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OFS Raman Fibers are specifically designed for applications where a high Raman gain efficiency is required. Both standard PM types are designed with a high index core and a small effective area which yields such a high Raman gain efficiency; the PM version employs B2O3 doped stress rods for high birefringence.

With appropriate choice of pump wavelength, the standard Raman fiber can provide gain at any wavelength from 1200 to 1700 nm. Additionally, it offers excellent bending performance and splicing properties, and low attenuation at the water peak.
Unit of Measure

Optical Properties

Type

N/A Non-Standard

Cutoff Wavelength

N/A < 1050 nm

Effective Area

N/A @ 1450 nm, 16.1 ± 1.5 µm2@ 1550 nm, 18.7 ± 1.5 µm2

Attenuation

N/A maximum @ 1450 nm, 0.58 dB/kmmaximum @ 1550 nm, 0.45 dB/kmtypical @ 1450 nm, 0.54 dB/kmtypical @ 1550 nm, 0.42 dB/km

Dispersion

N/A @ 1550 nm, -20 ps/(nm·km)

Dispersion Slope

N/A @ 1550 nm, 0.02 ps/(nm²·km)

Raman Gain Efficiency

N/A @ 1551 nm, 2.5 (W·km)-1

Extinction Ratio (L=100 m)

N/A > 30 dB

PM or non-PM

N/A PM

Peak Raman Gain Efficiency (typical)

N/A 2.5 (W·km)-1using a depolarized pump at 1453 nm (W·km)-1

Birefringence (typical)

N/A 2.8 x 10-4

Physical Properties

Cladding Diameter

N/A 125 ± 1 µm

Cladding Non-Circularity

N/A < 2%

Core Eccentricity

N/A < 0.6 µm

Coating Diameter

N/A 245 ± 5 µm

Mechanical and Testing Data

Proof Test Level

N/A 100 kpsi0.689 GPa

How to order a HNLF-ST Module:

Order From Location

N/A DENMARK LOCATION
+45 43 45 8888
Priorparken 680, DK-2605
Broendby, Denmark

Order By Item #

N/A 27313

Typical Applications

N/A Discrete Broadband Raman Amplifiers Raman Lasers

Options

N/A The fiber can be delivered on a 29 x 175 mm spool, optionally with standard fiber pigtails spliced to it, and with a layer of protective silicone to protect against mechanical damage.

Delivery

N/A On a 105 x 265 mm spool