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M-S-series BroadLighters. Benchtop Broadband Light Sources.
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Product description
Superlum M-S-series BroadLighters are high-power, wide spectrum and low coherence AC powered benchtop light sources based on a single mode fiber coupled superluminescent diode modules (SLDs) of Superlum.
Features
- Very high output power exceeding 30 mW in selected models
- Wide optical spectrum
- Short coherence length
- Changeable output power
- -30 dB peak optical isolation
- Models with optical attenuators
- Remote control through USB or by TTL
- Wide input range power supply unit (100-240 V AC)
- One year / 8000 hours of operation warranty
Changing output power
Superlum offers two types of M-S BroadLighters, namely, with and without a Variable Optical Attenuator (VOA). The former has the suffix "-VA" in the model number.
In both designs, output power is changeable within 0–100% with the step of 10%.
Spectral performance is guaranteed at the full (100%) output power.
In M-S-series light sources without VOAs, the optical output power is changed by varying the SLD drive current,
entailing a change in the shape of the SLD spectrum. The change is not significant for models with
a bell-shaped spectrum but may be large for models with a complex, multi-humped spectrum (see the examples below).
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Spectrum of BroadLighter M-S840.50.25-I. Left – optical spectrum at output levels: 100% (20 mW SMF, black line); 50% (10 mW SMF, blue line); 10% (2 mW SMF, red line). Right – the same but normalized.
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In M-S-series BroadLighters with VOAs, SLD itself always emits 100% of its power. Optical output power is changed with the help of a broadband VOA that is placed after SLD module and optical isolator. For these BroadLighters, changes of optical spectrum with output power are negligible (see the example below). As a rule, Superlum offers M-S-series light sources with VOAs when the light source is based on an SLD with multi-humped spectrum. However, M-S-series devices with VOAs and SLDs with bell-shaped spectrum are available upon request. M-S-series light sources with VOAs are recommended for applications requiring changeable output power but stable spectral shape and center wavelength.
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Spectrum of BroadLighter M-S840.50.25-I-VA. Left – optical spectrum at output levels: 100% (15 mW SMF, black line); 50% (7.5 mW SMF, blue line); 10% (1.5 mW SMF, red line). Right – the same but normalized.
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Optical isolator
All standard light sources have an appropriate built-in optical isolator to protect the SLD from optical feedback.
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Optical characteristics of standard models
Key parameters of standard models are listed in the table below. Optical spectrum and coherence function may be downloaded in PDF format.
 – bell-shaped spectrum,  – multi-humped spectrum.
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| Model number |
Center wavelength (nm) |
Spectral width, FWHM (nm) |
Output power, SM (mW) |
Optical spectrum and coherence function |
| M-S670.7.15-I |
670 ± 10 |
6 |
7 |
8.0 |
10.0 |
PDF (385 KB)
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| M-S780.14.30-I |
780 ± 10 |
12 |
14 |
20.0 |
22.0 |
PDF (385 KB)
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| M-S830.70.15-I |
830 ± 10 |
60 |
70 |
12.0 |
15.0 |
PDF (179 KB)
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| M-S840.25.30-I |
840 ± 10 |
22 |
25 |
20.0 |
22.0 |
PDF (385 KB)
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| M-S840.50.25-I |
840 ± 10 |
48 |
53 |
17.0 |
20.0 |
PDF (225 KB)
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| M-S840.50.25-I-VA |
840 ± 10 |
48 |
53 |
15.0 |
16.0 |
PDF (225 KB)
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| M-S970.25.40-I |
970 ± 10 |
22 |
25 |
30.0 |
32.0 |
PDF (209 KB)
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| M-S980.12.50-I |
980 ± 10 |
10 |
12 |
40.0 |
42.0 |
PDF (209 KB)
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| M-S1060.80.25-I |
1060 ± 10 |
75 (6 dB) |
80 (6 dB) |
18.0 |
20.0 |
PDF (225 KB)
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Physical Specifications
- Overall dimensions (W × H × D): 251 × 112 × 192 mm (9.88 × 4.41 × 7.56 inches).
- Weight (max): 4 kg.
Electrical Power Specifications
- 100-240 V AC, 50/60 Hz, 40 VA MAX.
Product Customization Capabilities
Superlum offers product customization services. A number of the operating characteristics of the M-S-series light sources (e.g. the output power level, center wavelength, spectrum width etc.) may be modified to meet your specific requirements.
Laser Safety Measures
The most of High-Power SLDs of Superlum are Class 3B according to IEC/EN 60825-1:2014. All M-S-series BroadLighter light sources are equipped by the master key control, remote interlock connection, visual/audible alarm, informational warning stickers, etc.
Technical Documentation
Broadlighter M-S without VOA: Download Technical Product Specification in PDF format (415 KB) .
Broadlighter M-S with VOA: Download Technical Product Specification in PDF format (646 KB).
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