Luna NPMC NoTail Polarization Maintaining Coupler

NoTail polarization maintaining coupler that splits or combines linearly polarized light in PM fiber systems at 1064, 1310 or 1550 nm.

Operating Center Wavelength: 1550 nm, 1310 nm; 1064 nm
Operating Bandwidth: ±40 nm
Operating Bandwidth: ±20 nm
Type: 1 x 2, 2 x 2

Datasheet

Overview

The NPMC is the NoTail version of the Polarization Maintaining Coupler (PMC) from the Luna passive components line, formerly offered by General Photonics. It can split light from an input PM fiber into output PM fibers, or combine light from PM input fibers into a single PM output fiber, without disturbing the linear state of polarization (SOP) of the light.

The coupler can be used to split high power linearly polarized light into multiple paths, or as a power tap to monitor signal power in a PM fiber system. Applications include PM fiber interferometers, power sharing in polarization sensitive systems and signal monitoring in PM fiber systems.

The NoTail package has no external fiber pigtails, which makes it convenient for laboratory use and storage. NoTail 3- and 4-port components carry mounting magnets for placement on an optical table. The device is offered at 1064 nm, 1310 nm and 1550 nm in 1 x 2 and 2 x 2 configurations, with filter, crystal or fused fiber construction.

The manufacturer lists the passive components product group as discontinued.

Key Features

Compact size
Low insertion loss
Low back reflection
Rugged design
NoTail package with no external pigtails
Available at 1064 nm, 1310 nm or 1550 nm
1 x 2 or 2 x 2 configuration

Specifications

Optical

Operating Center Wavelength	1550 nm, 1310 nm; 1064 nm
Operating Bandwidth 1550 nm, 1310 nm	±40 nm
Operating Bandwidth 1064 nm	±20 nm
Type	1 x 2, 2 x 2
Max. Uniformity	0.6 dB (1 x 2), 0.8 dB (2 x 2)
Min. Extinction Ratio	20 dB (1 x 2), 18 dB (2 x 2) Extinction ratio can be higher for fast-axis blocked version
Excess Loss (NoTail)	< 0.1 dB higher than for the corresponding pigtailed version Excluding connectors
Return Loss	50 dB
Split Ratio	1 ~ 50%
Split Ratio Tolerance 99/1	± 0.2% 1 x 2 and 2 x 2
Split Ratio Tolerance 98/2	± 0.4% 1 x 2 and 2 x 2
Split Ratio Tolerance 95/5	± 1% 1 x 2 and 2 x 2
Split Ratio Tolerance 90/10	± 2% 1 x 2 and 2 x 2
Optical Power Handling	300 mW min.

General

Storage Temperature	-40 to 85 °C
Dimensions (NoTail)	3.5" (L) × 1.5" (W) × 5/8" (H) Values in table are for filter couplers without connectors; specs for fused fiber couplers may be different

Ordering Information

Wavelength	10 = 1064, 13 = 1310nm, 15 = 1550nm
Type	T = Filter, C = Crystal, F = Fused Fiber
Configuration	12 = 1 x 2, 22 = 2 x 2
Coupling Ratio	xx/yy, e.g. 10/90
Connector Type	FC/PC, FC/APC, SC/PC, SC/APC