Fiber-coupled Lasers series 51nanoFI-N with Faraday isolator (PM)

Low coherence laser source with polarization-maintaining fiber cable (OEM version)

51nanoFI-N

Representative product images. Individual product images are found on the individual product pages.

Features

Laser Diode Beam Sources of type 51nanoFI-N have reduced power noise, reduced coherence length and lowered speckle.

OEM version without key switch nor interlock and not conforming to EN 60825-1
Integrated Faraday isolator for feedback protection (>30 dB)
Reduced power noise: typ. < 0.15 % of P_o (RMS, Bandwidth < 1 MHz))
Reduced coherence length: Coherence length ≈ 300 µm
Reduced speckle contrast
Various wavelengths from 405 nm to 1550 nm
Laser output power up to 27 mW
Polarization-maintaining fiber cable (Polarization Extinction Ratio PER ≥ 23 dB (for λ < 600 nm ≥ 21 dB))
FC APC connector (8°-polish), optional DIN AVIO or E-2000, end caps for wavelengths < 635 nm
Beam profile is rotationally symmetric with Gaussian intensity distribution

Alternative: Laser Diode Beam Source 51nanoFI-S (with key switch and interlock)

Low noise, low coherence laser module (typ. < 0.15 % of P_o (RMS, Bandwidth < 1 MHz))
OEM Version
With integrated Faraday isolator

Description

The fiber-coupled Laser Diode Beam Sources of type 51nanoFI-N (OEM version) have reduced power noise (typ. < 0.15 % of P_o (RMS, Bandwidth < 1 MHz)), reduced coherence length (≈ 300 µm) and a lowered speckle contrast. Additionally sources of type 51nanoFI have an integrated Faraday isolator to protect the laser source from back-reflection.

Electrical features
The output power is adjustable using a potentiometer (with protective cap) or using the two modulation inputs for analog and TTL. The electrical cable is 1.5 m long. There are two possible supply voltages 5 V or 12 V. Other electrical cables and connectors on request.

More details on electronics type: HP, H.

Fiber cable
The source is fiber-coupled to a polarization-maintaining fiber cable (standard, polarization extinction ratio > 23 dB). As a result the beam profile is rotationally symmetric with Gaussian intensity distribution and a linear state of polarization. The fiber cable is equipped with an FC APC connector (8°-polish). Fiber connectors with end caps are used for wavelengths < 635 nm. The fiber cables have strain-relief and protective sleeving (Ø 3 mm). Standard cable length is 150 cm.

Fiber Options:

Other connector types including DIN, AVIO or E2000
Other fiber lengths
Incorporated vacuum feed-through

Faraday isolator
Faraday isolators are used to protect the laser sources from back-reflection, which causes mode hopping, laser noise, frequency instability and a shorter laser lifetime. The Faraday isolator has a high isolation > 30 dB.

Laser safety
This OEM version has no key switch or interlock and is not conform to EN 60825-1.
It can be operated conform to EN 60825-1 by means of a switchbox.
As an alternative, a version with key switch and with interlock (conform to EN 60825-1) is available
as type 51nanoFI-S.

Technical data

Fiber-coupled Lasers series 51nanoFI-N with Faraday isolator (PM)

Series

51nanoFI-N

Wavelength

405 nm - 1550 nm

Power noise

typ. < 0.15 % of P_o (RMS, BW < 1 MHz)

Coherence length

≈ 300 µm

Fiber cable

polarization-maintaining

Fiber cable length

1.5 m (standard)

Fiber connector type

FC APC (standard)

Supply voltage

5 V or 12 V

Electr. cable length

1.5 m (standard)

Connector type (5V)

Lumberg SV30 IEC 61076-2-106

Connector type (12V)

Lumberg SV40 IEC 61076-2-106

Cable type

shielded 4 x 0.14 mm²

Modulation

analog and TTL

Operating temperature

15 - 35°C ± 0.5°C

Dimensions

Weight

Order Options

Order Code	Wavelength	Typ.Output Power P_o	Supply Voltage	Fiber Type	Connector	End cap	Electronics Type	Laser Class	Casing Type
51nanoFI-N-405-1-Y07-P-12-4-28-0-150	405 nm	0.9 mW	12 V	Polarization-maintaining	FC APC	x	HP	2	N1
51nanoFI-N-405-13-M29-P-12-4-28-0-150	405 nm	13 mW	12 V	Polarization-maintaining	FC APC	x	HP	3B	N1
51nanoFI-N-445-15-G02-P-12-4-28-0-150	445 nm	15 mW	12 V	Polarization-maintaining	FC APC	x	HP	3B	N1
51nanoFI-N-520-6-O11-P-12-4-28-0-150	520 nm	6 mW	12 V	Polarization-maintaining	FC APC	x	HP	3B	N1
51nanoFI-N-635-1-H10-P-5-2-28-0-150	635 nm	0.9 mW	5 V	Polarization-maintaining	FC APC		H	2	N1
51nanoFI-N-640-15-H21-P-5-2-28-0-150	640 nm	15 mW	5 V	Polarization-maintaining	FC APC		H	3B	N1
51nanoFI-N-660-1-M01-P-5-2-28-0-150	660 nm	0.9 mW	5 V	Polarization-maintaining	FC APC		H	2	N1
51nanoFI-N-660-25-H26-P-5-2-28-0-150	660 nm	25 mW	5 V	Polarization-maintaining	FC APC		H	3B	N1
51nanoFI-N-785-10-Q06-P-5-2-28-0-150	785 nm	10 mW	5 V	Polarization-maintaining	FC APC		H	3B	N2
51nanoFI-N-808-16-G15-P-5-2-28-0-150	808 nm	16 mW	5 V	Polarization-maintaining	FC APC		H	3B	N1
51nanoFI-N-830-10-H19-P-5-2-28-0-150	830 nm	10 mW	5 V	Polarization-maintaining	FC APC		H	3B	N2
51nanoFI-N-850-15-G17-P-5-2-28-0-150	850 nm	15 mW	5 V	Polarization-maintaining	FC APC		H	3B	N1
51nanoFI-N-980-2-TH4-P-5-2-28-0-150	980 nm	2 mW	5 V	Polarization-maintaining	FC APC		H	3R	N2
51nanoFI-N-1064-8-Q05-P-5-2-28-0-150	1064 nm	8 mW	5 V	Polarization-maintaining	FC APC		H	3B	N2
51nanoFI-N-1310-2-M14-P-5-2-28-0-150	1310 nm	2 mW	5 V	Polarization-maintaining	FC APC		H	1	N1
51nanoFI-N-1550-4-Q04-P-5-2-28-0-150	1550 nm	4 mW	5 V	Polarization-maintaining	FC APC		H	1	N1

Other types e.g. with single-mode fiber cable are available.

Technotes

Downloads

Article_51Nano.pdf (Technote)

This downloads section only includes general downloads for the complete series.
Please access the individual product pages (using the product configurator, the product list, order options or the search button if you have a complete order code). Here you will find specific downloads including technical drawings or stepfiles.