51nano-N-980-2.3-TH4-P-5-2-18-0-150

Fiber-coupled low coherence laser source with single-mode fiber cable (OEM version)

51nano-N

Features

The Laser Diode Beam Source of type 51nano-N-980-2.3-TH4-P-5-2-18-0-150 has a reduced power noise, a reduced coherence length and a low speckle contrast.

Reduced power noise: typ. < 0.25 % of P_o (RMS, Bandwidth < 1 MHz)
Reduced coherence length: coherence length ≈ 300 µm
Reduced speckle contrast
Wavelength: 980 nm
Laser output power: 2.3 mW
Single-mode fiber cable
FC APC connector (8°-polish)
Modulation analog and TTL
OEM version w/o interlock and w/o key switch

Alternative: Laser Diode Beam Source 51nano-S (with key switch and interlock) or with single-mode fiber cable

Description

The fiber-coupled Laser Diode Beam Source of type 51nano-N-980-2.3-TH4-P-5-2-18-0-150 has a reduced power noise (typ. < 0.25 % of P_o (RMS, Bandwidth < 1 MHz)), reduced coherence length (≈ 300 µm) and a lowered speckle contrast.

Electrical features
The output power is adjustable using a potentiometer or using the two modulation inputs for analog and TTL.

Fiber cable
The source is fiber-coupled to asingle-mode fiber cable. As a result the beam profile is rotationally symmetric with Gaussian intensity distribution. The fiber cable is equipped with an FC APC type connector (8°-polish). The fiber cable has a strain-relief and a protective sleeving (Ø 3 mm). Standard cable length is 150 cm.

Options:

Polarization-maintaining fiber
Core-centered (single-mode only)
Multiple fiber output cables (51nanoC, single-mode only)
Other connector types including FC PC, DIN or AVIO, or E2000
Other fiber cable lengths
Incorporated vacuum feed-through

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 using a switchbox.
As an alternative, a version with key switch and with interlock (conform to EN 60825-1) is available
as type 51nano-S.

Low coherence fiber coupled laser 51nano-N

Technical data

51nano-N-980-2.3-TH4-P-5-2-18-0-150

Order Code

51nano-N-980-2.3-TH4-P-5-2-18-0-150

Will replace

51nanoFCM-N-980-2.3-TH4-P-5-2-18-0-150

Series

51nano-N (single-mode)

Laser class

Wavelength

980 ± 10 nm

Band width

0.7 - 4 nm

Output power

typ. 2.3 mW

Power adjustment

< 1 - 100 %

Power noise

typ. < 0.25 % of P_o (RMS, BW < 1 MHz)

Coherence length

≈ 300 µm

Fiber cable

single-mode

Fiber type

SMC-980

Nominal fiber NA

0.12

Effective fiber NA_e²

0.093 ± 10 % (1/e²)

Mode field diameter MFD

6.7 µm ± 10 % (1/e²)

Fiber cable length

1.5 ± 0.05 m (standard)

Fiber cable type

Ø 3 mm with Kevlar strain-relief

Fiber connector type

FC APC (standard)

Power stability

max. 12 % power variation between 15°C and 35°C

Electronics type

Electr. cable length

1.5 ± 0.1 m (standard)

Connector type

5 pin (male, Lumberg SV50)

Supply voltage

5.0 ± 0.2 V

Max. current consumption*

260 mA

Modulation inputs

TTL

Analog

Max. input voltage

5 V

Voltage for P_min / P_O

< 0.8 V / > 2.4 V

0 V / 2.5 V

Input impedance

22 kOhm

Max. modulation frequency

100 kHz

Time delay ON/OFF*

1.5/0.1 µs

2/0.3 µs

Rise / fall time*

1.0/1.0 µs

* Typical value. Depends on laser diode.

Operating temperature

15 - 35°C ± 0.5°C

Warm-up time

approx. 10 min

Air humidity

max. 90 % non-condensing

Weight

530 g

Dimensions

50 x 58 x 166 mm

Protection Class

IP30

Dimensions (for a complete dimensional drawing please refer to the downloads section)

Low coherence fiber coupled laser 51nano

Technotes

Downloads

000824000400.pdf (Dimensional drawing)

000829000900.stp (STEP model)

000829000900.stp (STEP model, for registered users only)

Conformity_51nano_2023_E_web.PDF (CE certificate)

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