Polarization Maintaining fibers, LMA-PM-50 pages

Crystal Fibre ● aeroLASE ● Koheras ● SuperK

LMA-PM-5

Single
Mode

Large
Mode-area

Single-mode 5 µm core polarization-maintaining fiber

Low loss fiber from 400 to 1200 nm
Single-mode at all wavelengths
Polarization maintaining
Radiation hard pure silica fiber
Wavelength independent MFD

This polarization-maintaining single-mode fiber is optimized to
exhibit low loss from 400 nm to 1200 nm while keeping an almost constant mode field diameter.
The fiber is endlessly single-mode (i.e. it has no higher order
mode cut-off) and delivers excellent mode quality at all wavelengths.
The fiber has a standard 125 µm outer diameter and is compatible with all common fiber tools. This product is also available in
a non polarization-maintaining version as the LMA-5.

Applications
- Single-mode PM short wavelength delivery
- Multi-wavelength transmission
- Mode filtering
- Single-mode PM pigtailing
- Short pulse delivery
Typical spectral attenuation and dispersion

Optical properties
Single mode cut-off wavelength*

None

Attenuation @ 532 nm**

< 20 dB/km

Attenuation @ 632 nm

< 10 dB/km

Attenuation @ 1064 nm
Mode field diameter @ 532 nm (1/e2)
Mode field diameter @ 1064 nm (1/e2)

< 5 dB/km
4.2 ± 0.5 µm
4.4 ± 0.5 µm

NA @ 1064 nm (5%)

0.23 ± 0.02

Birefringence n @ 1064 nm
Polarization Extinction Ratio***

1.5·10-4
> 18 dB

Physical properties
Core diameter

5.0 ± 0.5 µm

Outer cladding diameter, OD
Coating diameter

125 ± 2 µm
245 ± 10 µm

Core and cladding material

Typical NA and MFD

Pure silica

Coating material, single layer

Acrylate

Coating-Cladding concent. error

< 10 µm

Proof test level

0.5 %

Standard interfacing options
FC/PC PM connector

0.0 ± 0.5 deg angle

FC/APC PMconnector

8.0 ± 0.5 deg angle

Collapse and cleave

0.0 ± 0.5 deg angle

All interfaces are provided with a 75 ± 25 µm sealing length of
the PCF structure. PM connectors are keyd to the slow axis.
Please contact us for other custom interfacing options.
* TIA-455-80-C standard
** 16 cm bend diameter

*** AKA PXtalk on a 2 m sample

NKT Photonics A/S (Headquarters)
Blokken 84 ● 3460 Birkerød ● Denmark
Phone: +45 4348 3900
Fax:
+45 4348 3901
www.nktphotonics.com

NKT Photonics GmbH
Schanzenstrasse 39 ● Bldg D9-D13
51063 Cologne ● Germany
Phone: +49 221 99511-0
Fax:
+49 221 99511-650

LMA-PM-5-v1-120706

NKT Photonics Inc.
1400 Campus Drive West ● Morganville
NJ 07751 ● USA
Phone: +1 732 972 9937
Fax:
+1 732 414 4094