Tunable distributed feedback lasing with low threshold and high slope efficiency from electroluminescent conjugated polymer waveguide

2011 ◽  
Vol 284 (13) ◽  
pp. 3365-3368 ◽  
Author(s):  
Naoto Tsutsumi ◽  
Hitoshi Nishida
Keyword(s):  
Slope Efficiency ◽  
Conjugated Polymer ◽  
Distributed Feedback ◽  
High Slope ◽  
Polymer Waveguide ◽  
Low Threshold

980 nm high power, high slope efficiency distributed feedback lasers with nonabsorbing mirrors

1998 ◽  
Vol 34 (17) ◽  
pp. 1663 ◽  
Author(s):  
R.M. Lammert ◽  
J.E. Ungar ◽  
S.W. Oh ◽  
H. Qi ◽  
J.S. Chen ◽  
...  
Keyword(s):  
High Power ◽  
Slope Efficiency ◽  
Distributed Feedback ◽  
Distributed Feedback Lasers ◽  
High Slope

Low threshold blue conjugated polymer lasers with first- and second-order distributed feedback

2006 ◽  
Vol 89 (20) ◽  
pp. 201108 ◽  
Author(s):  
C. Karnutsch ◽  
C. Gýrtner ◽  
V. Haug ◽  
U. Lemmer ◽  
T. Farrell ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Second Order ◽  
Distributed Feedback ◽  
Low Threshold

scholarly journals High slope efficiency and low threshold in a diode-pumped epitaxially grown Yb:YAG waveguide laser

1995 ◽  
Vol 115 (5-6) ◽  
pp. 491-497 ◽  
Author(s):  
D Pelenc ◽  
B Chambaz ◽  
I Chartier ◽  
B Ferrand ◽  
C Wyon ◽  
...  
Keyword(s):  
Slope Efficiency ◽  
Waveguide Laser ◽  
High Slope ◽  
Diode Pumped ◽  
Low Threshold

scholarly journals Operating Characteristics of High-Order Distributed Feedback Polymer Lasers

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 258 ◽  
Author(s):  
Puxi Zhou ◽  
Lianze Niu ◽  
Anwer Hayat ◽  
Fengzhao Cao ◽  
Tianrui Zhai ◽  
...  
Keyword(s):  
Slope Efficiency ◽  
Structural Parameters ◽  
Groove Depth ◽  
High Order ◽  
Distributed Feedback ◽  
Interference Lithography ◽  
Operating Characteristics ◽  
Multiple Wavelength ◽  
Low Threshold ◽  
Manufacturing Tolerances

In this study, high-order distributed-feedback (DFB) polymer lasers were comparatively investigated. Their performance relies on multiple lasing directions and their advantages include their high manufacturing tolerances due to the large grating periods. Nine laser cavities were fabricated by spin-coating the gain polymer films onto a grating structure, which was manufactured via interference lithography that operated at the 2nd, 3rd, and 4th DFB orders. Low threshold lasing and high slope efficiency were achieved in high-order DFB polymer lasers due to the large grating groove depth and the large gain layer thickness. A high-order DFB configuration shows possible advantages, including the ability to control the lasing direction and to achieve multiple-wavelength lasers. Furthermore, our investigation demonstrates that the increase in threshold and decrease in slope efficiency with an increase in the feedback order can be limited by controlling the structural parameters.

scholarly journals High Slope Efficiency and Low Threshold in a Diode Pumped Epitaxially Grown Yb:YAG Waveguide Laser

1993 ◽  
Vol 329 ◽  
Author(s):  
Isabelle Chartier ◽  
C. Wyon ◽  
D. Pelenc ◽  
B. Ferrand ◽  
D. P. Shepherd ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Slope Efficiency ◽  
Planar Waveguide ◽  
Room Temperature ◽  
Planar Waveguides ◽  
Laser Operation ◽  
Waveguide Laser ◽  
High Slope ◽  
Diode Pumped ◽  
Low Threshold

AbstractWe report the 1.03 μm laser operation of a diode-pumped Yb doped YAG planar waveguide at room temperature. The fabrication of multilayer planar waveguides by Liquid Phase Epitaxy and their characterization are also described.Laser results (40 mW threshold, 80 % slope efficiency) obtained with a 2.9 % output coupler compares favourably with bulk results reported elsewhere.

Low threshold current AlGaAs/GaAs distributed feedback laser grown by two‐step molecular beam epitaxy

1985 ◽  
Vol 47 (6) ◽  
pp. 570-572 ◽  
Author(s):  
Keisuke Kojima ◽  
Susumu Noda ◽  
Kazumasa Mitsunaga ◽  
Kazuo Kyuma ◽  
Takashi Nakayama
Keyword(s):  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Threshold Current ◽  
Distributed Feedback ◽  
Distributed Feedback Laser ◽  
Low Threshold
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