Band Pass Filter/Isolator Hybrid
Combination
BFIH Series
Product Description
Oplink’s BFIH is a compact combination of a bandpass filter and a polariza-
tion insensitive optical isolator. The built-in bandpass filter blocks the amplifiers
spontaneous emission (ASE) in the erbium doped fiber amplifier (EDFA), thus
significantly improving the amplifier’s performance.
Performance Specificationns
BFIH Series
Type A
Type B
Unit
Features
Wide Operating Wavelength Range
Compact Size
High Isolation
Ultra Low PDL & PMD
Highly Stable & Reliable
Epoxy-free Optical Path
Isolator Stage
Operating
Wavelength
Range
Pass Channel
Rejection Channel
[1]
Single
Stage
Dual
Stage
Single
Stage
Dual
Stage
nm
dB
< 1.1
> 25
dB
dB
> 36
< 0.4
< 0.2
< 0.05
dB
dB
dB
dB
mW
°C
°C
mm
1528~1563
1450~1495
< 0.8
> 30
> 21
< 0.3
< 0.15
< 0.25
> 36
< 0.4
< 0.2
< 0.05
> 55
< 500
< 1.0
1547.5~1563.5
1450~1540
< 0.9
Pass Channel Insertion Loss
Rejection Channel Insertion Loss
Reverse Direction Isolation
(over pass
Wavelength Dependent Loss
Polarization Dependent Loss
Polarization Mode Dispersion
Return Loss
Maximum Power Handling
Fiber Type
Operating Temperature
Storage Temperature
Package Dimensions
[3]
channel wavelength range 0~70°C, all SOP)
> 21
< 0.3
< 0.15
< 0.25
Applications
Fiberoptic Amplifiers
CATV Fiberoptic Links
WDM Systems
Fiberoptic Instruments
Transmitters and Fiber Laser Sensors
Laboratory R&D
Corning SFM-28
0 to +70
-40 to +85
P1: (ø) 5.5 x (L) 34.0
Note:
[1] The maximum IL is under all states of polarization and within the full operating temperature and wave-
length ranges specified.
[2] All the parameters are excluding connectors
[3] The mechanical tolerance should be +/-0.2mm on all package dimensions unless otherwise custom specified.
S0002 - R11. 20101028
OPLINK [ OPLINK COMMUNICATIONS INC. ]
