High-power distributed Bragg reflector lasers for green-light generation

2006 ◽  
Author(s):  
Martin H. Hu ◽  
Hong Ky Nguyen ◽  
Kechang Song ◽  
Yabo Li ◽  
Nick J. Visovsky ◽  
...  
Keyword(s):  
High Power ◽  
Green Light ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector ◽  
Light Generation

High Power Continuous Wave Operation of Distributed Bragg Reflector Quantum Cascade Laser

CLEO: 2013 ◽  
2013 ◽  
Author(s):  
Feng Xie ◽  
Catherine Caneau ◽  
Herve P. LeBlanc ◽  
Ming-tsung Ho ◽  
Lawrence C. Hughes ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
High Power ◽  
Continuous Wave ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector ◽  
Quantum Cascade ◽  
Continuous Wave Operation

Low Voltage Operation of Polymer Light-Emitting Device with Conducting Polymer Distributed Bragg Reflector

1999 ◽  
Vol 598 ◽  
Author(s):  
Takeo Kawase ◽  
Peter K. H. Ho ◽  
Richard H. Friend ◽  
Tatsuya Shimoda
Keyword(s):  
Conducting Polymer ◽  
Low Voltage ◽  
Green Light ◽  
Space Charge Density ◽  
Bragg Reflector ◽  
Field Region ◽  
Distributed Bragg Reflector ◽  
Light Emitting ◽  
Emissive Layer ◽  
Low Field

ABSTRACTPolymer light-emitting devices with a conducting polymer distributed Bragg reflector (DBR) are reported. Polymer DBRs were formed from alternate spin-coating of poly (3,4-ethylenedioxythiophene) (PEDOT) doped with poly(styrenesulphonate) (PSS) as the low-index layer and a hole-transporting polyfluorene derivative as the high-index layer onto ITO deposited glass substrates. The polymer DBR with 5 periods showed reflectivity of 40% at the wavelength of 560nm. Onto this polymer DBR, a green-light-emitting polyfluorene was spin-coated to give the emissive layer and Ca/Al was deposited to form the cathode served another reflector. These LEDs operated successfully at low voltages and emitted light having a narrower spectrum (FWHM=47nm) than structures without the DBR (FWHM=102nm). The peak wavelengths varied corresponding to the thickness of the emissive layer, that is, the cavity length as expected from calculations. The luminance turn-on voltage of the LED with the polymer DBR is 2V, which is the same as LEDs without a DBR. The current was found to be limited by injection in the low field region and limited by space charge density at high fields. The current does not depend on the number of layers in the DBR in the low field region, and this implies that there are no effective energy barriers in the polymer DBR.

High-power singlemode AlGaAs distributed Bragg reflector laser diodes operating at 856 nm

1994 ◽  
Vol 30 (6) ◽  
pp. 496-497 ◽  
Author(s):  
J.S. Major ◽  
S. O'Brien ◽  
R.J. Lang ◽  
V. Gulgazov ◽  
D.F. Welch
Keyword(s):  
High Power ◽  
Laser Diodes ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector

Stable high-power green light generation with a periodically poled stoichiometric lithium tantalate

2005 ◽  
Vol 120 (1-3) ◽  
pp. 146-149 ◽  
Author(s):  
Nan Ei Yu ◽  
Sunao Kurimura ◽  
Yoshiyuki Nomura ◽  
Kenji Kitamura
Keyword(s):  
High Power ◽  
Green Light ◽  
Lithium Tantalate ◽  
Periodically Poled ◽  
Light Generation

Improving the modulation efficiency of high-power distributed Bragg reflector tapered diode lasers

2010 ◽  
Vol 102 (1) ◽  
pp. 43-47 ◽  
Author(s):  
K.-H. Hasler ◽  
B. Sumpf ◽  
P. Adamiec ◽  
J. Fricke ◽  
H. Wenzel ◽  
...  
Keyword(s):  
High Power ◽  
Diode Lasers ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector
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