scholarly journals Влияние конструкции резонатора на ширину линии одномодовых вертикально-излучающих лазеров ближнего ИК-диапазона

2018 ◽  
Vol 44 (1) ◽  
pp. 67
Author(s):  
С.А. Блохин ◽  
М.А. Бобров ◽  
А.Г. Кузьменков ◽  
А.А. Блохин ◽  
А.П. Васильев ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Optical Cavity ◽  
Single Mode ◽  
Cavity Surface ◽  
Carrier Injection ◽  
Near Ir ◽  
Surface Emitting Lasers ◽  
Vertical Cavity Surface ◽  
Emitting Lasers ◽  
Vertical Cavity

AbstractThe studies of the emission linewidth for single-mode near-IR vertical-cavity surface-emitting lasers with an active region based on InGaAs/AlGaAs quantum wells and different optical microcavity design. For low mirror loss, lasers with a 1λ cavity and carrier injection through distributed Bragg reflectors demonstrate a linewidth of 70 MHz and its growth to 110 MHz with increasing mirror loss (corresponding differential of efficiency ∼0.65 W/A). The design of the optical cavity with carrier injection through intracavity contacts and low-Q composition Bragg lattices reduces the linewidth to 40 MHz in spite of high mirror loss (corresponding differential efficiency of ∼0.6 W/A).

Emission-Line Width and α-Factor of 850-nm Single-Mode Vertical-Cavity Surface-Emitting Lasers Based on InGaAs/AlGaAs Quantum Wells

2018 ◽  
Vol 52 (1) ◽  
pp. 93-99 ◽  
Author(s):  
S. A. Blokhin ◽  
M. A. Bobrov ◽  
A. A. Blokhin ◽  
A. G. Kuzmenkov ◽  
A. P. Vasil’ev ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Emission Line ◽  
Line Width ◽  
Single Mode ◽  
Cavity Surface ◽  
Surface Emitting Lasers ◽  
Vertical Cavity Surface ◽  
Emitting Lasers ◽  
Vertical Cavity

scholarly journals Single Mode Photonic Crystal Vertical Cavity Surface Emitting Lasers

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Kent D. Choquette ◽  
Dominic F. Siriani ◽  
Ansas M. Kasten ◽  
Meng Peun Tan ◽  
Joshua D. Sulkin ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Optical Cavity ◽  
Single Mode ◽  
Periodic Pattern ◽  
Cavity Surface ◽  
Lasing Wavelength ◽  
Surface Emitting Lasers ◽  
Vertical Cavity Surface ◽  
Emitting Lasers ◽  
Vertical Cavity

We review the design, fabrication, and performance of photonic crystal vertical cavity surface emitting lasers (VCSELs). Using a periodic pattern of etched holes in the top facet of the VCSEL, the optical cavity can be designed to support the fundamental mode only. The electrical confinement is independently defined by proton implantation or oxide confinement. By control of the refractive index and loss created by the photonic crystal, operation in the Gaussian mode can be insured, independent of the lasing wavelength.

Active Anti-Guide Vertical Cavity Surface Emitting Lasers with Diffused Quantum Wells Structure

1997 ◽  
Vol 484 ◽  
Author(s):  
S. F. Yu ◽  
E. Herbert Li ◽  
W. M. Man
Keyword(s):  
Quantum Wells ◽  
Single Mode ◽  
Transverse Mode ◽  
Hole Burning ◽  
Cavity Surface ◽  
Mode Operation ◽  
Surface Emitting Lasers ◽  
Vertical Cavity Surface ◽  
Emitting Lasers ◽  
Vertical Cavity

AbstractThe enhancement of single transverse mode operation in vertical cavity surface emitting lasers by using interdiffused quantum wells is proposed and analyzed. It is observed that the influence of self-focusing (arising from carrier spatial hole burning and thermal lensing) on the profile of transverse modes can be minimized by introducing a step diffused quantum wells structure inside the core region of quantum-well active layer. Stable single-mode operation in vertical cavity surface emitting lasers can also be maintained.

The Influence of Cavity Design on the Linewidth of Near-IR Single-Mode Vertical-Cavity Surface-Emitting Lasers

2018 ◽  
Vol 44 (1) ◽  
pp. 28-31
Author(s):  
S. A. Blokhin ◽  
M. A. Bobrov ◽  
A. G. Kuz’menkov ◽  
A. A. Blokhin ◽  
A. P. Vasil’ev ◽  
...  
Keyword(s):  
Single Mode ◽  
Cavity Surface ◽  
Near Ir ◽  
Surface Emitting Lasers ◽  
Vertical Cavity Surface ◽  
Cavity Design ◽  
Emitting Lasers ◽  
Vertical Cavity

scholarly journals Ширина линии излучения и alpha-фактор одномодовых вертикально-излучающих лазеров спектрального диапазона 850 нм на основе квантовых ям InGaAs/AlGaAs -=SUP=-*-=/SUP=-

2018 ◽  
Vol 52 (1) ◽  
pp. 98
Author(s):  
С.А. Блохин ◽  
М.А. Бобров ◽  
А.А. Блохин ◽  
А.Г. Кузьменков ◽  
А.П. Васильев ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Emission Line ◽  
Output Power ◽  
Single Mode ◽  
Cavity Surface ◽  
Optical Output ◽  
Surface Emitting Lasers ◽  
Vertical Cavity Surface ◽  
Emitting Lasers ◽  
Vertical Cavity

AbstractThe emission-line width for 850-nm single-mode vertical-cavity surface-emitting lasers based on InGaAs/AlGaAs quantum wells is studied. The width of the emission line for a laser with a 2-μm oxide current aperture attains it minimum (~110 MHz) at an output power of 0.8 mW. As the optical output power is further increased, anomalous broadening of the emission line is observed; this is apparently caused by an increase in the α-factor as a result of a decrease in the differential gain in the active region under conditions of increased concentration of charge carriers and of high internal optical losses in the microcavity. The α-factor is estimated using two independent methods.

scholarly journals Hexagonal transverse-coupled-cavity VCSEL redefining the high-speed lasers

Nanophotonics ◽  
2020 ◽  
Vol 9 (16) ◽  
pp. 4743-4748
Author(s):  
Elham Heidari ◽  
Hamed Dalir ◽  
Moustafa Ahmed ◽  
Volker J. Sorger ◽  
Ray T. Chen
Keyword(s):  
High Speed ◽  
Single Mode ◽  
Cavity Surface ◽  
Surface Emitting Lasers ◽  
Vertical Cavity Surface ◽  
Emitting Lasers ◽  
Injection Currents ◽  
Vertical Cavity ◽  
Coupled Cavity ◽  
Modulation Speed

AbstractVertical-cavity surface-emitting lasers (VCSELs) have emerged as a vital approach for realizing energy-efficient and high-speed optical interconnects in the data centers and supercomputers. Indeed, VCSELs are the most suitable mass production lasers in terms of cost-effectiveness and reliability. However, there are still key challenges that prevent achieving modulation speeds beyond 30s GHz. Here, we propose a novel VCSEL design of a hexagonal transverse-coupled-cavity adiabatically coupled through a central cavity. Following this scheme, we show a prototype demonstrating a 3-dB roll-off modulation bandwidth of 45 GHz, which is five times greater than a conventional VCSEL fabricated on the same epiwafer structure. This design harnesses the Vernier effect to increase the laser’s aperture and therefore is capable of maintaining single-mode operation of the laser for high injection currents, hence extending the dynamic roll-off point and offering increases power output. Simultaneously, extending both the laser modulation speed and output power for this heavily deployed class of lasers opens up new opportunities and fields of use ranging from data-comm to sensing, automotive, and photonic artificial intelligence systems.

Sign in / Sign up

Export Citation Format

Share Document