications are tested at center wavelength without connector in room temperature @23℃.

For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower.

Drawing:

Ordering Information (Part Number):

MMISO-WWWW-S-FF-J-LL-CC
WWWW	S	FF	J	LL	CC
Wavelength	Stage	Fiber Type	Fiber Jacket	Fiber Length	Connector
1310 – 1310nm	S – Single Stage	M5 – 50/125 MM fiber	B – 250um Bare Fiber	05 – 0.5m	NE – None
1550 – 1550nm	D – Dual Stage	M6 – 62.5/125 MM fiber	9 – 900um Loose Tube	10 – 1.0m	FA – FC/APC
SSSS – Specify		M1 – 105/125 MM fiber	2 – 2.0mm Loose Tube	15 – 1.5m	FU – FC/UPC
		SS – Specify	3 – 3.0mm Loose Tube	20 – 2.0m	SA – SC/APC
				SS – Specify	SU – SU/APC
					LA – LC/APC
					LU – LC/UPC
					SS – Specify

Example: MMISO-1550-D-M5-9-10-FU is the PN for 1550nm Multimode Fiber Optic Isolator, Dual Stage, 1.0m 50/125 MM fiber, 900um loose tube, FC/UPC connector