1480nm Single / Dual stage Optical Fiber cable Isolator

Optical Fiber cable Isolator 1.Operating wavelength (nm)1480 2.Fiber type Corning SMF-28 3.Single and Dual Optical isolatorDescription of optical isolator

Optical isolator is passive devices which can allow light to be transmitted in only one direction. Optical isolator are used to prevent any light from reflecting back down the fiber, as this light would enter the source and cause backscattering and feedback problems. 

There are two major types of optical isolators: In-line optical isolator and free space optical isolator.

Free space optical isolator:Free space optical isolators, by contrast, do not have an integral connection system. They must be directly mounted to the object that needs isolation. 

  

Single stage free space isolator 

Parameter	P Grade	A Grade
Operating wavelength (nm)	1310 or 1550 Or other
Smallest isolation (dB)	>42	>40
Isolation	>28	>26
Inserts most greatly damages (dB)	0.20	0.25
Pass the light aperture (mm)	0.9
Operating temperature (° C)	-5 ~ + 65
Storage temperature (° C)	-40 ~ +85
Maximum work rate (mw)	300

 Two-stage free space isolator

Parameter	P Grade	A Grade
Operating wavelength (nm)	1310 or 1550 Or other
Smallest isolation (dB)	>60	>55
Isolation	>48	>46
Inserts most greatly damages (dB)	0.30	0.35
Pass the light aperture (mm)	0.9
Operating temperature (° C)	-5 ~ + 65
Storage temperature (° C)	-40 ~ +85
Maximum work rate (mw)	300

 

1480nm Single / Dual stage Isolator:

Performance specification

Product name	1480 single stage isolator		1480 dual stage isolator
Parameter	P Grade	A Grade	P Grade	A Grade
Operating wavelength (nm)	1480
Typical peak isolation (dB)	42	40	55	52
Isolation minimum value *(dB)	32	30	45	44
Insertion loss typical value (dB)	0.4	0.5	0.5	0.6
Insertion loss maximum value(dB)	0.6	0.8	0.7	0.9
Return loss (In/Out) (dB)	> 65/60	> 60/55	> 65/60	> 60/55
Polarization dependent loss (dB)	< 0.05	< 0.1	< 0.05	< 0.1
PMD (dB)	0.2(0.05 available upon request)
Band width (nm)	±15		±30
Operating temperature(°C)	-20 ~ + 70
Storage temperature (°C)	-40 ~ +85
Fiber type	Corning SMF-28
Fiber length	1 rice
Dimensions(mm)	Ø5.5xL35
Power handing (mw)	300

* At 23° C over bandwidth

1480nm Single / Dual stage Optical Fiber cable Isolator