780-1550nm 1x2 / 2x2 PM Filter Coupler (High Extinction Ratio)
High-extinction-ratio Polarization-Maintaining Filter Coupler utilizing precision micro-optics and thin-film filter technology. Provides ultra-flat wavelength coupling across 780nm to 1550nm with high extinction ratio (>22 dB) and low insertion loss for interferometry and seed laser splitting.
Technical Specifications
Parameter
Specification
Unit
Port Configuration
1x2 / 2x2
-
Center Wavelength
1550, 1310, 1064, 980, 850, 780
nm
Operating Bandwidth
±40 (1310/1550), ±20 (780-1064)
nm
Coupling Ratio Options
01/99, 05/95, 10/90, 20/80, 50/50
%
Max. Excess Loss
0.6 (1310/1550), 0.8 (980/1064), 1.0 (780/850)
dB
Min. Extinction Ratio @ 23°C
20 (Both axes) / 22 (Fast axis blocked)
dB
Min. Return Loss
50
dB
Max. Optical Power (CW)
500
mW
Fiber Type
PM Panda Fiber on all ports
-
Operating Temperature
-5 to +70
°C
Storage Temperature
-40 to +85
°C
Package Dimensions
dia. 2.5 x 20 mm / dia. 2.5 x 25 mm
mm
Technical Datasheet Note
Filter-based construction delivers much wider spectral flatness than fused couplers over environmental temperature changes.
Filter-based construction delivers much wider spectral flatness than fused couplers over environmental temperature changes.
Configuration and ordering notes
Configuration parameters include port count (1x2 tap or 2x2 splitter), coupling ratio, and operating wavelength.
Selection Guidance: Review footprint reduction, splice elimination and optical loss budget in our Mini & Hybrid Devices for CPO & Transceivers Guide ↗ or Mini vs Standard Isolator Guide ↗.
Key Applications
Coherent optical sensing and interferometry; Fiber optic gyroscopes; Optical amplifier tap monitoring; Quantum optics.
Package Drawing
Need an exact configuration?
A quotation review can begin with the application, quantity and available component information. Wavelength, optical power, fiber and termination details can be clarified with engineering.