Wavelength-stabilized near-field laser
Authors:
- Vitaly A. Shchukin,
- Vladimir M. Kalosha,
- Nikolay Ledentsov Jr.,
- Łukasz Chorchos,
- Nikolay N. Ledentsov
Abstract
Surface-trapped electromagnetic waves can be localized at a boundary between a semiconductor distributed Bragg reflector (DBR) and a homogeneous dielectric medium or air. These waves enable a novel class of both in-plane-emitting and vertically-emitting optical devices including edge-emitting lasers, disk microlasers, near-field fiber-coupled lasers as well as vertical cavity surface emitting lasers (VCSELs). We show that the surface-trapped modes can be controlled by tuning the thickness of a single DBR layer. Diagrams in variables "wavelength - thickness of the control layer" are constructed for both TM and TE optical modes revealing the parameter domains, in which surface-trapped modes exist. The domains contain cusps, in the vicinity of which surface-trapped modes are allowed only in a narrow spectral region, enabling wavelength-stabilized operation of a laser. For an edge-emitting structure designed for lasing at ∼1 μm, the lasing wavelength shifts upon temperature at a rate ∼0.07 nm/K. The fraction of the optical power of the surface-trapped mode accumulated in the air can reach ∼60%. In oxide-confined VCSEL structures the surface-trapped mode can be used for engineering of the interaction with the VCSEL lasing modes. Deposition of an effective (3λ/4)-thick additional layer on top of the top DBR of the VCSEL allows surface-trapped modes to reach the wavelength of the VCSEL lasing modes. Interaction of these two types of generally non-orthogonal optical modes results in the lateral leakage of the VCSEL emission. Mapping of the VCSEL wafers in areas with the variable aperture diameters D shows non-monotonous behavior of side mode suppression ratio (SMRS) versus D oscillating in the range from 7 dB to ∼30 dB with three clearly revealed maxima in the SMSR at particular aperture diameters varied in the range from ∼3 μm to ∼5 μm. Similar oscillatory behavior was previously predicted for a different type of leaky VCSELs. VCSELs with SMSR above 20 dB are tested for data transmission over a multimode fiber (MMF). 40Gb/s open eye data transmission over 1.4 km OM5 MMF without pre-emphasis or equalization is demonstrated is such device.
- Record ID
- WUT076297b2834a4b038424ecc7d883c0f9
- Author
- Pages
- 1-16
- Publication size in sheets
- 0.75
- Article number
- 113011I
- Book
- Belyanin Alexey A., Alexey A. Belyanin Smowton Peter M. Peter M. Smowton (eds.): Proceedings of the Novel In-Plane Semiconductor Lasers XIX - SPIE OPTO 2020, Proceedings of SPIE: The International Society for Optical Engineering , vol. 11301, 2020, SPIE - The International Society for Optics and Photonics, 160 p., ISBN 9781510633650. DOI:10.1117/12.2569981 Opening in a new tab
- Keywords in English
- surface–trapped optical mode, near field laser, wavelength–stabilized laser, oxide–confined vertical cavity surface–emitting laser (VCSEL), leaky VCSEL, single mode VCSEL
- DOI
- DOI:10.1117/12.2545235 Opening in a new tab
- URL
- https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11301/113011I/Wavelength-stabilized-near-field-laser/10.1117/12.2545235.full Opening in a new tab
- Language
- (en) English
- File
-
- File: 1
- 2020 Chorchos Wavelength-stabilized near-field laser.pdf
-
- Score (nominal)
- 20
- Score source
- publisherList
- Score
- = 20.0, 03-05-2022, ChapterFromConference
- Publication indicators
- = 3; = 0; : 2018 = 0.394
- Uniform Resource Identifier
- https://repo.pw.edu.pl/info/article/WUT076297b2834a4b038424ecc7d883c0f9/
- URN
urn:pw-repo:WUT076297b2834a4b038424ecc7d883c0f9
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or PerishOpening in a new tab system.