Experimental Study of PWM-Controlled Emission From a Large-Aperture VCSEL
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F25%3A43899452" target="_blank" >RIV/44555601:13440/25:43899452 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27240/25:10258234
Result on the web
<a href="https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11006843&utm_source=clarivate&getft_integrator=clarivate" target="_blank" >https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11006843&utm_source=clarivate&getft_integrator=clarivate</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/JPHOT.2025.3571423" target="_blank" >10.1109/JPHOT.2025.3571423</a>
Alternative languages
Result language
angličtina
Original language name
Experimental Study of PWM-Controlled Emission From a Large-Aperture VCSEL
Original language description
This study demonstrates the use of pulse-width modulation (PWM) for mode selection in a large-aperture vertical-cavity surface-emitting laser (VCSEL). Experimental results reveal that driving the device with 1 kHz PWM pulses maintains a stable far-field pattern (FFP) and causes only negligible spectral drift. Increasing the PWM frequency up to 1 MHz redistributes the FFP from higher-order, donut-like transverse modes toward a centrally peaked, Gaussian-like mode, and shifts the dominant longitudinal resonance to shorter wavelengths. Encircled energy analysis quantifies these changes and confirms that PWM enables fine spatial and spectral emission control of the selected large-aperture VCSEL device. The results position PWM as a cost-effective and straightforward lever for dynamic VCSEL emission management.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Photonics Journal
ISSN
1943-0655
e-ISSN
1943-0647
Volume of the periodical
17
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
"nestrankovano"
UT code for WoS article
001506590100001
EID of the result in the Scopus database
2-s2.0-10500589695