1854 nm & 1877 nm Distributed Feedback Laser (TOP Wavelength)

References

nanoplus Nanosystems and Technologies GmbH Products DFB Laser 1854 & 1877 nm

Discover Our Wavelengths

Distributed Feedback Laser

1854 nm & 1877 nm
TOP Wavelength

DFB laser diodes at 1854 nm and 1877 nm are used for water vapour detection.

Please have a look at the key features, specifications and applications.

Specifications

Mountings & Accessories

Applications

Papers & Links

Specifications

parameters	symbol	unit	minimum	typical	maximum
parameters operating wavelength (at T_op, I_op)	symbol λop	unit nm	minimum	typical 1854 & 1877	maximum
parameters optical output power (at λ_op)	symbol P_op	unit mW	minimum	typical 5	maximum
parameters operating current	symbol I_op	unit mA	minimum	typical 100	maximum
parameters operating voltage	symbol V_op	unit V	minimum	typical 2	maximum
parameters threshold current	symbol I_th	unit mA	minimum 8	typical 18	maximum 32
parameters side mode suppression ratio	symbol SMSR	unit dB	minimum	typical > 35	maximum
parameters current tuning coefficient	symbol C_I	unit nm / mA	minimum 0.017	typical 0.025	maximum 0.035
parameters temperature tuning coefficient	symbol C_T	unit nm / K	minimum 0.17	typical 0.19	maximum 0.21
parameters operating chip temperature	symbol T_op	unit °C	minimum +20	typical +25	maximum +45
parameters operating case temperature (non-condensing)	symbol T_C	unit °C	minimum -20	typical +25	maximum +55
parameters storage temperature (non-condensing)	symbol T_S	unit °C	minimum -40	typical +20	maximum +80

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Mountings & Accessories

TO56 - the absolute basic

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availability: 760 nm - 3000 nm
TEC: no TEC
NTC: no NTC
cap: uncoated cap (optional)

window: uncoated window (optional)
plug&play: collimation required
size: small footprint
costs: low cost

TO5 - our workhorse

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availability: 760 nm - 3000 nm
TEC: integrated TEC
NTC: integrated NTC
cap: AR coated cap (optional)

window: AR coated window (optional)
plug&play: collimation required
size: small footprint
costs: low cost

c-mount - basic OEM integration

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availability: 760 nm - 3000 nm
TEC: no TEC
NTC: no NTC
cap: NA

window: NA
plug&play: collimation required
size: low cost

SM-BTF - our fiber-coupled workhorse

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availability: 760 nm - 5500 nm
TEC: integrated TEC
NTC: integrated NTC

plug&play: fiber-coupled beam
size: large footprint
costs: higher cost than free space

PM-BTF - high-end fiber coupling

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availability: 1064 nm - 2050 nm
TEC: integrated TEC
NTC: integrated NTC

plug&play: fiber-coupled beam
size: large footprint
costs: higher costs than free space

chip on heatspreader - high-end OEM integration

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availability: 760 nm - 6000 nm
TEC: no TEC
NTC: integrated NTC
cap: NA

window: NA
plug&play: collimation required
size: smallest footprint
costs: low cost

Heatsink for TO5 / TO66

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availability: 760 nm - 6500 nm
NTC: integrated (optional)
heat distribution: warranted
connectors: for laser diode driver & temperature controller
posts: M6 thread for optical table

cage system: standard
collimation: none

Lens on cap

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availability: 1850 nm - 6500 nm
heat distribution: none, use separate heatsink
connectors: TO66 connectors only
posts: none, use separate heatsink

cage system: none, use separate heatsink
collimation: high-end collimation, divergence < 4 mrad

Applications

H₂O

Isotopologue ratio measurements: H₂O

Water isotopologue measurements are carried out in various research fields like climate and paleoclimate studies, geological surveys, hydrological studies, and clinical research for diagnosis.

[ 167 , 105 ]

CO₂ & H₂O

Isotope detection by NASA Mars Rover Curiosity: CO₂ and H₂O

NASA’s flagship Rover Curiosity detects CO₂ and H₂O isotopes based on their tunable laser spectrometer SAM. The analysis of soil samples is to determine whether Mars is or has been a suitable living environment. We are proud that the instrument uses a 2.78 µm nanoplus laser for this measurement.

[ 115 , 25 ]

H₂O

Optimization of internal combustion engines: H₂O

The automotive industry designs new engines to increase fuel efficiency and reduce pollutant emission. Exhaust gas recirculation has become a standard technology for emission control. A newly developed laser hygrometer measures water vapour in such engines with microsecond time resolution and in situ. This method helps to rapidly quantify recirculated gas fractions and to eventually optimize combustion.

[ 47 ]

H₂O

Monitoring of climate processes: H₂O

Ecologists are worried about the melting of permafrost soils in the northern hemisphere. Greenhouse gases like CO₂ or CH₄ that are stored in the soil might be released in this case. Another, less observed, thread comes from the evaporation and condensation of large water vapor volumes. A laser-based hygrometer for mobile field applications has been developed. It measures water vapour in situ and at low concentrations. An airborn approach for monitoring climate processes is the use of a multi-wavelength H₂O-Differential Absorption Lidar. It examines the whole troposphere and lower stratosphere simultaneously.

[ 46 , 21 ]

H₂O

Quality control in natural gas pipelines: H₂O

Water vapour measurement is critical for gas companies to meet quality specifications and to protect pipelines from corrosion. False positives are very costly. Often the gas cannot be delivered if it is "wet".

H₂O

Combustion control in high temperature processes: H₂O

Water vapour is often examined in combustion and propulsion processes as it is a primary product of hydrogen and hydrocarbon fuels.

[ 154 , 153 , 121 , 120 , 70 , 65 , 28 , 17 , 16 , 15 ]

Papers & Links

# 4 Laser-Based Analyzers – Shining New Stars

P. Nesdore, Gases & Instrumentation, March/April 2011, pp. 30-33,

# 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, 10, 2010, pp. 2492-2510,

# 15 Scanned-wavelength-modulation spectroscopy near 2.5 µm for H₂O and temperature in a hydrocarbon-fueled scramjet combustor

C. S. Goldenstein, I. A. Schultz, R. M. Spearrin, J. B. Jeffries, R.K. Hanson, Appl. Phys. B,, 116, 3, September 2014, pp 717-727.,

# 16 Diode laser measurements of linestrength and temperature-dependent lineshape parameters of H₂O-, CO₂-, and N₂-perturbed H₂O transitions near 2474 and 2482 nm

C.S. Goldenstein, J.B. Jeffries, R.K. Hanson, Journal of Quantitative Spectr. & Radiative Transfer, 130, 2013, pp. 100–111.,

# 17 Wavelength-modulation spectroscopy near 2.5 µm for H₂O and temperature in high-pressure and -temperature gases

C.S. Goldenstein, R.M. Spearrin, J.B. Jeffries, R.K. Hanson, Appl. Phys. B, 116, 3, September 2014, pp 705-716.,

# 19 Measurements of Mars Methane at Gale Crater by the SAM Tunable Laser Spectrometer on the Curiosity Rover

C.R. Webster, P.R. Mahaffy, S.K. Atreya, G.J. Flesch, K.A. Farley, 44th Lunar and Planetary Science Conference,, LPI Contribution No. 1719, March 18-22 2013, p. 1366.,

# 21 The airborne multi-wavelength water vapor differential absorption lidar WALES: system design and performance

M. Wirth, A. Fix, P. Mahnke, H. Schwarzer, F. Schrandt, G. Ehret, Appl. Phys.B, 96, 1th July 2009, pp. 201-213,

# 25 Isotope Ratios of H, C, and O in CO₂ and H₂O of the Martian Atmosphere

C.R. Webster, P.R. Mahaffy, G.J. Flesch, P.B. Niles, J. Jones, L.A. Leshin, S.K. Atreya, J.C. Stern, L.E. Christensen, T. Owen, H. Franz, R.O. Pepin, A. Steele, Science, 341, 6143, 2013, pp. 260-263.,

# 28 In situ combustion measurements of H₂O and temperature near 2.5 µm using tunable diode laser absorption

A. Farooq, J.B Jeffries, R.K Hanson, Meas. Sci. Technol., 19, 2008, 075604, pp. 11.,

# 30 Kalman filtering real-time measurements of H₂O isotopologue ratios by laser absorption spectroscopy at 2.73 µm

T. Wu, W. Chen, E. Kerstel, E. Fertein, X. Gao, J. Koeth, Karl Roessner, D. Brueckner , Opt. Lett., 35, 5, 2010, pp. 634.636.,

# 34 High power pulsed 976 nm DFB laser diodes

W. Zeller, M. Kamp, J. Koeth, L. Worschech, Photonic Microdevices/Microstructures for Sensing, II, 76820T, 2010,

# 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 , Journal of Biomedical Optics, 18 (12), December 2013, 127005,

Optical properties

nanoplus distributed feedback lasers show outstanding spectral, tuning and electrical properties.

Spectrum 1877 nm DFB

Typical spectrum of a nanoplus 1877 nm distributed feedback laser diode

Tuning 1877 nm DFB

Typical mode hop free tuning of a nanoplus 1877 nm distributed feedback laser diode

PI Curve 1877 nm DFB

Typical power, current and voltage characteristics of a nanoplus 1877 nm distributed feedback laser diode

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Product Brief

More information

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.

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1854 nm & 1877 nmTOP Wavelength

Distributed Feedback Laser

1854 nm & 1877 nmTOP Wavelength

Optical properties

Product Brief

Your Requirement

1854 nm & 1877 nm
TOP Wavelength

1854 nm & 1877 nm
TOP Wavelength