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Large-aperture single-mode GaSb-based BTJ-VCSELs at 2.62 µm
2010 Edition, September 1, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We report on large aperture (D BTJ = 9 µm) GaSb-based BTJ VCSELs at 2.62 µm which show single-mode operation (SMSR > 30 dB) over the entire operating range. Devices are electrically-pumped and operate in...

Large-area single-mode GaSb-based VCSELs using an inverted surface relief
2010 Edition, November 1, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Large-area GaSb-based BTJ VCSELs at ~2.35 μm were fabricated using an inverted surface relief technique to support the single transverse mode operation. The devices operate in continuous-wave and are (electro-)thermally tunable over 6 nm.

Transverse-Mode Characteristics of GaSb-Based VCSELs With Buried-Tunnel Junctions
2011 Edition, Volume 17, November 1, 2011 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We report the transverse-mode characteristics of GaSb-based vertical-cavity surface-emitting lasers (VCSELs) with buried-tunnel junctions (BTJs). The optical-index guiding in the devices is achieved by an effective refractive index step due to the presence of a...

Long-wavelength BTJ-VCSEL with high-contrast grating
2010 Edition, May 1, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

InP-based, long-wavelength buried tunnel junction (BTJ) VCSELs, emitting at 1.32 μm with a high-contrast grating (HCG) are demonstrated. This is the first HCG VCSEL presented emitting at long wavelengths. CW operation is demonstrated up to 18°C. The device...

Single-mode continuous wave operation of electrically pumped 2.25 μm GaSb-based VCSEL
2008 Edition, May 1, 2008 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We present a continuous wave, electrically pumped, GaSb-based vertical-cavity surface-emitting laser (VCSEL) for trace-gas sensing applications with a room-temperature emission wavelength of 2.25 mum. For current confinement, a structured buried tunnel junction (BTJ) is...

Single-Mode Vertical Cavity Surface Emitting Laser via Oxide-Aperture-Engineering of Leakage of High-Order Transverse Modes
2014 Edition, Volume 50, December 1, 2014 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Properly designed oxide-confined vertical cavity surface emitting laser (VCSEL) allows leakage of the optical modes from the all-semiconductor core region to the selectively oxidized periphery if the orthogonality between the core mode and the modes on the periphery is...

High power single mode VCSELs using surface microstructures
2004 Edition, Volume 1, January 1, 2004 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Surface microstructure in an oxide confined VCSEL with a relatively large oxide aperture, with the basic idea being that the oxide aperture defines and stabilizes the transverse modes and the surface structure selects the fundamental mode, is used....

Comparison of buried and implanted tunnel junction as current confinement schemes for the realisation of single-transverse-mode large diameter (50μm) 1.55μm InP-based electrically-pumped VECSELs
2006 Edition, October 1, 2006 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We compared buried (BTJ) and ion implanted tunnel junction (ITJ) as current confinement schemes for 1550 nm 1/2-VCSELS. Reduced thermal resistance is obtained for BJT, but reduced current crowding is evidenced for ITJ. Single-transverse mode laser emission is...

High-Temperature Dynamics, High-Speed Modulation, and Transmission Experiments Using 1.3- $\mu\hbox{m}$ InGaAs Single-Mode VCSELs
2007 Edition, Volume 25, September 1, 2007 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

High-temperature dynamics, including small and large signal modulation response, of 1.28-μm GaAs-based vertical-cavity surface-emitting lasers (VCSELs) with highly strained InGaAs quantum wells have been investigated. The VCSELs are oxide-confined with a relatively...

Long-Wavelength High-Contrast Grating Vertical-Cavity Surface-Emitting Laser
2010 Edition, Volume 2, June 1, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A novel long-wavelength vertical-cavity surface-emitting laser (VCSEL) structure based on a subwavelength high-contrast grating (HCG) as the output mirror has been realized. By design, these devices are highly polarization stable, are single mode at large...

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