Broadband continuous-wave GaSb-based superluminescent diodes emitting at 2.1 μm
Source abstract
Abstract
We report development of GaSb-based superluminescent diodes (SLDs) emitting around 2.1 μm wavelength for applications in sensing and non-destructive imaging benefitting from broad and smooth spectra with low modulation depth ripples. Record-large spectral bandwidth is reported by exploiting an asymmetric type-I double quantum well InGaSb/AlGaAsSb active region. Preventing lasing from such gain structures while enhancing the amplified stimulated emission and mitigating the spectral modulation is essential. To this end, we employ J-waveguide chip architecture and perform a systematic study of the influence of facet’s reflectivity orienting the SLD chip’s p-side in upward direction. Broad emission with a full width at half maximum spectrum of ≥140 nm [corresponds to ∼1 mW in continuous wave (CW) power] and minimal ripples is reported, which is a nearly twofold increase in emission bandwidth compared to the previous reports in this spectral region. We also report SLD devices that can deliver a maximum output power of 56 mW for a limited bandwidth of ∼45 nm at room temperature in CW operation.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Photonic and Optical Devices · Semiconductor Lasers and Optical Devices · Spectroscopy and Laser Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Optoelectronics Research Centre, Physics Units, Tampere University , Korkeakoulunkatu 3, 33720 Tampere,
Funding
Horizon 2020 Framework Programme · Academy of Finland flagship program PREIN
References (44)
Show source-provided references
1. Numerical simulations of blue and green GaN SLEDs
2. 200 mW GaN-based superluminescent diode with a novel waveguide structure
3. Optical coherence tomography10.1126/science.1957169 ↗
4. State-of-the-art retinal optical coherence tomography10.1016/j.preteyeres.2007.07.005 ↗
5. High resolution imaging of in vivo cardiac dynamics using color Doppler optical coherence tomography10.1364/oe.1.000424 ↗
6. Fiber-optic gyroscopes with broad-band sources10.1109/jlt.1983.1072090 ↗
7. Applications of SLDs in fiber optical gyroscopes
8. Fiber-optic gyroscopes: From design to production [Invited]10.1364/ao.50.00e152 ↗
9. Low-coherence semiconductor light sources: Devices and applications10.1038/s44310-024-00005-w ↗
10. A fiber-optic sensing technique for sub-micrometer distance measurement between the surgical tools and retina
11. Impact of temperature on optical sensing in biology based on investigation of SARS-CoV-210.1002/jbio.202200186 ↗
12. Single-arm self-mixing superluminescent diode interferometer for flow measurements10.1109/jlt.2016.2583919 ↗
13. A review on guided optical feedback in super-luminescence diodes for metrological purposes10.1109/jlt.2020.3035565 ↗
14. High power continuous-wave GaSb-based superluminescent diodes as gain chips for widely tunable laser spectroscopy in the 1.95–2.45 μm wavelength range10.1063/1.4926367 ↗
15. Group-III-nitride superluminescent diodes for solid-state lighting and high-speed visible light communications10.1109/jstqe.2019.2915995 ↗
16. Non-destructive forensic latent fingerprint acquisition with chromatic white light sensors10.1117/12.872331 ↗
17. Real-time high-resolution mid-infrared optical coherence tomography10.1038/s41377-019-0122-5 ↗
18. The HITRAN2012 molecular spectroscopic database10.1016/j.jqsrt.2013.07.002 ↗
19. Optical coherence tomography based imaging of dental demineralisation and cavity restoration in 840 nm and 1310 nm wavelength regions10.1016/j.optlaseng.2016.03.005 ↗
20. Dental diagnosis and treatment assessments: Between x-rays radiography and optical coherence tomography10.3390/ma13214825 ↗
21. OCT for examination of cultural heritage objects10.5772/intechopen.81767 ↗
22. A non-invasive investigation of Egyptian faience using long wavelength optical coherence tomography (OCT) at 2 μm10.1080/00393630.2020.1871208 ↗
23. Optimum spectral window for imaging of art with optical coherence tomography10.1007/s00340-013-5378-5 ↗
24. High power (60 mW) GaSb-based 1.9 μm superluminescent diode with cavity suppression element10.1063/1.4971972 ↗
25. High performance continuous-wave InP-based 2.1 μm superluminescent diode with InGaAsSb quantum well and cavity structure suppression10.1063/1.5052056 ↗
26. High-power single mode GaSb-based 2 μm superluminescent diode with double-pass gain10.1063/1.5127407 ↗
27. High power GaSb-based superluminescent diode with cascade cavity suppression waveguide geometry and ultra-low antireflection coating10.1063/5.0157235 ↗
28. GaSb-based mid-infrared 2–5 μm laser diodes10.1016/S1631-0705(03)00098-7 ↗
29. Low-threshold strained quantum-well GaSb-based lasers emitting in the 2.5- to 2.7- μm wavelength range10.1109/lpt.2009.2023077 ↗
30. Gallium antimonide (GaSb)-based type-I quantum well diode lasers: Recent development and prospects10.1533/9780857096401.3.441 ↗
31. Wavelength dependence of efficiency limiting mechanisms in type-I mid-infrared GaInAsSb/GaSb lasers10.1109/jstqe.2017.2687823 ↗
32. GaInAsSb/AlGa(In)AsSb type I quantum wells emitting in 3 μm range for application in superluminescent diodes10.1016/j.optmat.2019.03.036 ↗
33. Broad-band emission from a multiple asymmetric quantum-well light-emitting diode10.1109/68.93870 ↗
34. Broad-band superluminescent diodes fabricated on a substrate with asymmetric dual quantum wells10.1109/68.541548 ↗
35. Extremely broadband AlGaAs/GaAs superluminescent diodes10.1063/1.119844 ↗
36. Extremely broadband InGaAsP/InP superluminescent diode/semiconductor optical amplifiers with emission spectrum covering from 1250 nm to 1650 nm10.1364/OAA.2003.MD20 ↗
37. Dual-wavelength InGaAsSb/AlGaAsSb quantum-well light-emitting diodes10.3938/jkps.72.1249 ↗
38. See https://photond.com/products/harold.htm for more information about HAROLD by photon design, 2023.
39. Photoluminescence study of heavy doping effects in Te-doped GaSb10.1063/1.365297 ↗
40. Dramatic size reduction of waveguide bends on a micron-scale silicon photonic platform10.1364/oe.21.017814 ↗
41. AlGaAs/GaAs double-heterostructure superluminescent diodes for optical transmission systems10.1515/freq.1979.33.10.278 ↗
42. Design of high-power superluminescent diodes with low spectral modulation10.1117/12.462649 ↗
43. Temperature mapping and thermal lensing in large-mode, high-power laser diodes10.1063/1.2388884 ↗
44. 1.6 W continuous-wave coherent power from large-index-step (Δn ≈ 0.1) near-resonant, antiguided diode laser arrays10.1063/1.125990 ↗