Distributed Feedback Lasers: 760 nm - 830 nm
nanoplus offers DFB laser diodes at any wavelength between 760 nm and 830 nm.
Key features of nanoplus distributed feedback laser diodes
- monomode
- continuous wave
- room temperature
- tunable
- custom wavelengths
Why choose nanoplus distributed feedback laser diodes
- stable longitudinal and transversal single mode emission
- precise selection of target wavelength
- narrow laser linewidth
- mode-hop-free wavelength tunability
- fast wavelength tuning
- typically > 5 mW output power
- small size
- easy usability
- high efficiency
- long-term stability
For more than 20 years nanoplus has been the technology leader for lasers in gas sensing. We produce lasers at large scale at our own fabrication sites in Gerbrunn and Meiningen. nanoplus cooperates with the leading system integrators in the TDLAS based analyzer industry. More than 30,000 installations worldwide prove the reliability of nanoplus lasers.
Quick description of nanoplus distributed feedback laser technology
nanoplus uses a unique and patented technology for DFB laser manufacturing. We apply a lateral metal grating along the ridge waveguide, which is independent of the material system. Read more about our patented distributed feedback technology.
Related information for nanoplus DFB laser diodes between 760 nm and 830 nm
Specifications
Mountings & Accessories
Applications
Papers & Links
The following table summarizes the typical DFB laser specifications in the 760 nm to 830 nm range:
| parameters (T = 25 °C) | symbol | unit | minimum | typical | maximum |
|---|---|---|---|---|---|
| operating wavelength (at Top, Iop) | λop | nm | 0.1 nm | ||
| optical output power (at λop) | Pop | mW | 5 | ||
| operating current | Iop | mA | 30 | ||
| operating voltage | Vop | V | 3 | ||
| threshold current | Ith | mA | 5 | 15 | 30 |
| side mode suppression ratio | SMSR | dB | > 35 | ||
| current tuning coefficient | CI | nm / mA | 0.010 | 0.020 | 0.025 |
| temperature tuning coefficient | CT | nm / K | 0.04 | 0.05 | 0.07 |
| operating chip temperature | Top | °C | +20 | +25 | +50 |
| operating case temperature* | TC | °C | -20 | +25 | +50 |
| storage temperature* | TS | °C | -40 | +20 | +80 |
* non-condensing
We offer enhanced specifications for distributed feedback lasers at 760.8 nm for oxygen detection. Please check our Top Wavelengths section for more information.
nanoplus distributed feedback lasers show outstanding spectral, tuning and electrical properties. They are demonstrated in figures 1 - 3. Click on the graphics to enlarge.
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If you are uncertain whether you require a distributed feedback laser, compare the specifications with our Fabry-Pérot lasers or contact us.
nanoplus offers a variety of free space and fiber coupled mountings. Configure your laser according to your needs.
Free space mountings
Select a TO header with or without TEC. The TO headers are hermetically sealed with cap and window. Ask for customization without cap or without window. c-mount is available upon request. Please click on the mounting for detailed specifications and dimensions.
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Fiber coupled mounting
Opt for our SM fiber coupled butterfly package with TEC and thermistor. Please click on the mounting for detailed specifications and dimensions. The SM-BTF is available for lasers up to 2360 nm.
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OEM mounting
For our OEM customers we offer a very small footprint package that is easy to integrate.
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Accessories
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The nanoplus TO5 heatsink facilitates your laser set up by:
- improved heat distribution
- connectors for laser diode driver
- connectors for temperature controller
- M6 thread for optical posts
- easy use with standard cage systems
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The nanoplus TO5 heatsink is available with collimation. The optical set up guarantees a collimated elliptical beam shape.
Lasers in the 760 nm to 830 nm window are used for oxygen detection, atom absorption spectroscopy and frequency conversion purposes.
For detailed absorption data, please refer to HITRAN database and to our Applications by Gas section.
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Please find below a selection of related papers from our literature list.
Let us know if you published a paper with our lasers. We will be happy to include it in our literature list.
#9 DFB Lasers Between 760 nm and 16 µm for Sensing Applications;
W. Zeller, L. Naehle, P. Fuchs, F. Gerschuetz, L. Hildebrandt, J. Koeth, Sensors 2010, 10, pp. 2492-2510.
#33 DFB laser diodes in the wavelength range from 760 nm to 2.5 µm;
J. Seufert, M. Fischer, M. Legge, J. Koeth, R. Werner, M. Kamp, A. Forchel, Spectroch. Acta Part A 60, 2004, pp. 3243-3247.
#51 Noninvasive monitoring of gas in the lungs and intestines of newborn infants using diode lasers: feasibility study;
P. Lundin, E.K. Svanberg, L. Cocola, M.L. Xu, G. Somesfalean, S. Andersson-Engels, J. Jahr, V. Fellman, K. Svanberg, S. Svanberg, J. of Biomed. Opt., 18(12), Dec. 2013, 127005.