![Figure 3 from Multiple wavelength DFB laser arrays with high coupling coefficient and precise channel spacing | Semantic Scholar Figure 3 from Multiple wavelength DFB laser arrays with high coupling coefficient and precise channel spacing | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/8e4f75c26ecaf7b9f2a6d82ba25cd98ba9472764/3-Figure3-1.png)
Figure 3 from Multiple wavelength DFB laser arrays with high coupling coefficient and precise channel spacing | Semantic Scholar
![Emission spectrum of DFB laser at 20 C with CW drive current of 110 mA | Download Scientific Diagram Emission spectrum of DFB laser at 20 C with CW drive current of 110 mA | Download Scientific Diagram](https://www.researchgate.net/publication/3388104/figure/fig3/AS:668920944021532@1536494589904/Emission-spectrum-of-DFB-laser-at-20-C-with-CW-drive-current-of-110-mA.png)
Emission spectrum of DFB laser at 20 C with CW drive current of 110 mA | Download Scientific Diagram
![Figure 2 from 4.6 nm Mode-Hop-Free Tunable DFB Laser with High Coupling Coefficient Gratings | Semantic Scholar Figure 2 from 4.6 nm Mode-Hop-Free Tunable DFB Laser with High Coupling Coefficient Gratings | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/bde77142b64b0356ef7690c3aec1154d9e6ab782/2-Figure2-1.png)
Figure 2 from 4.6 nm Mode-Hop-Free Tunable DFB Laser with High Coupling Coefficient Gratings | Semantic Scholar
![Top: output spectrum of DFB laser from front end. Below: corresponding... | Download Scientific Diagram Top: output spectrum of DFB laser from front end. Below: corresponding... | Download Scientific Diagram](https://www.researchgate.net/publication/224435570/figure/fig1/AS:401171559796737@1472658161118/Top-output-spectrum-of-DFB-laser-from-front-end-Below-corresponding-spectrum-from-back.png)
Top: output spectrum of DFB laser from front end. Below: corresponding... | Download Scientific Diagram
![Figure 15 from Study of the Multiwavelength DFB Semiconductor Laser Array Based on the Reconstruction-Equivalent-Chirp Technique | Semantic Scholar Figure 15 from Study of the Multiwavelength DFB Semiconductor Laser Array Based on the Reconstruction-Equivalent-Chirp Technique | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/c9dc654fec461a8af03a8813e7db1eb5e91b3d4b/6-Figure15-1.png)
Figure 15 from Study of the Multiwavelength DFB Semiconductor Laser Array Based on the Reconstruction-Equivalent-Chirp Technique | Semantic Scholar
![Advanced distributed feedback lasers based on composite fiber heavily doped with erbium ions | Scientific Reports Advanced distributed feedback lasers based on composite fiber heavily doped with erbium ions | Scientific Reports](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-020-71432-w/MediaObjects/41598_2020_71432_Fig1_HTML.png)
Advanced distributed feedback lasers based on composite fiber heavily doped with erbium ions | Scientific Reports
Ultra-narrow linewidth DFB-laser with optical feedback from a monolithic confocal Fabry-Perot cavity
![GaN-based DFB laser diodes with 10th-order laterally coupled surface gratings | Ferdinand-Braun-Institut GaN-based DFB laser diodes with 10th-order laterally coupled surface gratings | Ferdinand-Braun-Institut](https://www.fbh-berlin.de/fileadmin/_processed_/7/f/csm_Fig.2_emission_spectrum_LC-DFB_LD_51b4c03148.jpg)