DATA
SHEET
FREE SPACE ISOLATOR
FIF-X-XX-XXX-X-XXXX
FEATURES:
High reliability
Low insertion loss
High isolation
Optimized for 1310nm, 1490nm
and 1550nm wavelengths
Wide operating temperature
range
Clear apertures of 0.45mm to
1.1mm available as standard.
Packaging options include round,
open and U shaped housings.
Finisar free space isolators are used in various laser assemblies which require
isolation to prevent optical feedback. The isolators offer excellent performance
with low insertion loss and high isolation.
Our proprietary bonding process, and years of volume manufacturing
experience, result in a high reliability record. Bare isolator chips survive more
than 5,000hrs of damp heat testing without delamination.
Available in single stage or semi-double stage options centered at 1310nm,
1490, or 1550nm, the isolators are offered with a range of clear aperture
diameters from 0.45mm to 1.1mm as standard. Packaging options include
round, open or U shaped housings, see the product selection guide below for
further ordering information.
Single stage isolator, round
housing.
Semi-double stage isolator,
round housing.
FIF-X-XX-XXX-X-XXXX
FREE SPACE ISOLATORS
SPECIFICATIONS
Single Stage Free Space Isolator
Parameter
CWL
Operating Wavelength
Insertion Loss
Minimum Isolation*
Isolation at Centre
Wavelength
Clear Aperture
Tilt Angle
Operating Temperature
Storage Temperature
Units
nm
nm
dB
dB
dB
mm
Degrees
°C
°C
1310
1290-1330
Specification
1550
1530-1570
<0.3
>20
>33dB @ 23°C
0.5~1.1 diameter
6 +/-1
-40 to 85
-40 to +100
1490
1470-1510
*Note: Over all wavelengths and temperatures.
Semi-Double Stage Free Space Isolator
Parameter
CWL
Operating Wavelength
Insertion Loss
Minimum Isolation*
Isolation at Centre
Wavelength
Clear Aperture
Tilt Angle
Operating Temperature
Storage Temperature
Units
nm
nm
dB
dB
dB
mm
Degrees
°C
°C
1480
1465-1600
1520
1500-1540
<0.6
>40
>45dB @ 23°C
0.5~1.1 diameter
6 +/-1
-40 to 85
-40 to +100
Specification
1560
1540-1580
1600
1580-1620
*Note: Over all wavelengths and temperatures.
FIF-X-XX-XXX-X-XXXX
PRODUCT SELECTION
FIF-X-XX-XXX-X-XXXX
By Specs:
0000 = Standard
XXXX= Custom
Shape:
R = Round
O = Open
U = U shape
X = Special
Clear Aperture:
045 = 0.45mm
070 = 0.7mm
110 = 1.1mm
......
Wavelength:
31 = 1310nm
49 = 1490nm
55 = 1550nm
.......
Stage:
S = Single
D = Semi-Double
Free Space
Isolator
Finisar
Examples:
FIF-S-49-090-R-0000
FIF-D-48-090-R-0000
Standard free space isolator, 1490nm, single stage, CA 0.9mm, round
Standard free space isolator, 1480nm, semi-double stage, CA 0.9mm, round
MCU
京公网安备 11010802033920号
EEWORLD
