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DFB Diode Lasers, Single Mode
Single ModeDescription:
DFB Lasers, 760nm .. 2800nm, single mode, narrow linewidth with good side mode suppression. Single mode emission is ensured via a Bragg grating. Free space and fiber pigtailed versions available. Check our stock list for availability.
Distributed Feedback (DFB):
Distributed Feedback (DFB) Diode Lasers are fixed wavelength single mode diode lasers. Typical geometrical sizes of the laser chip are 1000µm x 500µm x 200µm (length x width x height). The laser chip is grown by MOVPE of compound semiconductor material. The optical gain is provided by double heterostructure which include several Quantum Wells for electronic confinement. Typcal emitter width range between 3µm and 7µm. The single mode emission is enforced by a Bragg grating with the laser chip. The surfaces of the laser chip act as cavity mirrors due to the difference of the refractive index of the laser material and the surrounding air. The rear facet of the laser chip is provided with a high reflection coating. The front facet of the laser chip is provided with a high quality antireflection coating for avoiding the Fabry Perot modes of the laser chip. Distributed Feedback (DFB) Diode Lasers are available at almost any wavelength between 760nm and 2800nm.
Default Wavelength:
All listed DFB wavelength indicated as "Manufactured on Request" within the "Specification" Section are available from stock and are ready to be assembled into the requested type of housing. Please contact us in case your required wavelength is not included within the list.
Customized Wavelength Selection:
Available wavelength range from 760nm to 2800nm. Due to a special manufacturing method, customized wavelength can be provided with a selection of below 2nm even for single units. Please contact us with your special wavelength requirement.
Application Wavelength:
Wavelength selected DFB Lasers are provided for typical applications. Examples are water vapor, methane and others. Please contact us with your special requirement.
Packaging Options:
DFB Lasers either TO3-cans with integrated thermoelectric cooler, or TO5 cans with integrated thermoelectric cooler or butterfly packages with thermoelectric cooler and single mode fiber coupling.
Available from Stock | 
Manufactured on Request | 
Temporarily not Available€ = EUR, $ = USD
Last shop update: 02/08/24
Brochures
- Diode Lasers (DFB)Distributed Feedback Lasers
Technical Drawings
- Technical Drawing - 14 PIN Butterfly (Pump Laser Layout)
- Technical Drawing - 14 PIN Butterfly (Sensor Laser Layout)
- Technical Drawing - 14 PIN Butterfly (Telecom Laser Layout)
- Technical Drawing - TO39 (DFB Laser)Laser Carrier: TO39 with Peltier Cooler
- Technical Drawing - TOC3Laser Carrier: TO3 with Peltier Cooler
Technical Documents
- Technical Note – No. 01Diode Laser - Principles of Operation
- Technical Note – No. 09Tunable Lasers - Littman/Metcalf vs. Littrow vs. DFB - Selection Guide
- Technical Note – No. 36Concepts for DFB Lasers
- Technical Note – No. 39Modulation Performance of DFB Lasers
