General Photonics PMC Polarization Maintaining Coupler (Pigtailed)

Pigtailed polarization maintaining fiber coupler that splits or combines PM light in 1x2 or 2x2 setups at 1064, 1310 or 1550 nm

Operating Center Wavelength: 1550 nm, 1310 nm; 1064 nm
Operating Bandwidth: ±40 nm
Operating Bandwidth: ±20 nm
Max. Excess Loss (2 x 2): 1.0 dB

Datasheet

Overview

The PMC is a polarization maintaining (PM) fiber coupler from the General Photonics passive component line, now part of Luna. It can split light from one input PM fiber between two output PM fibers. It can also combine light from two PM input fibers into a single PM output fiber. The coupler is offered in 1 x 2 and 2 x 2 configurations, with split ratios from 1 to 50%.

The device can split high-power, linearly polarized light into several paths without disturbing the linear state of polarization (SOP). It can also act as a power tap that monitors signal power in a PM fiber system without affecting the SOP of the light in the fiber. Typical uses are PM fiber interferometers, power sharing in polarization-sensitive systems and signal monitoring in PM fiber systems.

The coupler is housed in a stainless steel package and has low excess insertion loss, low back reflection and a high extinction ratio. Versions are available for 1550 nm, 1310 nm and 1064 nm operation, with filter, crystal or fused-fiber construction. The NoTail version, without external pigtails, is sold as the NPMC.

Luna lists the passive component product group as discontinued.

Key Features

Compact size
Low insertion loss
Low back reflection
Rugged design
Split ratios from 1 to 50%
1 x 2 and 2 x 2 configurations
Available at 1064 nm, 1310 nm and 1550 nm

Specifications

Optical

Operating Center Wavelength	1550 nm, 1310 nm; 1064 nm
Operating Bandwidth 1550 nm, 1310 nm	±40 nm 1550 nm / 1310 nm versions
Operating Bandwidth 1064 nm	±20 nm 1064 nm version
Max. Excess Loss (2 x 2) 1550 nm, 1310 nm	1.0 dB 1550/1310 nm; excess loss for NoTail version is < 0.1 dB higher than the pigtailed version, excluding connectors
Max. Excess Loss (1 x 2) 1064 nm	0.8 dB 1064 nm
Max. Excess Loss (2 x 2) 1064 nm	1.2 dB 1064 nm
Max. Uniformity (1 x 2)	0.6 dB All wavelengths
Max. Uniformity (2 x 2)	0.8 dB All wavelengths
Min. Extinction Ratio (1 x 2)	20 dB Extinction ratio can be higher for fast-axis blocked version
Min. Extinction Ratio (2 x 2)	18 dB Extinction ratio can be higher for fast-axis blocked version
Return Loss	50 dB
Split Ratio	1 ~ 50%
Optical Power Handling	300 mW min.

Split Ratio Tolerances

99/1	± 0.2% 1 x 2 and 2 x 2
98/2	± 0.4% 1 x 2 and 2 x 2
95/5	± 1% 1 x 2 and 2 x 2
90/10	± 2% 1 x 2 and 2 x 2
50/50 (2 x 2)	± 10%
50/50 (1064 nm version) 1064 nm	± 8%

Environmental and Physical

Storage Temperature	-40 to 85 °C
Dimensions (Pigtailed)	Ø 5.5 × 35 mm Values in the table are for filter couplers without connectors; specs for fused fiber couplers may be different

Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.

Applications

Power sharing in PM systems
Power monitoring in PM systems
PM fiber interferometers
R&D laboratories
Optical device test and characterization
Optical coherence tomography

Options & Accessories

Option	Description
10	Wavelength 1064 nm — Wavelength code in ordering information
13	Wavelength 1310 nm — Wavelength code in ordering information
15	Wavelength 1550 nm — Wavelength code in ordering information
T	Type: Filter
C	Type: Crystal
F	Type: Fused Fiber
12	Configuration 1 x 2
22	Configuration 2 x 2
xx/yy	Coupling Ratio — e.g. 10/90
FC/PC	Connector Type FC/PC
FC/APC	Connector Type FC/APC
SC/PC	Connector Type SC/PC
SC/APC	Connector Type SC/APC
NC	No Connector
25	Pigtail Type 250 µm — Connectors not recommended with bare fiber pigtails
90	Pigtail Type 900 µm

Documents & Resources

Components Data Sheets

datasheet

Components Data Sheets

datasheet · PDF