Monolithic Single Mode Single Window Wideband 1¡Á3 Couplers 
                                                                                                         --SWMC-1¡Á3
¡¡ ¡¡
KEY FEATURES APPLICATIONS
Ultra-compact version Optic communication system
Low wavelength dependence LAN
Low polarization dependence Fiber optic sensor
Environmentally stable Test Instrument
¡¡ ¡¡
¡¡ ¡¡
¡¡ ¡¡
¡¡ ¡¡
SPECIFICATIONS ¡¡
Grade
Parameter
Grade "S"
Grade "A"
Operating Wavelength (nm)
1310 or 1550,others on request
Bandwidth (nm)
¡À40
¡À20
Coupling Ratio (%)
33/33/33
Excess Loss (dB)
< 0.10 
Max. Insertion Loss (dB)
5.4 
Polarization Dependent Loss (dB)
 < 0.05 
 < 0.10 
Wavelength Dependent Loss (dB)
¡À0.2 
Uniformity (dB)
< 0.8 
Directivity (dB)
> 50
Thermal Stability (dB/¡æ)
0.002 
Operating Temperature (¡æ)
-40 to +85
Lead length 
1 meter
Lead Type 
0: 250 um bare fiber 1: 900 um loose tube
Package Dimensions (mm)
U.V.§¶3.5(Dia.)¡Á40(Length)
Mini Type:§¶3.5(Dia.)¡Á30(Length)
¡¡
¡¡
ORDERING EXAMPLE
e.g. SWMC-1310-33/33/33-0-A

¡¡