Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Improving beam quality of tapered laser diodes by integrated metalens

Not Accessible

Your library or personal account may give you access

Abstract

High-power and high-beam-quality laser sources are required in numerous applications. Here, we theoretically investigate a tapered laser diode with integrated metalens, which can improve the lateral beam quality. By carefully designing the slot length and width at different lateral positions behind the front facet, the mode mismatch between the ridged cavity and the tapered cavity is overcome while ensuring high transmittance (${\gt}{96}\%$). The beam quality is greatly improved, and the lateral far-field divergence is reduced. The simulation results show that the lateral far-field divergence (second-moment level) decreases from 7.2° to 5.9°, and the ${M^{\,2}}$ (second-moment level) decreases from 2.3 to 1.2. The proposed structure shows a good thermal stability in the simulation.

© 2023 Optica Publishing Group

Full Article  |  PDF Article

Corrections

6 July 2023: A correction was made to the funding section.


More Like This
Near-diffraction-limited Bragg reflection waveguide lasers

Lijie Wang, Zhen Li, Cunzhu Tong, Shili Shu, Sicong Tian, Jun Zhang, Xin Zhang, and Lijun Wang
Appl. Opt. 57(34) F15-F21 (2018)

783 nm wavelength stabilized DBR tapered diode lasers with a 7 W output power

Bernd Sumpf, Lara Sophie Theurer, Martin Maiwald, André Müller, André Maaßdorf, Jörg Fricke, Peter Ressel, and Günther Tränkle
Appl. Opt. 60(18) 5418-5423 (2021)

High-spectral-radiance, red-emitting tapered diode lasers with monolithically integrated distributed Bragg reflector surface gratings

David Feise, Wilfred John, Frank Bugge, Christian Fiebig, Gunnar Blume, and Katrin Paschke
Opt. Express 20(21) 23374-23382 (2012)

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.