Analysis of single-mode efficiency of electrically pumped VECSELs

2013 ◽  
Author(s):  
Thomas Schwarz ◽  
Michael Berens ◽  
Stephan Gronenborn ◽  
Johanna Kolb ◽  
Peter Loosen ◽  
...  
Keyword(s):  
Single Mode ◽  
Electrically Pumped

scholarly journals Electrically-pumped, broad-area, single-mode photonic crystal lasers

2007 ◽  
Vol 15 (10) ◽  
pp. 5966 ◽  
Author(s):  
Lin Zhu ◽  
Philip Chak ◽  
Joyce K. S. Poon ◽  
Guy A. DeRose ◽  
Amnon Yariv ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Single Mode ◽  
Broad Area ◽  
Electrically Pumped

scholarly journals Continuous-wave operation of electrically pumped, single-mode, edge-emitting photonic crystal Bragg lasers

2007 ◽  
Vol 90 (26) ◽  
pp. 261116 ◽  
Author(s):  
Lin Zhu ◽  
Xiankai Sun ◽  
Guy A. DeRose ◽  
Axel Scherer ◽  
Amnon Yariv
Keyword(s):  
Photonic Crystal ◽  
Continuous Wave ◽  
Single Mode ◽  
Continuous Wave Operation ◽  
Electrically Pumped

Electrically Pumped Photonic Crystal Distributed Feedback Quantum Cascade Lasers

2008 ◽  
Vol 1076 ◽  
Author(s):  
Manijeh Razeghi ◽  
Yanbo Bai ◽  
Steven Slivken ◽  
Wei Zhang
Keyword(s):  
Photonic Crystal ◽  
Quantum Cascade Lasers ◽  
Single Mode ◽  
Distributed Feedback ◽  
Broad Area ◽  
Quantum Cascade ◽  
Mode Operation ◽  
Fabry Perot ◽  
Electrically Pumped ◽  
Cascade Lasers

ABSTRACTIn parallel with the effort to improve the efficiency of Quantum cascade lasers (QCL) for high power continuous wave (CW) operations, the peak power in pulsed mode operation can be easily scaled up with larger emitting volumes, i.e., processing QCLs into broad area lasers. However, as the emitter width increases, multi-mode operation happens due to poorer lateral mode distinguishability. By putting a two dimensional photonic crystal distributed feedback (PCDFB) layer evanescently coupled to the main optical mode, both longitudinal and lateral beam coherence can be greatly enhanced, which makes single mode operation possible for broad area devices. For PCDFB laser performance, the linewidth enhancement factor (LEF) plays an important role in controlling the optical coherence. Being intersubband devices, QCLs have an intrinsically small LEF, thus serves better candidates over interband lasers for PCDFB applications. We demonstrate electrically pumped, room temperature, single mode operation of photonic crystal distributed feedback quantum cascade lasers emitting at λ ∼ 4.75 μm. Ridge waveguides of 50 μm and 100 μm width were fabricated with both PCDFB and Fabry-Perot feedback mechanisms. The Fabry-Perot device has a broad emitting spectrum and a broad far-field character. The PCDFB devices have primarily a single spectral mode and a diffraction limited far field characteristic with a full angular width at half-maximum of 4.8 degrees and 2.4 degrees for the 50 μm and 100 μm ridge widths, respectively.

scholarly journals Electrically pumped 1550 nm single mode III-V-on-silicon laser with resonant grating cavity mirrors

2015 ◽  
Vol 9 (2) ◽  
pp. L6-L10 ◽  
Author(s):  
Yannick De Koninck ◽  
Gunther Roelkens ◽  
Roel Baets
Keyword(s):  
Single Mode ◽  
Mode Iii ◽  
Electrically Pumped ◽  
Resonant Grating ◽  
Silicon Laser

Electrically Pumped Single-Mode Lasing Emission of Self-Assembled n-ZnO Microcrystalline Film/p-GaN Heterojunction Diode

2010 ◽  
Vol 114 (36) ◽  
pp. 15499-15503 ◽  
Author(s):  
Zhen Guo ◽  
Dongxu Zhao ◽  
Yichun Liu ◽  
Dezhen Shen ◽  
Bin Yao ◽  
...  
Keyword(s):  
Single Mode ◽  
Heterojunction Diode ◽  
Electrically Pumped ◽  
Self Assembled

scholarly journals Single-mode electrically pumped GaSb-based VCSELs emitting continuous-wave at 2.4 and 2.6 μm

2009 ◽  
Vol 11 (12) ◽  
pp. 125014 ◽  
Author(s):  
Alexander Bachmann ◽  
Shamsul Arafin ◽  
Kaveh Kashani-Shirazi
Keyword(s):  
Continuous Wave ◽  
Single Mode ◽  
Electrically Pumped
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