High-Output-Power Single-Higher-Order Transverse Mode VCSEL With Shallow Surface Relief

Author

Gadallah, Abdel-Sattar ; Michalzik, Rainer

Author_Institution

Inst. of Optoelectron., Ulm Univ., Ulm, Germany

Volume

23

Issue

15

fYear

2011

Firstpage

1040

Lastpage

1042

Abstract

We report high-power single-higher-order transverse mode emission of a large-area oxide-confined rectangular-shaped vertical-cavity surface-emitting laser (VCSEL) with a multispot shallow surface relief. Both a record-high output power of 12 mW and a record-low differential series resistance of 18 Ω are achieved. Stable single-higher-order transverse mode emission with a sidemode suppression ratio (SMSR) exceeding 35 dB is maintained up to thermal rollover. Single-polarization lasing along the major axis is achieved with 27.5-dB spectral orthogonal polarization suppression ratio at thermal rollover. Measurements of near- and far-field intensity profiles of the higher-order mode are also presented.

Keywords

intensity measurement; laser stability; light polarisation; surface emitting lasers; differential series resistance; high-output-power; large-area oxide-confined VCSEL; multispot shallow surface relief; power 12 mW; rectangular-shaped VCSEL; resistance 18 ohm; sidemode suppression ratio; single-polarization lasing; spectral orthogonal polarization suppression ratio; stable single-higher-order transverse mode emission; thermal rollover; vertical-cavity surface-emitting laser; Apertures; Cavity resonators; Laser modes; Optical surface waves; Power generation; Vertical cavity surface emitting lasers; Higher-order mode; polarization control; single-mode; vertical-cavity surface-emitting laser (VCSEL);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2011.2152388

Filename

5773475