1550nm Superluminescent Diodes SLED are optical sources with a rather wide optical bandwidth. In that they differ from both lasers, that have a very narrow spectrum, and white light sources, that exhibit a much larger spectral width. This characteristic mainly reflects itself in a low temporal coherence of the source (which is the limited capability of the emitted light wave to maintain the phase over time). SLED may however exhibit a high degree of spatial coherence, meaning that they can be efficiently coupled into single-mode optical fibers. Some applications take advantage of the low temporal coherence of SLED sources to achieve high spatial resolution in imaging techniques. The coherence length is a quantity frequently used to characterize the temporal coherence of the light source. It is related to the path difference between the two arms of an optical interferometer over which the light wave is still capable to generate an interference pattern.
1550nm Superluminescent Diodes SLED are optical sources with a rather wide optical bandwidth. In that they differ from both lasers, that have a very narrow spectrum, and white light sources, that exhibit a much larger spectral width. This characteristic mainly reflects itself in a low temporal coherence of the source (which is the limited capability of the emitted light wave to maintain the phase over time). SLED may however exhibit a high degree of spatial coherence, meaning that they can be efficiently coupled into single-mode optical fibers. Some applications take advantage of the low temporal coherence of SLED sources to achieve high spatial resolution in imaging techniques. The coherence length is a quantity frequently used to characterize the temporal coherence of the light source. It is related to the path difference between the two arms of an optical interferometer over which the light wave is still capable to generate an interference pattern.
1550nm Superluminescent Diodes SLED are optical sources with a rather wide optical bandwidth. In that they differ from both lasers, that have a very narrow spectrum, and white light sources, that exhibit a much larger spectral width. This characteristic mainly reflects itself in a low temporal coherence of the source (which is the limited capability of the emitted light wave to maintain the phase over time). SLED may however exhibit a high degree of spatial coherence, meaning that they can be efficiently coupled into single-mode optical fibers. Some applications take advantage of the low temporal coherence of SLED sources to achieve high spatial resolution in imaging techniques. The coherence length is a quantity frequently used to characterize the temporal coherence of the light source. It is related to the path difference between the two arms of an optical interferometer over which the light wave is still capable to generate an interference pattern.
Output power 1mW 2mW or 10mW;
Center wavelength 1550nm;
3dB bandwidth of >35nm;
Operating Temperature-45~+70℃;
SM fiber or PM fiber pigtail;
Fiber optic communications system;
Fiber optic Gyroscopes;
Fiber optic sensors;
Optical test instruments;
Optical coherence tomography(OCT);
Biomedical imaging systems.
Parameter | Symbol | Min. | Typ. | Max. | Unit | Notes |
Operating Current | ITH | - | 100 | 200 | mA | CW |
Power in Fiber | PO | 1.0 | 2.0 | 2.5 | mW | CW, ITH=100mA |
3dB bandwidth | Δλ | 35 | - | - | nm | CW |
Center wavelength | λc | 1530 | 1550 | 1570 | nm | CW |
Spectrum modulation | - | - | 0.1 | 0.2 | dB | - |
Extinction | ER | - | 16 | - | dB | CW |
TEC Current | IC | - | - | 2 | A | Tc =-45~+70℃ |
TEC Voltage | VC | - | - | 3.5 | V | Tc =-45~+70℃ |
Thermistor resistance | Rth | 9.5 | 10 | 10.5 | KΩ | Tc =25℃ |
Thermistor B constant | B | - | 3950 | - | K | - |
PIN | DESIGNATIONS | PIN | DESIGNATIONS |
1 | TEC(+) | 14 | TEC(-) |
2 | Thermistor | 13 | Case Ground |
3 | NC | 12 | NC |
4 | NC | 11 | SLD Cathode |
5 | Thermistor | 10 | SLD Anode |
6 | NC | 9 | NC |
7 | NC | 8 | NC |
All products have been tested before shipping out;
All products have 1-3 years warranty.(After the quality guarantee period began to charge appropriate maintenance service fee.)
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If the items you purchase from our store are not of perfected quality, that is they don‘t work electronically to manufacturers specifications, simply return them to us for replacement or refund;
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A: Box optronics can provide 1mW to 15mW versions for choice.
Q: What is the optical connector you requirement?A: Box optronics can customize the optical connector according the requirement for free.
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