Distributed feedback lasers – DFB & DBR

Distributed Feedback (DFB) and Distributed Bragg Reflector (DBR) laser diodes are the light sources emitting extremely narrow spectral line with bandwidth below 5MHz and typical Side Mode Suppression Ratio (SMSR) > 40dB. Innolume’s GaAs-based DFB and DBR lasers cover 970-1330nm spectral range by utilizing of InGaAs quantum well (QW) or InAs/GaAs quantum dot (QD) active region and proprietary chip design.

As of today, DFB laser and DBR laser are two of the most commonly utilized laser variants, especially regarding usage in scientific research and operations. Both laser variants operate with one singular longitudional mode, they are also exceptionally reliable regarding efficiency, spectral purity and long-time performance in various applications.

Innolume is your partner for modern DFB laser and DBR laser that can be optimized based on your business needs and specifications. Get in touch with us und learn more about our pioneering technical accomplishments as well as possible applications for our products!

DFB laser – Typical parameters of fiber coupled pulsed laser modules

Part numberCentral
wavelength
Tolerance
±
Output
pulse power1
Pulse
duration
Spectral
width1 (-10dB)
Wavelength
temperature
tunability
Operating
current
nmnmmWnmpm/KmA
DFB-10XX-YY-300-GS1027-1080130050 ps0.15090600
OP-10XX-YY-300-GS (set)21027-1080130060 ps0.15090600
OP-10XX-YY-300-ns (set)21027-108013001-10 ns0.150901000

DFB laser – Typical parameters of fiber coupled laser modules

Part numberCentral
wavelength3
Tolerance4
±
Min output
power
Sidemode
suppression
ratio
Wavelength
temperature
tunability
Wavelength
current
tunability
Max operating
current
nmnmmWdBpm/Kpm/mAmA
DFB-9XX-YY-20968-98612045803150
DFB-10XX-YY-501020-112015045904220
DFB-11XX-YY-501120-1200150451004350
DFB-12XX-YY-501200-1280150451004400
DFB-13XX-YY-501280-1330150451006400

DBR laser – Typical parameters of DBR laser modules

Part numberCentral
wavelength
Tolerance
±
Output
power
Sidemode
suppression
ratio
Wavelength
temperature
tunability
Wavelength
current
tunability
Operating
current
nmnmmWdBpm/Kpm/mAmA
LD-1064-DBR-1501064215040803300
DBR-1064-TO-2501064225040902300

DFB laser & DBR laser – basics regarding the structure of our products

DFB laser (Distributed Feedback)

These laser diodes feature a multi-layered structure with a diffraction grating (Bragg grating) that is periodically structured. This grating is positioned in the active zone and provides optical feedback that can be processed by the laser. These diodes are typically easy tunable for various wavelengths. A DFB laser is a type of single frequency laser diode.

DBR laser (Distributed Bragg Reflector)

A DBR laser consists of multiple sections: This includes the gain section and a separate DBR grating. A waveguide structure on the laser diode is needed to provide feedback based on the specific wavelength. This waveguide also partially acts as an amplifying medium. A DBR laser is a type of single frequency laser diode.

DFB laser & DBR laser – Typical applications for our technology

Laser technology by Innolume is especially suitable for various medical, industrial, scientific and Datacom applications. These applications include the following subjects:

  • Raman spectroscopy
  • Dense wavelength division multiplex systems (DWDM systems)
  • Gas sensing
  • Phase-shifting interferometry
  • Fiber optic communications

Our DBR and DFB laser are widely applicable and provide exceptional performance as well as reliability. The products are easily tunable without mode-hopping and can be altered to fit various applications. If you are looking for a specific application, our experts are eager to help you find the right solution that fits your needs.

Innolume – Reliable products and solutions for various industries

Is your company in need of a high-quality quantum dot laser? Do you require DFB laser or DBR laser for non-standard applications? Get in touch with us – Innolume provides suitable and unique solutions for all business purposes and guarantees high standards regarding our products:

Focus on quality
Our products are manufactured to last a long time – even under harsh environmental conditions. Products such as our DFB lasers can be optimized for temperature insensitivity up to 100 °C and are not only durable, but also cost-efficient.

Excellent performance
Our lasers can be precisely tuned and operate smoothly at different wavelengths, depending on the DBR / DFB laser. These high-power laser products are guaranteed to work precisely and provide 100% customer satisfaction, regardless of the application.

Custom solutions
You demand, we supply – our portfolio includes semiconductor optical amplifier as well as comb laser and many more products with our revolutionary quantum dot laser technology. Given the wide range of our products, our adaptability and experience, we are eager to present you a solution that fits your business needs.

Do you require additional information regarding our products or do you need further advice when it comes to possible appliances? Feel free to contact us – our experts are available for you.