scholarly journals 1.1 W continuous-wave, narrow spectral width (<1 Å) emission from broad-stripe, distributed-feedback diode lasers (λ=0.893 μm)

1998 ◽  
Vol 73 (15) ◽  
pp. 2072-2074 ◽  
Author(s):  
T. Earles ◽  
L. J. Mawst ◽  
D. Botez
Keyword(s):  
Continuous Wave ◽  
Diode Lasers ◽  
Spectral Width ◽  
Distributed Feedback

Distributed feedback 3.27 µm diode lasers with continuous‐wave output power above 15 mW at room temperature

2014 ◽  
Vol 50 (19) ◽  
pp. 1378-1380 ◽  
Author(s):  
R. Liang ◽  
T. Hosoda ◽  
L. Shterengas ◽  
A. Stein ◽  
M. Lu ◽  
...  
Keyword(s):  
Output Power ◽  
Room Temperature ◽  
Continuous Wave ◽  
Diode Lasers ◽  
Distributed Feedback ◽  
Continuous Wave Output Power

High power continuous and quasi-continuous wave InGaAsP/InP broad-waveguide separate confinement-heterostructure multiquantum well diode lasers

1997 ◽  
Vol 33 (19) ◽  
pp. 1635 ◽  
Author(s):  
D.Z. Garbuzov ◽  
R.J. Menna ◽  
R.U. Martinelli ◽  
J.H. Abeles ◽  
J.C. Connolly
Keyword(s):  
High Power ◽  
Continuous Wave ◽  
Diode Lasers ◽  
Multiquantum Well

scholarly journals Medical Applications of Diode Lasers: Pulsed versus Continuous Wave (cw) Regime

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 710
Author(s):  
Michał Michalik ◽  
Jacek Szymańczyk ◽  
Michał Stajnke ◽  
Tomasz Ochrymiuk ◽  
Adam Cenian
Keyword(s):  
Diode Laser ◽  
Continuous Wave ◽  
Diode Lasers ◽  
Short Review ◽  
Medical Application ◽  
Medical Applications ◽  
Therapeutic Effects ◽  
Pulsed Mode ◽  
Medical Therapies

The paper deals with the medical application of diode-lasers. A short review of medical therapies is presented, taking into account the wavelength applied, continuous wave (cw) or pulsed regimes, and their therapeutic effects. Special attention was paid to the laryngological application of a pulsed diode laser with wavelength 810 nm, and dermatologic applications of a 975 nm laser working at cw and pulsed mode. The efficacy of the laser procedures and a comparison of the pulsed and cw regimes is presented and discussed.

Distributed feedback device characterization using a continuous wave model

1990 ◽  
Vol 29 (21) ◽  
pp. 3110
Author(s):  
Eric T. Koenig ◽  
Mohammad A. Karim
Keyword(s):  
Continuous Wave ◽  
Wave Model ◽  
Distributed Feedback ◽  
Device Characterization

Quasi-Continuous-Wave Organic Thin-Film Distributed Feedback Laser

2016 ◽  
Vol 4 (6) ◽  
pp. 834-839 ◽  
Author(s):  
Atula S. D. Sandanayaka ◽  
Kou Yoshida ◽  
Munetomo Inoue ◽  
Chuanjiang Qin ◽  
Kenichi Goushi ◽  
...  
Keyword(s):  
Thin Film ◽  
Continuous Wave ◽  
Distributed Feedback ◽  
Organic Thin Film ◽  
Distributed Feedback Laser

Integrated Distributed Feedback Laser and Optical Amplifier

1991 ◽  
Vol 240 ◽  
Author(s):  
N. K. Dutta ◽  
J. Lopata ◽  
R. Logan ◽  
T. Tanbun-Ek
Keyword(s):  
Active Region ◽  
Spectral Width ◽  
Optical Amplifier ◽  
Distributed Feedback ◽  
Performance Characteristics ◽  
Distributed Feedback Laser ◽  
Electrical Isolation ◽  
Current Confinement ◽  
Dfb Laser ◽  
And Performance

ABSTRACTThe fabrication and performance characteristics of an integrated distributed feedback (DFB) laser and optical amplifier structure are described. The structure utilizes semi-insulating Fe doped InP layers for current confinement to the active region, electrical isolation between the two sections and for lateral index guiding. The amplified output has a slope of 1 mW/mA of laser current with the amplifier biased at 150 mA which is a factor of 5 larger than that for a typical laser. The laser emits near 1.55 μm and the spectral width under modulation of the amplified output is considerably smaller than that for a DFB laser for the same on/off ratio.

scholarly journals Spectral Linewidth vs. Front Facet Reflectivity of 780 nm DFB Diode Lasers at High Optical Output Power

2018 ◽  
Vol 8 (7) ◽  
pp. 1104 ◽  
Author(s):  
Thanh-Phuong Nguyen ◽  
Hans Wenzel ◽  
Olaf Brox ◽  
Frank Bugge ◽  
Peter Ressel ◽  
...  
Keyword(s):  
Output Power ◽  
Diode Lasers ◽  
Substantial Reduction ◽  
Distributed Feedback ◽  
Optical Output ◽  
Spectral Linewidth ◽  
Facet Reflectivity ◽  
Simulation Results ◽  
Front Facet

The influence of the front facet reflectivity on the spectral linewidth of high power DFB (distributed feedback) diode lasers emitting at 780 nm has been investigated theoretically and experimentally. Characterization of lasers at various front facet reflections showed substantial reduction of the linewidth. This behavior is in reasonable agreement with simulation results. A minimum linewidth of 8 kHz was achieved at an output power of 85 mW with the laser featuring a front facet reflectivity of 30%. The device with a front facet reflectivity of 5% reached the same linewidth value at an output power of 290 mW.

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